Standards Map
Compare how product standards and technical standards across GB, ASTM, ANSI/NAAMM/EMMA, ISO, and EN/DIN relate for Perforated Metal, Expanded Metal, Bar Grating, and Checkered Plate — spanning base materials, protective coatings, testing methods, and structural safety criteria.
Reference standards disclaimer: Listed as reference standards only, never certificates held by MutualMetal. The applicable standard, material grade, fabrication tolerances, and quality documentation are confirmed per product and project.
Product standards vs technical standards
In industrial metal supply and contract specifications, distinguishing between a product standard and cross-cutting technical standards is essential. Product standards govern finished article definitions, while technical standards define inputs, finishes, and verification procedures.
A product standard defines the finished metal product itself: designation systems, dimensional configurations, geometric tolerances, unit weight, surface quality, marking, packaging, and lot inspection rules.
- YB/T 4001.1 (钢格栅板 / Steel grating)
- ASTM F1267 (钢板网 / Steel expanded metal)
- GB/T 33974 / ASTM A786 (花纹钢板 / Checkered plate)
- ISO 10630 / ISO 7805 (工业筛板 / Plate screens)
- ANSI/NAAMM MBG 531 (钢格板技术规范 / Bar grating manual)
Note: Product standards typically do not redefine steel chemistry or galvanizing chemistry; they cite applicable technical standards instead.
Technical standards apply across categories: base structural steel grades, corrosion-protective hot-dip zinc coatings, mechanical tensile & bend testing, salt spray methods, general tolerances, and safety design criteria.
- ASTM A36 / GB/T 700 / EN 10025-2 (碳素结构钢母材)
- ASTM A123 / ISO 1461 / GB/T 13912 (热浸镀锌层标准)
- ISO 6892-1 / ASTM E8 / GB/T 228.1 (金属室温拉伸试验)
- ASTM B117 / ISO 9227 / GB/T 10125 (人工气氛盐雾试验)
- ISO 14122-2 / GB 4053 (工业通道及平台安全设计)
Note: Technical standards are shared across perforated, expanded, grating, and checkered products, underpinning material test reports (MTR).
How product & technical standards connect
Product Standard
Defines finished geometry, mesh designation, tolerances, and inspection criteria (e.g. YB/T 4001.1, ASTM F1267, DIN 59220).
Base Material Standard
Specifies chemistry, tensile & yield limits of carbon steel, stainless, or aluminum (e.g. ASTM A36, GB/T 700 Q235B, EN 10025-2 S235JR).
Coating & Finishing Standard
Defines batch hot-dip galvanizing mass and adherence on fabricated articles (e.g. ASTM A123, ISO 1461, GB/T 13912).
Testing & Structural Safety
Verifies tensile/bend properties, salt spray resistance, and walkway safety design (e.g. ISO 6892-1, ASTM B117, ISO 14122-2).
Product standards comparison
Cross-compare finished product standards across GB, ASTM, ANSI, ISO, and EN/DIN for all four primary metal categories. Systems without a dedicated product standard feature plain explanatory scope notes.
| Category | GBChina Chinese National Standards (GB) | ASTMUnited States / International ASTM International | ANSIUnited States ANSI / NAAMM / EMMA | ISOInternational International Organization for Standardization | ENEurope / Germany European Standards (EN / DIN) |
|---|---|---|---|---|---|
| Perforated Metal冲孔金属网 |
Applies to test-sieve perforated plate; general perforated metal is specified per drawing and project. |
Covers perforated-plate sieves for testing purposes; architectural and industrial patterns are coordinated to customer drawings. | No direct product standard in this series; material and fabrication requirements are referenced through ASTM material standards. |
ISO 7805, ISO 10630 and ISO 3310-2 define industrial plate screens and test sieves; architectural perforated sheets reference general technical and material standards. | No direct product standard listed in European standards for general-purpose perforated metal; base material and general fabrication drawings govern. |
| Expanded Metal钢板网 |
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| No direct product standard in this series; ISO base structural steel sheet and general technical standards apply as technical references. |
Historical DIN standard used as an industry dimension reference; check current validity with the publisher before specification. |
| Bar Grating钢格板 |
YB/T 4001.1 is the primary grating product standard; GB 4053.2 and GB 4053.3 serve as platform and stair tread safety application references. | No direct ASTM product standard for finished bar grating; bar grating relies on ASTM A36 for base material and ASTM A123 for hot-dip galvanizing, alongside ANSI/NAAMM manufacturing standards. |
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ISO 14122-2 and 14122-3 are machinery platform and walkway safety access references, not dedicated grating product standards. |
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| Checkered Plate花纹钢板 |
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| No direct product standard in this series; floor plate patterns and materials reference ASTM standards (e.g. ASTM A786), with walking surface safety referencing ANSI/ASSP A1264.2. |
No dedicated ISO checkered plate product standard; ISO 14122-2 applies as an application safety reference for walkway surfaces. |
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Test sieves — Technical requirements and testing — Part 2: Test sieves of perforated metal plate (applies to test-sieve perforated plate)
Applies to test-sieve perforated plate; general perforated metal is specified per drawing and project.
Perforated-plate sieves for testing purposes
Covers perforated-plate sieves for testing purposes; architectural and industrial patterns are coordinated to customer drawings.
No direct product standard in this series; material and fabrication requirements are referenced through ASTM material standards.
Industrial plate screens — Part 1: Thickness of 3 mm and above
Industrial plate screens — Part 2: Thickness below 3 mm
Industrial plate screens — Specifications and test methods
Test sieves — Technical requirements and testing — Part 2: Test sieves of perforated metal plate
ISO 7805, ISO 10630 and ISO 3310-2 define industrial plate screens and test sieves; architectural perforated sheets reference general technical and material standards.
No direct product standard listed in European standards for general-purpose perforated metal; base material and general fabrication drawings govern.
Expanded steel net (steel expanded metal)
Expanded steel (steel expanded metal)
Metal, expanded, steel
Expanded metal product standard
No direct product standard in this series; ISO base structural steel sheet and general technical standards apply as technical references.
Expanded metal — dimensions and types
Historical DIN standard used as an industry dimension reference; check current validity with the publisher before specification.
Steel grating and accessories — Part 1: Steel grating
Safety requirements for fixed steel ladders and platforms — Part 2: Steel inclined ladders (reference for stair-tread applications)
Safety requirements for fixed steel ladders and platforms — Part 3: Industrial guard rails and steel platforms (reference for platform applications)
YB/T 4001.1 is the primary grating product standard; GB 4053.2 and GB 4053.3 serve as platform and stair tread safety application references.
No direct ASTM product standard for finished bar grating; bar grating relies on ASTM A36 for base material and ASTM A123 for hot-dip galvanizing, alongside ANSI/NAAMM manufacturing standards.
Metal bar grating specifications and load tables
Heavy duty metal bar grating
Welding specifications for fabrication of steel, aluminum and stainless steel bar grating
Metal bar grating engineering design manual
Safety of machinery — Permanent means of access to machinery — Part 2: Working platforms and walkways
Safety of machinery — Permanent means of access to machinery — Part 3: Stairs, stepladders and guard-rails
ISO 14122-2 and 14122-3 are machinery platform and walkway safety access references, not dedicated grating product standards.
Gratings — dimensions
Safety of machinery — working platforms and walkways
Stairs, stepladders and guard-rails
Hot-rolled checkered steel plate and strip
Rolled steel floor plates
Aluminum-alloy rolled tread plate
No direct product standard in this series; floor plate patterns and materials reference ASTM standards (e.g. ASTM A786), with walking surface safety referencing ANSI/ASSP A1264.2.
Safety of machinery — Permanent means of access to machinery — Part 2: Working platforms and walkways
No dedicated ISO checkered plate product standard; ISO 14122-2 applies as an application safety reference for walkway surfaces.
Floor plates, rolled — dimensions
Reading this table: scope & nuances
- 01.
General-purpose, architectural and decorative perforated metal has no single universal product standard. ISO 7805 / ISO 10630 / ISO 3310-2 / GB/T 6003.2 / ASTM E323 relate to industrial plate screens and test sieves. Hole size, pitch, open area, and sheet thickness are specified per drawing / project.
- 02.
Fish-eye and crocodile-mouth anti-slip plates are punched, formed profile sheets. They are not hot-rolled checkered plate, so GB/T 33974, ASTM A786, DIN 59220 do not define them. They reference base-material and coating standards; profile and tolerances are confirmed per project and producing factory.
- 03.
Flattened expanded metal is a rolled variant of standard expanded metal; whether a given expanded-metal standard explicitly covers the flattened type is confirmed per project.
- 04.
Riveted, press-locked, and welded bar grating: ANSI/NAAMM MBG 531 covers general construction types; coverage of each construction type under YB/T 4001.1 and DIN 24537 is confirmed per project.
- 05.
ISO 14122 and GB 4053 series are machinery platform and access walkway safety standards. They serve as engineering application references for grating and checkered plate, not product manufacturing standards.
Technical standards comparison
Technical standards are shared across all four product categories: base structural steel grades, corrosion coatings, testing procedures, dimensional tolerances & inspection documentation, and access safety design.
| Technical Role | GBChina Chinese National Standards (GB) | ASTMUnited States / International ASTM International | ANSIUnited States ANSI / NAAMM / EMMA | ISOInternational International Organization for Standardization | ENEurope / Germany European Standards (EN / DIN) |
|---|---|---|---|---|---|
Base Material Specifications for carbon structural steel, stainless steel sheet, and aluminum alloys used across all four categories. | ASTM A36:Structural carbon steel, bar and plate material ASTM A6/A6M:General requirements for rolled structural steel bars, plates, shapes, and sheet piling ASTM A1011:Hot-rolled carbon steel sheet and strip +5 more standards | –none listed | EN 10025-2:Non-alloy structural steels — technical delivery conditions EN 10088-2:Stainless steels — flat products for general purposes EN 485-2:Aluminium and aluminium alloys — sheet, strip and plate, mechanical properties +1 more standards | ||
Coating & Galvanizing Hot-dip galvanizing and zinc coating standards for batch-fabricated assemblies and continuous mill coils. | GB/T 13912:Hot-dip galvanized coatings on metal products — technical requirements and test methods GB/T 2518:Continuously hot-dip zinc-coated steel sheet and strip | ASTM A123/A123M:Zinc (hot-dip galvanized) coatings on iron and steel products ASTM A153/A153M:Zinc coating (hot-dip) on iron and steel hardware ASTM A653/A653M:Steel sheet, zinc-coated (galvanized) or zinc-iron alloy-coated by the hot-dip process +1 more standards | –none listed | ISO 1461:Hot-dip galvanized coatings on fabricated iron and steel articles — specifications and test methods | EN ISO 1461:Hot-dip galvanized coatings on fabricated iron and steel articles |
Testing Methods Standardized testing procedures for tensile verification, bend performance, and artificial accelerated salt spray exposure. | GB/T 228.1:Metallic materials — Tensile testing — Part 1: Method of test at room temperature GB/T 10125:Corrosion tests in artificial atmospheres — Salt spray tests | ASTM A370:Mechanical testing of steel products (tensile, bend, hardness, and impact) ASTM E8/E8M:Tension testing of metallic materials ASTM B117:Operating salt spray (fog) apparatus (accelerated corrosion testing) | –none listed | ISO 6892-1:Metallic materials — Tensile testing — Part 1: Method of test at room temperature ISO 9227:Corrosion tests in artificial atmospheres — Salt spray tests ISO 7438:Metallic materials — Bend test | EN ISO 6892-1:Tensile testing of metallic materials at room temperature EN ISO 9227:Corrosion tests in artificial atmospheres — salt spray |
Tolerances & Documentation General dimensional tolerances, mill inspection documentation types, and structural execution rules. | –none listed | –none listed | –none listed | ISO 2768:General tolerances — Part 1: Tolerances for linear and angular dimensions | EN 10143:Continuously hot-dip coated steel sheet and strip — tolerances on dimensions and shape EN 10204:Metallic products — types of inspection documents; 3.1 / 3.2 availability depends on the product and producing factory EN 1090-2:Execution of steel structures — technical requirements |
Safety & Structural Design Access walkway criteria, industrial platforms, stair treads, load/deflection calculations, and slip-resistance references. | –none listed | ANSI/NAAMM MBG 534:Metal bar grating engineering design manual (load & deflection criteria) ANSI/ASSP A1264.2:Provision of slip resistance on walking-working surfaces | ISO 14122-2:Safety of machinery — Permanent means of access to machinery — Part 2: Working platforms and walkways ISO 14122-3:Safety of machinery — Permanent means of access to machinery — Part 3: Stairs, stepladders and guard-rails | EN ISO 14122-2:Safety of machinery — working platforms and walkways EN ISO 14122-3:Stairs, stepladders and guard-rails |
Specifications for carbon structural steel, stainless steel sheet, and aluminum alloys used across all four categories.
GB/T 700:Carbon structural steel
GB/T 699:Quality carbon structural steel
GB/T 3274:Hot-rolled carbon structural and low-alloy steel plate and strip
GB/T 4237:Hot-rolled stainless steel plate and strip
GB/T 3280:Cold-rolled stainless steel plate and strip
GB/T 3880:Wrought aluminium and aluminium alloy plate and strip
GB/T 13304:Steel classification
GB/T 4171:Atmospheric corrosion resisting structural steel (weathering steel)
ASTM A36:Structural carbon steel, bar and plate material
ASTM A6/A6M:General requirements for rolled structural steel bars, plates, shapes, and sheet piling
ASTM A1011:Hot-rolled carbon steel sheet and strip
ASTM A1008:Cold-rolled carbon steel sheet
ASTM A240/A240M:Chromium and chromium-nickel stainless steel plate, sheet, and strip
ASTM A480/A480M:General requirements for flat-rolled stainless and heat-resisting steel plate, sheet, and strip
ASTM B209/B209M:Aluminum and aluminum-alloy flat sheet, coiled sheet, and plate
ASTM A588:Atmospheric corrosion-resistant high-strength low-alloy structural steel
EN 10025-2:Non-alloy structural steels — technical delivery conditions
EN 10088-2:Stainless steels — flat products for general purposes
EN 485-2:Aluminium and aluminium alloys — sheet, strip and plate, mechanical properties
EN 10025-5:Structural steels with improved atmospheric corrosion resistance
Hot-dip galvanizing and zinc coating standards for batch-fabricated assemblies and continuous mill coils.
GB/T 13912:Hot-dip galvanized coatings on metal products — technical requirements and test methods
GB/T 2518:Continuously hot-dip zinc-coated steel sheet and strip
ASTM A123/A123M:Zinc (hot-dip galvanized) coatings on iron and steel products
ASTM A153/A153M:Zinc coating (hot-dip) on iron and steel hardware
ASTM A653/A653M:Steel sheet, zinc-coated (galvanized) or zinc-iron alloy-coated by the hot-dip process
ASTM A90/A90M:Weight [mass] of coating on iron and steel articles with zinc or zinc-alloy coatings, test method
ISO 1461:Hot-dip galvanized coatings on fabricated iron and steel articles — specifications and test methods
EN ISO 1461:Hot-dip galvanized coatings on fabricated iron and steel articles
Standardized testing procedures for tensile verification, bend performance, and artificial accelerated salt spray exposure.
GB/T 228.1:Metallic materials — Tensile testing — Part 1: Method of test at room temperature
GB/T 10125:Corrosion tests in artificial atmospheres — Salt spray tests
ASTM A370:Mechanical testing of steel products (tensile, bend, hardness, and impact)
ASTM E8/E8M:Tension testing of metallic materials
ASTM B117:Operating salt spray (fog) apparatus (accelerated corrosion testing)
ISO 6892-1:Metallic materials — Tensile testing — Part 1: Method of test at room temperature
ISO 9227:Corrosion tests in artificial atmospheres — Salt spray tests
ISO 7438:Metallic materials — Bend test
EN ISO 6892-1:Tensile testing of metallic materials at room temperature
EN ISO 9227:Corrosion tests in artificial atmospheres — salt spray
General dimensional tolerances, mill inspection documentation types, and structural execution rules.
ISO 2768:General tolerances — Part 1: Tolerances for linear and angular dimensions
EN 10143:Continuously hot-dip coated steel sheet and strip — tolerances on dimensions and shape
EN 10204:Metallic products — types of inspection documents; 3.1 / 3.2 availability depends on the product and producing factory
EN 1090-2:Execution of steel structures — technical requirements
Access walkway criteria, industrial platforms, stair treads, load/deflection calculations, and slip-resistance references.
ANSI/NAAMM MBG 534:Metal bar grating engineering design manual (load & deflection criteria)
ANSI/ASSP A1264.2:Provision of slip resistance on walking-working surfaces
ISO 14122-2:Safety of machinery — Permanent means of access to machinery — Part 2: Working platforms and walkways
ISO 14122-3:Safety of machinery — Permanent means of access to machinery — Part 3: Stairs, stepladders and guard-rails
EN ISO 14122-2:Safety of machinery — working platforms and walkways
EN ISO 14122-3:Stairs, stepladders and guard-rails
Note: ISO 9001, ISO 14001, and ISO 45001 are organizational management system standards, not metal material or product manufacturing standards, and are intentionally omitted from this technical map. Inspection documents (e.g. EN 10204 3.1) are available on request, depending on the product and producing factory.
Similarities and differences
Detailed technical comparison of specifications often assumed to be interchangeable. All mappings are provided as engineering reference only, not identical, confirmed per project.
- Commonly treated in trade as comparable strength classes (approximately 235–250 MPa minimum yield strength).
- Standard base metal choice for general-purpose bar grating, checkered plate, and punched/expanded sheets.
- They are not identical: carbon and manganese chemistry limits differ.
- Thickness-dependent yield reduction rules and Charpy V-notch impact testing requirements (e.g. 20°C for S235JR) are standard-specific.
- Reference only, not identical, confirmed per project.
- Represent the same fundamental austenitic 18-8 (304) and molybdenum-bearing 18-12-2 (316) alloy families.
- Delivers comparable corrosion resistance in architectural, filtration, and marine industrial applications.
- Designation systems differ: AISI/ASTM grade numbers (304, 316) vs Chinese chemical designations (06Cr19Ni10, 06Cr17Ni12Mo2) vs European material numbers (1.4301, 1.4401).
- Tightness of nickel/chromium windows and specified mechanical limits vary slightly per regional specification.
- Reference only, not identical, confirmed per project.
- All three standards cover flat rolled sheet and plate for structural, decorative, and perforated applications.
- Share the common 4-digit alloy numbering system (e.g. 1050, 3003, 5052, 6061) and standard temper designations (e.g. H14, H22, T6).
- Mechanical property limits (tensile, yield, elongation) for the same temper code differ slightly across standards.
- Dimensional thickness tolerances and flatness limits follow different regional tables.
- Reference only, not identical, confirmed per project.
- All cover zinc coatings applied by batch immersion after fabrication (welding, cutting, shearing) of iron and steel articles.
- Define minimum average coating thickness / mass according to base steel material thickness categories.
- ASTM A123 uses dual US customary units (oz/ft²) alongside metric (µm), whereas ISO 1461 and GB/T 13912 use metric µm and g/m².
- GB/T 13912 and ISO 1461 are very closely harmonized; ASTM A123 specifies thickness categories with slightly different steel thickness tier breaks.
- ASTM A653 and GB/T 2518 are for continuous pre-galvanized sheet (a completely different mill process) and are not substitutes for A123 / ISO 1461.
- Coating values are confirmed per project.
- Standardized destructive testing to verify yield strength, ultimate tensile strength, and percentage elongation after fracture.
- GB/T 228.1 is closely aligned with ISO 6892-1 in test principles and rate control methods.
- ASTM E8/E8M and A370 specify different specimen geometries, gauge length proportional rules, and test rate definitions.
- Tensile values obtained from different testing standards may vary slightly; reference only, confirmed per project.
- Define neutral salt spray (NSS) chamber operating conditions (5% NaCl solution, 35°C temperature) to evaluate coating corrosion resistance.
- Chamber calibration, specimen placement angles, and corrosion evaluation criteria (red rust appearance vs weight loss) differ between bodies.
- A salt-spray hour figure is an accelerated laboratory comparative metric, not a direct measure of outdoor service life in years.
- Reference only, not identical, confirmed per project.
- Provide standardized shorthand notation to represent pitch, thickness, mesh size, and bar geometry.
- NAAMM grating codes (e.g. 19-W-4, 15-W-4) use bearing bar spacing in sixteenths of an inch (19/16" ≈ 30.16 mm), whereas YB/T 4001.1 and DIN 24537 use metric millimeter spacing (e.g. 30/100, 30/50).
- Expanded metal in ASTM F1267 uses mesh weight / opening codes, while DIN 791 and GB/T 33275 use metric diamond dimensions (LWD × SWD × strand width × thickness).
- Metric vs inch conversions must be calculated precisely per project drawing.
- Atmospheric corrosion-resistant structural steels formulated with Cu, Cr, Ni, and P to develop a protective patina.
- Used in architectural perforated facades, decorative panels, and outdoor unpainted steel structures.
- Alloy chemistry windows and specified impact toughness grades (e.g. A588 Grade A/B vs GB/T 4171 Q355NH vs EN 10025-5 S355J2W) are not interchangeable without engineering verification.
- Reference only, confirmed per project and producing factory.
- Provide criteria for evaluating walking-working surfaces in industrial stairways, walkways, and catwalks.
- Ratings such as DIN 51130 R-classes (R10–R13) or ANSI/ASSP A1264.2 coefficient of friction criteria are test results for a specific surface profile, not intrinsic properties defined by rolled checkered plate standards (ASTM A786, GB/T 33974).
- Plate product standards define pattern dimensions, not friction ratings; slip resistance is confirmed per project.
- Address occupational safety access to industrial machinery and plants: minimum clear width, maximum grating aperture to prevent tools falling, stair tread rise/going, and guard-rail height.
- These are design/safety codes, not grating product standards. They dictate WHICH grating bar spacing or checkered plate thickness is chosen for an installation.
- Opening restrictions (e.g. 20 mm / 35 mm ball-pass rules under ISO 14122-2) must be confirmed per local building/safety codes.
Standards map gaps & empty cells explained
Not every international standards body maintains an individual finished product standard for every metal type. Understanding these boundaries prevents costly technical misalignments:
ISO has no expanded-metal product standard
ISO does not publish a dedicated product standard for expanded metal. Technical references default to ISO structural steel and galvanizing standards.
ANSI lacks perforated & checkered plate standards
ANSI does not define perforated metal or checkered plate. US projects reference ASTM A786 (floor plate), ASTM material sheets, and ANSI/ASSP A1264.2 slip resistance guidelines.
ASTM has no direct bar grating product standard
ASTM governs ASTM A36 (bar steel) and ASTM A123 (galvanizing). Finished grating manufacturing and load design rely on ANSI/NAAMM MBG manuals.
No universal architectural perforated standard
Standards focus on industrial plate screens (ISO 10630) and sieves (GB/T 6003.2, ASTM E323). Architectural patterns are coordinated per customer drawings.
Anti-slip profile plates are punched sheets, not rolled plate
Fish-eye and crocodile-mouth planks are cold-formed punched profile sheets, not hot-rolled floor plate. GB/T 33974, ASTM A786, and DIN 59220 do not define them. They reference base-metal and coating standards, with profile geometry and tolerances confirmed per project and producing factory.
Standards on product pages
Explore the four product categories, their specialized sub-product pages, and the five individual standard system reference pages across the Mutual Metal site.
Dedicated standards system pages
Direct links to detailed specifications and reference clauses by system.
Chinese National Standards (GB)
ASTM International
ANSI / NAAMM / EMMA
International Organization for Standardization
European Standards (EN / DIN)
Tell us your project standard and we will confirm what can be supplied
Whether your engineering drawings reference GB, ASTM/NAAMM, EN/DIN, or ISO, send your specification to our team. We will review applicable standards, confirm available material grades, and outline documentation options.
Reference standards disclaimer: Standards are listed as reference standards only, never certificates held by MutualMetal. The applicable standard, material grade, tolerances, and documentation are confirmed for each product and project.
Documentation & quote timing: Material documentation (MTR, inspection certificates) is available on request, depending on the product and producing factory. Quotation and delivery schedules are confirmed per project.