Q235 Ss400 Carbon Steel Square Tube 600mm Q235B A36 St37 Black
Q235 Ss400 Q235B Q345b/Ss400 / A36 St37 Black Carbon Steel Tube/Carbon Steel Square Tube
Carbon steel pipes are divided into two categories: hot-rolled and cold-rolled (drawn) steel pipes.
Hot-rolled carbon steel pipes are divided into general steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes and other steel pipes.
In addition to general steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, and other steel pipes, cold-rolled (pulled) carbon steel pipes also include carbon thin-walled steel pipes, alloy thin-walled steel pipes, non- Rust thin-walled steel pipe, special-shaped steel pipe. The outer diameter of hot-rolled seamless pipes is generally greater than 32mm, and the wall thickness is 2.5-75mm. The outer diameter of cold-rolled seamless pipes can reach 6mm and the wall thickness can reach 0.25mm. The outer diameter of thin-walled pipes can reach 5mm and the wall thickness is less than 0.25mm. Cold rolling has higher dimensional accuracy than hot rolling.
| Product Name | China supply Q195 low carbon black steel hot dip galvanized coating square tube/rectangular hollow tubular steel pipe |
| (O.D) Outer Diameter | 10MM*10MM-500MM*500MM |
| (W.T)Wall thickness | 0.6MM-25MM |
| Length | 1M, 4M, 6M, 8M, 12M (accroding to the buyer's request) |
| Ends | Plain, Beveled, Thread With Couplings Or Sockets; Plastic Caps And Steel Rings Can Be Provided If Possible |
| Standard | GB/T3091-2001 , BS 1387-1985 , DIN EN10025 , EN10219 , JIS G3444:2004 , ASTM A53 SCH40/80/STD , BS- EN10255-2004 |
| Grade | Q195/Q215/Q235/Q345/S235JR/GR.B-D/STK500 |
| Technique | Hot Rolled Or Cold Rolled ERW |
| Package | Covered With Tarpaulin, Containers Or In Bulk |
| Certification | CE, BV, SGS, ISO9001, API |
| Delivery Time | stock or Usually within 10-45 days after receipt of advance payment |
| Product |
Specification (mm) |
Wall Thickness |
Specification (mm) |
Wall Thickness |
|
Square Tube
|
20*20 | 1.3-2.5 | 100*100 | 1.5-12 |
| 25*25 | 1.3-2.75 | 120*120 | 2.5-12 | |
| 30*30 | 1.3-2.75 | 125*125 | 2.5-12 | |
| 40*40 | 1.3-3.75 | 140*140 | 2.75-16 | |
| 50*50 | 1.3-5.75 | 150*150 | 2.75-16 | |
| 60*60 | 1.3-5.75 | 160*160 | 3.0-16 | |
| 70*70 | 1.3-5.75 | 180*180 | 3.0-16 | |
| 80*80 | 1.3-5.75 | 200*200 | 3.0-16 | |
| 90*90 | 1.3-5.75 | 250*250 | 4.75-16 |
| Product |
Specification (mm) |
Wall Thickness |
Specification (mm) |
Wall Thickness |
|
Rectangular Tube
|
20*30 | 1.3-2.75 | 60*90 | 1.3-4.75 |
| 20*40 | 1.3-2.75 | 50*100 | 1.3-5.75 | |
| 25*40 | 1.3-2.75 | 50*150 | 1.3-5.75 | |
| 30*50 | 1.3-4.75 | 60*160 | 1.3-5.75 | |
| 30*60 | 1.3-4.75 | 100*150 | 2.5-16 | |
| 40*50 | 1.3-4.75 | 100*200 | 2.5-16 | |
| 40*80 | 1.3-4.75 | 150*300 | 4.5-16 | |
| 50*70 | 1.3-4.75 | 200*300 | 5.5-16 | |
| 50*80 | 1.3-4.75 | 200*400 | 5.5-16 |
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