Model No.: GB Q235B Q275B Q355B
Brand: Houming
Place Of Origin: China
Material: Q235b, Q235, Q345, Q345b
Production Process: Welded, Hot Rolled
Tolerance: ±1%
Processing Service: Welding, Decoiling, Bending, Punching, Cutting
Product Name: GB H beams steel
Transportation: Ocean,Land
Place of Origin: China
Port: qingdao,shanghai,tianjin
Payment Type: D/A,D/P,L/C,T/T
Incoterm: FOB,CFR,CIF,EXW
Q235B/GB-T34199
Hot-rolled H section steel for electrified railway pillars
H beam steel (shaped steel ) is divided into three categories according to specifications and models, and their codes are as follows:
a) Wide flange H- beam steel (shaped steel ) HW (W is the English abbreviation for Wide);
b) Middle flange H-beam steel (shaped steel ) HMC (M is the English abbreviation for Milldle);
c) Narrow flange H-beam steel ( shaped steel ) HN (N is the English abbreviation for Narrow)
| Element | C | Si | Mn | P | S |
| Minimum | - | - | - | - | - |
| MAX | 0.2 | 0.35 | 1.4 | 0.045 | 0.045 |
Note: Carbon equivalent (C EV) should be calculated from the composition of the smelting analysis using the following formula:
CEV= C +Mn/6 + (Cr+ Mo+ V) /5 + (Ni+ Cu) /15
| Thickness (T) | Tensile strength | Yield point | Elongation or elongation after fracture | Impact energy absorption |
| t≤40 | 370~510 | t≤16;ReH≥235 ;16＜t≤40;ReH≥225 | A:≥26 | 20°C:≥227 |
①When yield is not obvious, Rp0.2 can be measured instead of the upper yield strength ReH.
②180° bending test:
Nominal thickness t≤16mm, d=2a; 16＜t≤40mm, d=3a
d=bending core diameter; a=specimen thickness
②180° bending test:
Nominal thickness t≤16mm, d=a; 16＜t≤40mm, d=a
d=bending core diameter; a=specimen thickness
The main beam of structural steel usually uses H-beam steel (shaped steel) as the skeleton of the steel structure, among which H-shaped steel 300*305*15*15 is a common specification in profiles. Q355B is a high-strength low-alloy structural steel. Its corrosion resistance and plasticity are its excellent properties, so it is widely used in the field of
Steel Plate structure manufacturing.
| China | Japan | USA | International Organization for Standardization | Germany | France | European standard | Russia | Sweden | U.K. |
| GB | JIS | ASTM | ISO | DIN EN/DIN | NF ENNF | EN | Number | GOST | SS | BS EN/BS |
| Q235A Q235B Q235D Q355A | SM400A SS400 | 1015 A283C GradeC GradeD SSGrade33 | E235B Fe360B | RSt37-2 St37-2 | E24-2 | S235JR
Fe360B① Fe360BFN① S235JRG2① | 1.0038(dubl) | St2ps St2sp St3ps St3sp | 1311
1312 | 40A 40B |
In addition to Q235B Q355BH H Beam steel, there are two other steel grades, Q355C and Q355D. Among them, Q355C is a higher grade of Q345C structural steel, with better chemical composition, mechanical properties and strength, and is often used in engineering construction such as bridges and pressure vessels.
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About Henan Houming Industrial Co., Ltd.: We are a manufacturer specializing in deep processing of
Prefab House, silicon steel, weathering steel , corten steel and wear-resistant plates. Houming adheres to the business philosophy of "seeking truth and being pragmatic" and is committed to providing customers with high-quality products and services. Through continuous technological innovation and process improvement, we have established a good reputation in the industry and won the trust and support of our customers.
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