American Steel Structural Profiles ASTM A36 I beam
| Property | Specification / Details |
|---|---|
| Material Standard | ASTM A36 (general structural) |
| Yield Strength | ≥250 MPa (36 ksi); Tensile Strength ≥420 MPa |
| Dimensions | W8×21 to W24×104 (inches) |
| Length | Stock: 6 m & 12 m; Customized lengths available |
| Dimensional Tolerance | Conforms to GB/T 11263 or ASTM A6 |
| Quality Certification | EN 10204 3.1; SGS/BV third-party testing (tensile & bending) |
| Surface Finish | Hot-dip galvanizing, paint, etc.; customizable |
| Applications | Buildings, bridges, industrial structures, marine & transportation |
| Carbon Equivalent (Ceq) | ≤0.45% (ensures good weldability); AWS D1.1 welding code compatible |
| Surface Quality | No visible cracks, scars, or folds; flatness ≤2 mm/m; edge perpendicularity ≤1° |
| Property | Specification | Description |
|---|---|---|
| Yield Strength | ≥250 MPa (36 ksi) | Stress where material starts plastic deformation |
| Tensile Strength | 400–550 MPa (58–80 ksi) | Maximum stress before breaking under tension |
| Elongation | ≥20% | Plastic deformation over 200 mm gauge length |
| Hardness (Brinell) | 119–159 HB | Material hardness reference |
| Carbon (C) | ≤0.26% | Affects strength and weldability |
| Manganese (Mn) | 0.60–1.20% | Enhances strength and toughness |
| Sulfur (S) | ≤0.05% | Low sulfur ensures better toughness |
| Phosphorus (P) | ≤0.04% | Low phosphorus improves toughness |
| Silicon (Si) | ≤0.40% | Adds strength and aids deoxidation |
| Shape | Depth (in) | Flange Width (in) | Web Thickness (in) | Flange Thickness (in) | Weight (lb/ft) |
| W8×21（Sizes Available） | 8.06 | 8.03 | 0.23 | 0.36 | 21 |
| W8×24 | 8.06 | 8.03 | 0.26 | 0.44 | 24 |
| W10×26 | 10.02 | 6.75 | 0.23 | 0.38 | 26 |
| W10×30 | 10.05 | 6.75 | 0.28 | 0.44 | 30 |
| W12×35 | 12 | 8 | 0.26 | 0.44 | 35 |
| W12×40 | 12 | 8 | 0.3 | 0.5 | 40 |
| W14×43 | 14.02 | 10.02 | 0.26 | 0.44 | 43 |
| W14×48 | 14.02 | 10.03 | 0.3 | 0.5 | 48 |
| W16×50 | 16 | 10.03 | 0.28 | 0.5 | 50 |
| W16×57 | 16 | 10.03 | 0.3 | 0.56 | 57 |
| W18×60 | 18 | 11.02 | 0.3 | 0.56 | 60 |
| W18×64 | 18 | 11.03 | 0.32 | 0.62 | 64 |
| W21×68 | 21 | 12 | 0.3 | 0.62 | 68 |
| W21×76 | 21 | 12 | 0.34 | 0.69 | 76 |
| W24×84 | 24 | 12 | 0.34 | 0.75 | 84 |
| W24×104（Sizes Available） | 24 | 12 | 0.4 | 0.88 | 104 |
| Parameter | Typical Range | ASTM A6/A6M Tolerance | Notes |
|---|---|---|---|
| Depth (H) | 100–600 mm (4"–24") | ±3 mm (±1/8") | Must stay within nominal size tolerance |
| Flange Width (B) | 100–250 mm (4"–10") | ±3 mm (±1/8") | Uniform width ensures stable load-bearing |
| Web Thickness (tₙ) | 4–13 mm | ±10% or ±1 mm (whichever larger) | Affects shear capacity |
| Flange Thickness (t_f) | 6–20 mm | ±10% or ±1 mm (whichever larger) | Critical for bending strength |
| Length (L) | 6–12 m standard; custom 15–18 m | +50 / 0 mm | No minus tolerance allowed |
| Straightness | — | 1/1000 of length | e.g., max 12 mm camber for 12 m beam |
| Flange Squareness | — | ≤4% of flange width | Ensures proper welding/alignment |
| Twist | — | ≤4 mm/m | Important for long-span beams |
Hot Rolled Black:Standard state
Hot-dip galvanizing: ≥85μm (compliant with ASTM A123), salt spray test ≥500h
Coating: Liquid paint was evenly sprayed onto the surface of the steel beam using a pneumatic spray gun.
| Customization Category | Options | Description | MOQ |
|---|---|---|---|
| Dimension | Height (H), Flange Width (B), Web & Flange Thickness (t_w, t_f), Length (L) | Standard or non-standard sizes; cut-to-length service available | 20 tons |
| Surface Treatment | As-rolled (black), Sandblasting/Shot blasting, Anti-rust oil, Painting/Epoxy coating, Hot-dip galvanizing | Enhances corrosion resistance for different environments | 20 tons |
| Processing | Drilling, Slotting, Bevel cutting, Welding, End-face processing, Structural prefabrication | Fabrication per drawings; ideal for frames, beams, connections | 20 tons |
| Marking & Packaging | Custom marking, Bundling, Protective end plates, Waterproof wrapping, Container loading plan | Ensures safe handling and shipping, suitable for sea freight | 20 tons |
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Building Structures: Beams and columns for skyscrapers, factories, warehouses, and bridges, providing primary load-bearing support.
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Bridge Engineering: Main or secondary beams for vehicular and pedestrian bridges.
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Heavy Equipment & Industrial Support: Supports for large machinery and industrial platforms.
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Structural Strengthening: Reinforcement or modification of existing structures to improve load-bearing and bending resistance.
Building Structure
Bridge Engineering
Industrial Equipment Support
Structural Reinforcement
1) Branch Office - Spanish-speaking support, customs clearance assistance, etc.
2) Over 5,000 tons of stock in stock, with a wide variety of sizes
3) Inspected by authoritative organizations such as CCIC, SGS, BV, and TUV, with standard seaworthy packaging
Packing
Full-Fledged Protection: I-beams are bundled together with tarpaulin prepared by 2–3 desiccant packets; the heat-sealing, rainproof sheet blocks out moisture.
Safe Bundling: 12–16 mm steel straps around each bundle; good for 2–3 tons and US compatible lifting equipments.
Clear Labeling: Bilingual English/Spanish labels contain the grade, specifications, HS code, batch #, and a reference to the test report.
High Profile Protection: I-beams having a height of ≥800 mm were coated with an alignment oil and were wrapped two times with tarpaulin.
Delivery
Dependable Shipping: Cooperation with best carriers (MSK, MSC, COSCO etc.) to guarantee safety shipping.
Quality Control: ISO 9001 process; beams monitored closely from packaging to transport to ensure that they reach you intact, making for a hassle-free project.
Q: What are the standards for your I-beams in Central America?
A: Our I Beams are in compliace with the ASTM A36 & A572 Grade 50 which is most commonly used for Central America. We can also provide products that comply with local requirements (i.e., Mexico's NOM).
Q: How long time to delivery to Panama?
A: Transit Time Sea Freight from Tianjin Port to Colon Free Trade Zone 28–32 days wks. Production and delivery in total is 45–60 days. Urgent delivery can be arranged,too.
Q: Do you help with customs clearance?
A: Yes, our professional brokers will do the customs declaration, pay the tax & all the paper work to make sure the delivery smoothly.
Address
Bl20, Shanghecheng, Shuangjie Street, Beichen District, Tianjin, China
Phone
+86 13652091506
