① I-beam – ordinary I-beam, light I-beam
② channel – hot-rolled channel (ordinary channel, light channel), bending channel
③ H-beam (also known as wide leg I-beam)
④ rail – heavy rail, light rail, crane rail, other special rails
⑤ Window frame steel
⑥Steel sheet piles
⑦Bending section steel – cold-formed steel, hot-formed steel
⑧Other
| Large | Medium | Small |
I-beam | high ≥ 180mm | high＜ 180mm |
|
Channel | high ≥ 180mm | high＜ 180mm |
|
Equilateral angle steel | side width≥ 160mm | side width 50 -140mm | side width 20 -45mm |
Unequal angles | side width ≥160× 100mm | side width 140×90-50× 32 mm | side width ≤45× 28 mm |
Round steel | Diameter ≥ 90mm | Diameter 38 -80mm | Diameter 10 -36 mm |
Square steel | side width≥ 90mm | side width 50 -75 mm | side width 10 -25 mm |
Flat steel | width ≥ 120mm | width 60 -100 mm | width 12 -55 mm |
Rebar |
| diameter ≥ 40 mm | diameter 10 -36 mm |
Rivet steel |
|
| diameter 10 -22 mm |
Other | profiled steel: track plates, sheet piles, etc | Profiled steel, composite flat steel for small farm tools, etc | Profiled steel, farm tool steel, window frame steel, etc |
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