American Steel Structural Profiles ASTM A36 I beam
| Material Standard | ASTM A36 standard (general structural) | Yield Strength | A36: Yield strength ≥ 250 MPa (36 ksi), tensile strength ≥ 420 MPa |
| Dimensions | W8×21 to W24×104 (inches) | Length | Stock for 6 m & 12 m, Customized Length |
| Dimensional Tolerance | Conforms to GB/T 11263 or ASTM A6 | Quality Certification | EN 10204 3.1 material certification & SGS/BV third-party testing report (tensile and bending tests) |
| Surface Finish | Hot-dip galvanizing, paint, etc. Customizable | Applications | Building Construction,Bridges,Industrial Structures,Marine and Transportation,Miscellaneous |
| Carbon Equivalent | Ceq≤0.45%(Ensure good weldability) Explicitly labeled "Compatible with AWS D1.1 welding code" |
Surface quality | No visible cracks, scars, or folds. Surface flatness: ≤2mm/m Edge perpendicularity: ≤1° |
| Property | ASTM A992 | ASTM A36 | Advantage / Notes |
| Yield Strength | 50 ksi / 345 MPa | 36 ksi / 250 MPa | A992: +39% higher |
| Tensile Strength | 65 ksi / 450 MPa | 58 ksi / 400 MPa | A992: +12% higher |
| Elongation | 18% (200 mm gauge) | 21% (50 mm gauge) | A36: better ductility |
| Weldability | Excellent (Ceq <0.45%) | Good | Both suitable for structural welding |
| 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 | Common Range | ASTM A6/A6M Tolerance | Notes |
|---|---|---|---|
| Depth (H) | 100–600 mm (4"–24") | ±3 mm (±1/8") | Actual depth must not exceed tolerance from nominal size |
| Flange Width (B) | 100–250 mm (4"–10") | ±3 mm (±1/8") | Width uniformity ensures stable load-bearing |
| Web Thickness (t_w) | 4–13 mm | ±10% or ±1 mm (whichever is larger) | Web thickness tolerances affect shear capacity |
| Flange Thickness (t_f) | 6–20 mm | ±10% or ±1 mm (whichever is larger) | Critical for bending strength |
| Length (L) | 6–12 m standard; custom up to 15–18 m | +50 / 0 mm | No minus tolerance allowed |
| Straightness | — | 1/1000 of length | Example: max 12 mm camber for 12 m beam |
| Flange Squareness | — | ≤ 4% of flange width | Ensures proper welding and alignment |
| Twist | — | ≤ 4 mm per meter | Important for long-span beams |
Hot Rolled Black:Standard state
Hot-dip galvanizing: ≥85μm (compliant with ASTM A123), salt spray test ≥500h
Coating: Epoxy primer + topcoat, dry film thickness ≥ 60μm
| Customization Category | Customizable Options | Description | Minimum Order Quantity (MOQ) |
|---|---|---|---|
| Dimension Customization | Height (H), Flange Width (B), Web Thickness (t_w), Flange Thickness (t_f), Length (L) | Standard or non-standard sizes available; cut-to-length service supported | 20 tons |
| Surface Treatment Customization | As-rolled (black), Sandblasting / Shot blasting, Anti-rust oil, Painting / Epoxy coating, Hot-dip galvanizing | Improves corrosion resistance for different environments | 20 tons |
| Processing Customization | Drilling, Slotting, Bevel cutting, Welding, End-face processing, Structural prefabrication | Fabricated according to drawings; suitable for frames, beams, and connection components | 20 tons |
| Marking & Packaging Customization | Customized marking, Bundling method, Protective end plates, Waterproof wrapping, Container loading plan | Suitable for sea freight and container loading; ensures safe handling | 20 tons |
Building Structure : Beams and columns used in skyscrapers, factories, warehouses, bridges, etc., that provide the primary load-bearing support.
Bridge Engineering: Used as primary or secondary beams in bridges for vehicular and pedestrian traffic.
Heavy Equipment – Large Machinery – Industrial Support :Heavy Equipment, Large Machinery and Industrial Platforms.
Structural Strengthening : For Strengthening or Altering existing building structures to enhance their bending resistance and load carrying ability.
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
Empty Comprehensive Protection & Packaging: Each package of I-beams is tightly wrapped in tarpaulin with 2-3 desiccant packs inside each pack and tied under heat-sealed, rainproof layer to keep it away from getting wet.
Secure Bundling: Straps of 12–16 mm Φ steel bands are used per the bundle which are made to be fitted to lifting equipment at US ports, and it is safe to put 2–3 tons per bundle.
Clear compliance labeling: Bilingual (English/Spanish) labels are affixed to each bundle with critical information such as material grade, specifications, HS code, batch #, and test report reference.
Special Treatment for Large size Profile: For I-beam with section height ≥800mm, the steel surface is applied with industrial alignment oil and covered with tarpaulin for double protection.
DELIVERY
Strong and reliable shipping agency: we have established strong cooperation with most of leading ship lines, such as MSK, MSC, COSCO, ect, that could guarantee the transportation.
Quality Assurance:Our process are in accordance with ISO 9001 quality management standard. From packaging material selection to transport allocation all through the entire process, every step is carefully monitored to ensure that the I-beams are received in perfect condition, laying a solid foundation for you to have a good start and keep running smoothly throughout the project.
Q: What standards are your I beam steel for Central America markets?
A: Our products are in accordance with ASTM A36, A572 Grade 50 standards which is the standard in Central America. We can also supply products qualified to local standards such as the NOM of mexico.
Q: How long is the delivery time to Panama?
A: From Tianjin Port to Colon Free Trade Zone, it takes about 28-32 days by sea freight, and the whole delivery time is 45-60 days including production and clearance. We also offer expedited shipping options.
Q: You help with customs clearance?
A: Yes, we have professional customs brokers in central America, we will assist customers to do the customs declarations, taxes and other procedures and the delivery would be smooth.
Address
Bl20, Shanghecheng, Shuangjie Street, Beichen District, Tianjin, China
Phone
+86 13652091506
