I-beams are long steel bars with an I-shaped cross-section, primarily formed using hot rolling processes.
They are widely used in building structures, bridge engineering, equipment supports, and various load-bearing columns due to their high load-bearing capacity and stability.
| Product Specifications | ||||||
| Cross-section Shapes | I-shaped | |||||
| Common Dimensions | H100*100-H400*400H150*75 -H900*300 | |||||
| Standard Lengths | 6m, 9m, 12m or as per customer requirements | |||||
| Main Grades | A36、St37、S235J0、S235J2，St52，16mn，S355JOQ195,Q215,Q235B,Q345B,S235JR，S355JR，S355，SS440，SM400A，SM400BA572,GR50,GR60,SS540 | |||||
| Technical | Hot rolling, welding | |||||
| Surface | Galvanized, painted; or as per your requirements. | |||||
| Supply capacity | 1.6 million tons/year | |||||
| loading port | Any port in China | |||||
| Packaging | Standard packaging or customized according to customer requirements | |||||
| Payment methods | Telegraphic transfer/Letter of Credit | |||||
|
|
|
|
|
|
|
|
| Production range | ||||||
| Property & (Critical Factor) | USA (ASTM) | Europe (EN) | Japan (JIS) | China(GB) | Technical Guidance | |
| Standard Designation | W-Shape (e.g. w8x31) |
IPE/HEA/HEB (e.g. HEA 300) |
H-Shape (e.g.H-200x200) |
HW/HM/HN (e.g., HW 200x200) |
W: Wide flange IPE: European parallel flange HEA/HEB: European wide flange |
|
| Yield strength (MPa) | ≥250(A36) | ≥235 (S235JR) | ≥245 (SS400) | ≥235 (Q235B) |
High-strength option: ASTM A992 (2345 MPa) EN S355JR(≥355 MPa) |
|
| Tensile Strength (MPa) | 400-550(A36) | 360-510(S235JR) | 400-510(SS400） | 370-500(Q235B) | Minimum 1.25x yield strength | |
| Flange Thickness (mm) | 6.5-100+ | 8-120 | 6-100 | 8-110 | Thicker flanges = higher moment resistance | |
| Web Thickness (mm) | 4.0-75+ | 5-80 | 4.5-75 | 5-75 | Critical for shear reslistance | |
| Section Depth (mm) | 100-1200+ | 80-1200 | 100-900 | 100-1100 | Standard range:150-600mm | |
| Elongation at Break (%) | ≥18(A36) | ≥26 (S235JR) | ≥21(SS400) | ≥25 (Q235B) | ≥23% required for seismic zones | |
| Impact Toughness (J@°C) | Not req. (A36) | 27J@-20°C (J2) | 27J@ 0°C (SM490A) | 34J@ -20°C(Q355D) | Arctic projects: Specify-40°C grades | |
| Carbon Equivalent (Ceq) | ≤0.45 | ≤0.42 (S235JR) | ≤0.44(SM490A) | ≤0.44(Q355B) | Weldability threshold: Ceg < 0.50 | |
| Tolerances | ASTM A6 (h/1000) | EN10034(h/750) | JIS G3192 (h/500) | GB/T 11263 (h/800) | h= section depth | |
| Note: Other grades and precise chemical composition control can be provided according to your requirements. | ||||||
China United Steel
