I Beam and H Beam Structure Steel Profile

Aug 28, 2025

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GBT706-2016Hot-Rolled-H-Beam.pdf

info-1107-448

Wugang Hongxing Metal Material Co.,ltd.
chemical composition& Mechanics Performance
Type chemical composition(%) Mechanics Performance executive standard
C Si Mn P S Ceq yield strength tensile
strength
elongation longitudinal
impact
side knock T
≤16 >16-40   ≤40 >40-60  
Q235B ≤0.20 ≤0.35 ≤1.40 ≤0.045 ≤0.045   ≥235 ≥225   375-500 ≥26 ≥25   ≥27   20° GB/T700-2006
Q235D ≤0.17 ≤0.35 ≤1.40 ≤0.035 ≤0.035   ≥235 ≥225   375-500 ≥26 ≥25   ≥27   -20° GB/T700-2006
  ≤16 >16-35    
Q345B ≤0.20 ≤0.55 1.0-1.7 ≤0.040 ≤0.040   ≥345 ≥325   470-630 ≥21 ≥34   20° GB/T1591-1994
Q345C ≤0.20 ≤0.55 1.0-1.7 ≤0.035 ≤0.035   ≥345 ≥325   470-630 ≥22 ≥34   0° GB/T1591-1994
Q345D ≤0.18 ≤0.55 1.0-1.7 ≤0.030 ≤0.030   ≥345 ≥325   470-630 ≥22 ≥34   -20° GB/T1591-1994
Q345E ≤0.18 ≤0.55 1.0-1.7 ≤0.025 ≤0.025   ≥345 ≥325   470-630 ≥22 ≥27   -40° GB/T1591-1994
SS400 __ __ __ ≤0.050 ≤0.050   ≥245 ≥235   400-510 ≥21       JISG3101-2004
  5--16 16-50          
SM490A 0.14-0.20 0.20-0.40 1.30-1.58 ≤0.032 ≤0.030   ≥345 490-610 ≥17 ≥21         JISG3106-2004
SM490B 0.14-0.17 0.20-0.40 1.40-1.58 ≤0.030 ≤0.030   ≥345 490-611 ≥17 ≥21   ≥27   0° JISG3106-2004
SM490YB ≤0.20 ≤0.55 ≤1.6 ≤0.030 ≤0.025   ≥365 ≥355   490-610 ≥19 ≥27(0°) ≥34(-20°)   JISG3106-2004
SN490B 0.14-0.17 0.20-0.40 1.40-1.55 ≤0.025 ≤0.015   345-445 490-610 ≥17 ≥22   ≥27   0° JISG3135-2005
50B ≤0.22 ≤0.35 0.75-1.4 ≤0.030 ≤0.030   ≥345 ≥480 ≥22   ≥27   0°  
55C 0.14-0.22 ≤0.60 1.25-1.6 ≤0.040 ≤0.040 ≤0.42 ≤16 >16-25 >25-40 550-700 ≥19 ≥27   0° LGJX13-2006
≥450 ≥430 ≥415
43A 0.16-0.20 0.15-0.20 0.8-1.0 ≤0.025 ≤0.020   ≥275 430-580 ≥19         BS4360:1986
A36 ≤0.26 ≤0.40   ≤0.040 ≤0.050   ≥250 400-500 ≥20         ASTMA36/A36
  ≤16 >16-40     ≥3-40 >40-63          
S235JR 0.14-0.17 0.15-0.25 0.6-0.7 ≤0.035 ≤0.035 ≤0.35 ≥235 ≥225   360-510 ≥26 ≥25   ≥27   20° BSEN10025-2004
S235J0 0.14-0.17 0.15-0.25 0.6-0.7 ≤0.030 ≤0.030 ≤0.35 ≥235 ≥225   360-510 ≥24 ≥23   ≥27   0° BSEN10025-2004
S235J2 0.14-0.17 0.15-0.25 0.6-0.7 ≤0.025 ≤0.025 ≤0.35 ≥235 ≥225   360-510 ≥24 ≥23   ≥27   -20° BSEN10025-2004
S275JR 0.16-0.20 0.15-0.25 0.8-0.9 ≤0.035 ≤0.035 ≤0.40 ≥275 ≥265   410-560 ≥23 ≥22   ≥27   20° BSEN10025-2004
S275J0 0.15-0.18 0.15-0.25 0.6-0.7 ≤0.030 ≤0.030 ≤0.40 ≥275 ≥265   410-560 ≥21 ≥20   ≥27   0° BSEN10025-2004
S275J2 0.15-0.18 0.15-0.25 0.6-0.7 ≤0.025 ≤0.025 ≤0.40 ≥275 ≥265   410-560 ≥21 ≥20   ≥27   -20° BSEN10025-2004
S355JR 0.16-0.19 0.15-0.25 1.40-1.55 ≤0.035 ≤0.035 ≤0.47 ≥355 ≥345   470-630 ≥22 ≥21   ≥27   20° BSEN10025-2004
S355J0 0.16-0.19 0.15-0.25 1.40-1.55 ≤0.030 ≤0.030 ≤0.47 ≥355 ≥345   470-630 ≥20 ≥19   ≥27   0° BSEN10025-2004
S355J2 0.16-0.19 0.15-0.25 1.40-1.55 ≤0.025 ≤0.025 ≤0.47 ≥355 ≥345   470-630 ≥20 ≥19   ≥27   -20° BSEN10025-2004
S355K2 0.16-0.19 0.15-0.25 1.40-1.55 ≤0.025 ≤0.025 ≤0.47 ≥355 ≥345   470-630 ≥20 ≥19   ≥40   -20° BSEN10025-2004
LGWR345B 0.12-0.18 0.4-0.6 1.3-1.6 ≤0.045 ≤0.035   ≥345 470-630 ≥21 ≥34   0°  
LGWR345C 0.12-0.18 0.4-0.6 1.3-1.6 ≤0.045 ≤0.030   ≥345 470-630 ≥21 ≥34   -20°  
LGWR295D ≤0.10 0.4-0.6 1.3-1.6 ≤0.045 ≤0.025   ≥295 420-550 ≥25 ≥27   -40°  
Gr50 0.14-0.20 ≤0.40 1.10-1.45 ≤0.040 ≤0.040 ≤0.45 ≥345 ≥450 ≥18 ≥27   -20° LGJX11-2007
LG510LH 0.14-0.17 0.20-0.45 1.40-1.60 ≤0.025 ≤0.015   ≥400 510-660 ≥19 ≥34   0° LGJX20-2007
  ≥6 >6-14 >14-18        
Q450NQR1 0.05-0.10 0.25-0.35 1.20-1.40 ≤0.025 ≤0.008   ≥450 ≥550 ≥22 ≥20 ≥19 ≥60   -40° LGJX15-2008
LWFR490 ≤
0.12
0.20-
0.40
1.10-
1.40
≤
0.035
≤
0.015
  ≥345 ≥490 ≥18 ≥50   20° Q/LQB 133-2008

 

1.What are the specifications and Types of I-beams?

I-beams come in various specifications, mainly divided into ordinary I-beams and lightweight I-beams. Ordinary I-beams are generally used for load-bearing structures, while lightweight I-beams are suitable for lighter structures. Different specifications and types cater to different engineering needs; choosing the wrong one can be troublesome!

 

2.How to Choose the Right I-beam?

When choosing I-beams, the first thing to consider is Load Capacity . This should be determined based on the design load shown on the construction drawings. In addition, the material, surface treatment, and dimensions of the I-beam also need careful consideration. Simply put, choosing correctly ensures a stable project; choosing incorrectly, the consequences are predictable!

 

3.What are the main uses of I-beams?

I-beams have a wide range of uses, mainly in building structures, bridges, and mechanical equipment. Their strength and stability make them a crucial material for architects and engineers.

 

4.How are I-beams processed?

Processing I-beams usually requires processes such as cutting and welding. Although it seems simple, the technical requirements involved are actually quite high. Workers need rigorous training to operate the relevant equipment.

 

5.What affects the price of I-beams?

The price of I-beams is mainly affected by various factors such as raw material costs, market demand, and transportation costs. Especially during busy periods in the construction industry, prices may rise.