1. Production Description:
Standard：GB/T 13793-92 GB/T3091-2001
Grade：Q235B
Size Range：25*3mm-200*24mm
Tolerance：3-5%
Length：As request
Equivalent grade: A36, SS400, St37, S235JR
2. Chemical Compostion:
| Grade | Chemical Composition (%) | ||||
| C | Si | Mn | P | S | |
| Q195 | ≤0.12 | ≤0.30 | ≤0.50 | ≤0.035 | ≤0.040 |
| Q235B | ≤0.20 | ≤0.35 | ≤1.40 | ≤0.045 | ≤0.045 |
3. Mechanical Properties:
| Grade | Mechanical Property | ||
| Yield Strength (N/mm2)/(Mpa) | Tensile Strength (N/mm2)/(Mpa) | Elongtation (%) | |
| Q195 | ≥195 | 315-430 | ≥33 |
| Q235B | ≥235 | 370-500 | ≥26 |
4. Production Shown:
5. Application:
1). Pipes for pipeline. Such as: seamless pipes for water, gas pipes, steam pipes, oil pipelines, and pipes for oil and natural gas trunk lines. Agricultural irrigation faucets with pipes and sprinkler irrigation pipes, etc. 2). Tubes for thermal equipment. Such as boiling water pipes, superheated steam pipes for general boilers, superheating pipes, large smoke pipes, small smoke pipes, arch brick pipes and high temperature and high pressure boiler pipes for locomotive boilers. 3). Pipes for machinery industry. Such as aviation structural pipes (round pipes, elliptical pipes, flat elliptical pipes), automobile semi-axle pipes, axle pipes, automobile tractor structural pipes, tractor oil cooler pipes, agricultural machinery square pipes and rectangular pipes, transformer pipes and bearings tube etc. 4). Pipes for petroleum geological drilling. Such as: oil drilling pipe, oil drill pipe (kelly and hexagonal drill pipe), drill pipe, oil tubing, oil casing and various pipe joints, geological drilling pipe (core pipe, casing, active drill pipe, drill pipe) , press hoop and pin joints, etc.). 5). Pipes for chemical industry. Such as: oil cracking pipes, chemical equipment heat exchangers and pipes, stainless acid-resistant pipes, high-pressure pipes for chemical fertilizers, and pipes for transporting chemical media, etc. 6). Other departments use pipes. Such as: tubes for containers (tubes for high-pressure gas cylinders and tubes for general containers), tubes for instrumentation, tubes for watch cases, injection needles and tubes for medical devices, etc. 6. Warehouse show: 
7. Processed Steel production: 
8. Our service: 
9. OEM service We have lots of brother processing steel compaines who can support us to customized OEM steel production according to client's request or drawings. Our target is to build one-stop purchasing service for our clients. Long term relationship and double win in business.
7. Processed Steel production: 
8. Our service: 
9. OEM service We have lots of brother processing steel compaines who can support us to customized OEM steel production according to client's request or drawings. Our target is to build one-stop purchasing service for our clients. Long term relationship and double win in business.