01
ASTM A36 / A36M
Carbon structural steel
Standard specification for carbon structural steel used in riveted, bolted and welded construction.
Carbon Steel — Industrial Product
Black Coated Structural Steel Profile
Carbon structural steel profile supplied to ASTM A36 / EN 10025-2, black coated for corrosion resistance structural applications.
Indicative priceUSD 620 - 820 / MT
Lead time25 - 40 working days
01
Overview
Black Coated Structural Steel Profile combines low-carbon carbon steel with a hot rolled section and a black protective coating for reliable corrosion resistance and consistent dimensional control. The protective coating extends service life in outdoor and humid environments, making the profile suited to building structures, bridge infrastructure, industrial frames, transmission towers and protective structural applications. Supplied to ASTM A36 / EN 10025-2 with mill test certification per EN 10204 3.1, it supports global procurement across construction and infrastructure supply chains.
Key Characteristics
- 01 High Strength Provides high mechanical strength for demanding structural and industrial applications.
- 02 Good Toughness Provides good toughness and resistance to brittle fracture.
- 03 Good Weldability Supports welding using suitable procedures and compatible filler materials.
- 04 Standard Compliance Manufactured and supplied in accordance with the specified material and product standards.
- 05 Third-Party Inspection Third-party inspection can be arranged according to project and procurement requirements.
- 06 Traceable Documentation Supplied with documentation supporting material identification, chemical and mechanical traceability.
Typical Applications
- Building & Structural Structural and architectural components for commercial, industrial and high-rise buildings.
- Bridge & Infrastructure Structural components and plate applications in bridges, elevated structures and major infrastructure projects.
- Shipbuilding Hull, structural sections and piping for commercial and naval vessels.
- Railway & Rolling Stock Structural profiles, panels, underframe and other components for rail vehicles and locomotives.
02
Specifications
Numbers in this section correspond to the applicable product standard, formatted for direct use in enquiry and approval documents.
Product specification
- Material
- Carbon structural steel
- Grade
- A36 / S275JR / SS400
- UNS designation
- K02600
- Product form
- Structural profile
- Manufacturing method
- Per applicable standard
- Surface / condition
- Black Coated
- Cross-section
- Structural section (H/I/U/angle/channel on request)
Supply specifications
- Section type
- H-beam / I-beam / U-channel / angle on request
- Dimensions
- Per applicable standard / drawing
- Length
- 6 - 12 m; custom lengths on request
- Tolerance
- According to ASTM A6 / EN 10034
- Surface finish
- Black Coated
- Marking
- Standard mill marking; customer marking on request
Final supply is confirmed against the project drawing, purchase agreement and the mill test certificate.
Chemical composition
ElementRequirement
C <= 0.26 %
Si <= 0.40 %
Mn 0.60 - 0.90 %
P <= 0.040 %
S <= 0.050 %
Cu >= 0.20 % (when specified)
Fe Balance
Reference: applicable standard Structural Steel.
Mechanical properties
PropertyRequirement
Tensile strength 400 - 550 MPa
Yield strength (0.2% offset) >= 250 MPa
Elongation in 50 mm >= 23 %
Hardness <= 160 HB
Reference: applicable standard Structural Steel at room temperature.
Physical properties
PropertyTypical Value
Density 7.85 g/cm³
Elastic modulus 200 GPa
Thermal conductivity 50 W/m·K at 100°C
Electrical resistivity 0.17 μΩ·m
Specific heat 490 J/kg·K
Melting range 1,450 - 1,530 °C
Thermal expansion 11.6 x 10⁻⁶ /°C
Reference: Typical material values, Structural Steel.
Reference framework
Standards & documentation
The applicable product, dimensional and inspection standards should be confirmed together in the purchase specification.
02
EN 10025-2
Hot-rolled structural steel products
European reference for hot-rolled weldable structural steel products.
03
EN 10034
Structural steel I and H sections
European reference for tolerances on hot-rolled structural steel I and H sections.
04
JIS G3101
Rolled steel for general structure
Japanese reference for hot-rolled steel for general structure (SS400).
05
GB/T 706
Hot-rolled section steel
Chinese reference for hot-rolled equal-leg angle steel and other section steel.
06
EN 10204
Inspection documents
Defines inspection document types such as 3.1 and 3.2 for metallic product delivery.
03
Capability
From custom dimensions and precision sizing to heat treatment, surface finishing and product-specific processing, Wayland coordinates supply solutions tailored to your requirements.
Cutting
Cut-to-length and custom cutting according to order requirements.
Custom Dimensions
Non-standard dimensions, tolerances and dimensional combinations subject to product and mill capability.
Custom Profiles
Custom sections, profiles and non-standard shapes subject to product and mill capability.
Precision Sizing
Precision sizing and dimensional control for tighter tolerance requirements.
Cold Working
Cold drawing, cold sizing and other cold-working processes where required.
Surface Finishing
Surface treatment and finishing according to product, specification and application requirements.
Surface Coating & Plating
Coating, plating and other surface protection treatments according to product and application requirements.
Forming
Bending, forming and other shape modification according to drawings or order requirements.
Welding & Fabrication
Welding, fabrication and related assembly according to drawings and project requirements.
Customization
Custom dimensions, lengths, surface conditions, end preparations and inspection requirements can be supplied according to project specifications. Final capability is confirmed per enquiry based on grade, size range and applicable standard.
04
Quality
Inspection and documentation procedures are coordinated to meet the requirements of the applicable product standard and the project specification.
- Dimensional inspection Geometry, dimensions and tolerances against the applicable standard
- Visual and surface inspection Surface condition, marking and overall appearance
Documents
- Inspection Report
- Chemical analysis Per heat, against the applicable standard
- Mechanical testing Tensile, yield, elongation and hardness
- Non-destructive testing UT, eddy-current, hydrostatic or other NDT as applicable
- Positive material identification PMI for alloy verification when required
Documents
- Mill Test Certificate (MTC)
- Heat number traceability Heat number carried through MTC and product marking
- Third-party inspection coordination SGS / BV / TÜV on request
Documents
- Third-Party Inspection Report
- EN 10204 documentation 3.1 MTC standard; 3.2 on request
Documents
- EN 10204 3.1 Mill Test Certificate
- EN 10204 3.2 Inspection Certificate
- Certificate of Origin
05
Selection
A well-prepared specification is the most efficient defence against clarification cycles.
- 01 Select material & grade
Choose the material grade according to service conditions, performance requirements and applicable standards.
- 02 Define size & supply condition
Specify the required dimensions, surface condition, heat-treatment condition and delivery requirements.
- 03 Confirm standard & requirements
State the applicable product standard, dimensional standard and governing project specification.
- 04 Define inspection & documentation
Confirm inspection, testing, certification and documentation requirements before order placement.
Example procurement specification
A complete specification suitable for enquiry, covering product, technical requirements, certification and delivery terms.
- Product
- Black Coated Structural Steel Profile
- Grade
- A36
- Standard
- ASTM A36
- Dimensions
- H200 × 200 × 8 × 12 mm × Length 12000 mm; Black Primer Coated
- Condition
- Hot Rolled; Black Primer Coated; Anti-Rust
- Certification
- EN 10204 3.1 Mill Test Certificate
- Quantity
- 20 Metric Tons
- Packaging
- Seaworthy Export Packing
- Incoterm
- CIF Hamburg
06
Logistics
From mill dispatch to destination port, each stage is coordinated with the nominated forwarder and documented against the purchase specification.
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Packaging
Export-suitable packaging with surface and edge protection.
Bundled, wrapped or crated according to product form and transport mode. Outer surface protected with weather-resistant material; ends and edges shielded against transit damage.
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Loading
FCL container for standard sizes; break bulk for oversized cargo.
Container loading via nominated forwarder. LCL and dimensions outside container allowance coordinated against the mill dispatch schedule.
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Documentation
Commercial invoice, packing list and certificate of origin.
Mill documentation travels with the shipment. EN 10204 3.1 / 3.2 certificates and third-party inspection reports provided as per purchase specification.
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Shipment
Sea freight as standard; alternative routes on request.
FCL / LCL container shipment or break bulk for oversized dimensions. Logistics coordinated through the nominated forwarder.
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Delivery
FOB · CFR · CIF · FCA · EXW arrangements available.
Incoterm 2020. Port of loading: Shanghai / Ningbo / Shenzhen. Final destination and terms confirmed per enquiry.
07
FAQ
Most enquiries reduce to a small set of recurring technical questions.
01 What is black coated structural steel profile?
Black coated structural profiles are hot-rolled carbon steel sections (I, H, channel, angle) with a protective black anti-corrosion coating applied for storage and shipment protection.
02 What are typical applications?
Black coated profiles are widely used for building frames, industrial structures, supports, brackets, mezzanines and machinery bases.
03 What profile shapes are available?
I-beams (IPE / IPN / W-shapes), H-beams (HEA / HEB / HEM), channels (UPE / UPN), equal and unequal angles, and T-sections.
04 What is the difference between black coated and hot-dip galvanized?
Black coating is a thin protective paint or oil coating for storage. Hot-dip galvanizing is a thick zinc metallurgical coating for long-term corrosion protection.
05 What standards cover profile tolerances?
EN 10034 (I / H sections), EN 10056 (angles), EN 10279 (channels) define dimensional and shape tolerances for hot-rolled structural sections.