steel grade GB Q235B/Q345B

• Scientific name: carbon structural steel
• GB means compulsory Chinese Standard issued by Chinese government
• Q235/345 means steel yield value 235/345 MPa
• B means quality level (A B C D) classified via its chemical component
• Chemical component:
  • C: 0.12-0.20
  • Si: ≤0.30
  • Mn:0.30-0.70
  • S: ≤0.045
  • P: ≤0.045
  • Cr: ≤0.30
  • Ni: ≤0.30
  • Cu: ≤0.30

• Founded time: 2001
• Location: Xuzhou City, Jiangsu Province, China mainland
• Main business: Design and manufacture
  • H formed portal steel structures
  • Steel space frame structures
  • Membrane structure roof
  • Pipe truss structures
  • Curtain walls
• Our advantages
  • Over 14 years rich professional industry experience
  • One-key solution: tell us your troubles, we offer you a full set final solution
  • Field installations

Application fields:

Steel structure products are widly used in workshop, gymnasium, swimming pool, exhibition hall and so on. It changes the tranditional construction concept by lower cost and more environmentally friendly.

Technical Parameters:

Successful Project

• Location (where will be built?) _____country, area
• Size: length*width*height _____mm*_____mm*_____mm
• Wind load (max. wind speed) _____kn/m2, _____km/h, _____m/s
• Snow load (max. snow height) _____kn/m2, _____mm
• Anti-earthquake _____level
• Brick wall needed or not If yes, 1.2m high or 1.5m high or else
• Door quantity & size _____units, _____(width)mm*_____(height)mm
• Window quantity & size _____units, _____(width)mm*_____(height)mm
• Crane needed or not. If yes, _____units, max. lifting weight____tons; max. lifting height _____m
  • If yes, EPS, fiberglass wool, rockwool, PU sandwich panels will be suggested
  • if not, the metal steel sheets will be ok. The cost of the latter will be much lower than that of the former