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Steel hollow section can be mainly divided into round hollow section, rectangular hollow section and square hollow section. Rectangular and square carbon steel tube are widely used in various fields such as construction or building, low pressure liquid delivery, engineering, fencing,greenhouse etc. Surface of steel tube generally are black or galvanized, galvanized Steel tube has good features of corrosion resistance, anti-rust, acid resistance, which largely extend its service life.
1. Products description
| Brand name: Friend | |||||
| Factory address: Tianjin, China | |||||
| Product name: SHS ( square hollow section ), RHS ( rectangular hollow section) | |||||
| Size: 20*20 - 400*400 | |||||
| Thickness: 0.6-16 mm | |||||
| Material: Q195, Q235, Q345 / S235, S355 / SS400 STK500 | |||||
| Standard：GB T3094, EN10210, ASTM A500, etc. | |||||
| Application: mainly construction | |||||
| Surface treatment: black, HD galvanized, pre galvanized, painted, etc. | |||||
| Certification: ISO, SGS, BV and other third party testing |
2. Mild steel hollow section ASTM A500
| ASTM A500 Chemical Composition & Physical Properties | |||||||
| Category | C（max） | Mn (max） | S（max） | P（max） | TS（min） | QS（min） | Elongation（min） |
| A | 0.3 | 1.4 | 0.045 | 0.045 | 310 | 228 | 25 |
| B | 0.3 | 1.4 | 0.045 | 0.045 | 400 | 290 | 23 |
| C | 0.27 | 1.35 | 0.045 | 0.045 | 427 | 317 | 21 |
| D | 0.3 | 1.4 | 0.045 | 0.045 | 400 | 250 | 23 |
| ASTM A500 Tolerance | ||||
| OD | Thickness | Length | ||
| D≤48.3mm | ±0.5% | ±10% | L≤6.7m | 12.7mm |
| -6.4mm | ||||
| D≥50.8mm | ±0.75% | |||
| L>6.7m | 19.0mm | |||
| -6.4mm | ||||
3. Pictures of steel hollow section
Steel hollow section can be mainly divided into round hollow section, rectangular hollow section and square hollow section. Rectangular and square carbon steel tube are widely used in various fields such as construction or building, low pressure liquid delivery, engineering, fencing,greenhouse etc. Surface of steel tube generally are black or galvanized, galvanized Steel tube has good features of corrosion resistance, anti-rust, acid resistance, which largely extend its service life.
1. Products description
| Brand name: Friend | |||||
| Factory address: Tianjin, China | |||||
| Product name: SHS ( square hollow section ), RHS ( rectangular hollow section) | |||||
| Size: 20*20 - 400*400 | |||||
| Thickness: 0.6-16 mm | |||||
| Material: Q195, Q235, Q345 / S235, S355 / SS400 STK500 | |||||
| Standard：GB T3094, EN10210, ASTM A500, etc. | |||||
| Application: mainly construction | |||||
| Surface treatment: black, HD galvanized, pre galvanized, painted, etc. | |||||
| Certification: ISO, SGS, BV and other third party testing |
2. Mild steel hollow section ASTM A500
| ASTM A500 Chemical Composition & Physical Properties | |||||||
| Category | C（max） | Mn (max） | S（max） | P（max） | TS（min） | QS（min） | Elongation（min） |
| A | 0.3 | 1.4 | 0.045 | 0.045 | 310 | 228 | 25 |
| B | 0.3 | 1.4 | 0.045 | 0.045 | 400 | 290 | 23 |
| C | 0.27 | 1.35 | 0.045 | 0.045 | 427 | 317 | 21 |
| D | 0.3 | 1.4 | 0.045 | 0.045 | 400 | 250 | 23 |
| ASTM A500 Tolerance | ||||
| OD | Thickness | Length | ||
| D≤48.3mm | ±0.5% | ±10% | L≤6.7m | 12.7mm |
| -6.4mm | ||||
| D≥50.8mm | ±0.75% | |||
| L>6.7m | 19.0mm | |||
| -6.4mm | ||||
3. Pictures of steel hollow section
