Black Annealed Steel Pipe
Product Name: Black Annealed Steel Pipe/Tube
Standard: ASTM A500, BS1387, GB3091, ASTM A53 , EN39
Material: Q345A, Q345B, 20#, 45#, Q235, SS400
Type: Round,Square and Rectangular
Application: Structure Pipe
Certification: CE
Brand: AIYIA
Origin: China
Product Introduction
Annealing is a metal heat treatment process, which refers to slowly heating the metal to a certain temperature, keeping it for a sufficient time, and then cooling it at an appropriate speed. The purpose is to reduce hardness, improve machinability; reduce residual stress, stabilize size, reduce deformation and crack tendency; refine grain, adjust structure, and eliminate structure defects.
Round Black Annealed Steel Pipe
| Out Daeter (mm) | Wall Thicknes (mm) | Length (mm) |
| 21.3 | 0.6-3.00 | 0.3-12 |
| 26.9 | 0.6-3.00 | 0.3-12 |
| 33.4 | 1.0-3.0 | 0.3-12 |
| 42.3 | 1.0-4.0 | 0.3-12 |
| 48.3 | 1.0-4.0 | 0.3-12 |
| 60.3 | 1.5-4.0 | 0.3-12 |
| 76.1 | 1.5-4.0 | 0.3-12 |
| 88.9 | 1.5-9.5 | 0.3-12 |
| 114.3 | 2.0-9.5 | 0.3-12 |
| 141.3 | 3.0-9.5 | 0.3-12 |
| 168.3 | 3.0-12.0 | 1.0rn-12 |
| 219.1 | 3.2-12.0 | 1.0-12 |
| 273 | 3.2-12.0 | 1.0rn-12 |
| 323.8 | 6.0-15.0 | 1.0-12 |
| 355.6 | 8.0-15.0 | 1.0-12 |
| 406.4 | 8.0-20.0 | 1.0-12 |
Square Black Annealed Steel Pipe
| Size(mm) | Wall Thicknes(mm) |
| 16×16 | 0.4~1.5 |
| 18×18 | 0.4~1.5 |
| 20×20 | 0.4~1.5 |
| 25*25 | 0.6-2.0 |
| 30×30 | 0.6-4.0 |
| 34*34 | 1.0-2.0 |
| 35*35 | 1.0~4.0 |
| 38×38 | 1.0~4.0 |
| 40×40 | 1.0~4.5 |
| 44×44 | 1.0~4.5 |
| 45×45 | 1.0~5.0 |
| 50×50 | 1.0~5.0 |
| 60×60 | 1.5~5.0 |
| 70×70 | 2.0-6.0 |
| 75×75 | 2.0-6.0 |
| 80×80 | 2.0-6.0 |
| 85-85 | 20-6.0 |
| 95*95 | 2.0-8.0 |
| 100×100 | 2.0-8.0 |
| 120×120 | 4.0-8.0 |
| 150×150 | 6.0~10.0 |
| 180×180 | 6.0~12.0 |
| 200×200 | 6.0~12.0 |
| 220×220 | 6.0~14.0 |
| 250×250 | 6.0~14.0 |
Rectangular Black Annealed Steel Pipe
| Size(mm) | Wall Thicknes(mm) |
| 10×20 | 0.6~1.5 |
| 14×21 | 0.6-1.5 |
| 15×30 | 1.5-1.5 |
| 15×38 | 0.6-1.5 |
| 20×30 | 0.6-2.0 |
| 20×40 | 0.8-2.0 |
| 20×50 | 1.0-2.0 |
| 22×35 | 0.9-2.0 |
| 25×40 | 0.9~3.75 |
| 25×65 | 1.0-2.0 |
| 30×40 | 1.0-3.75 |
| 30×45 | 1.0-3.75 |
| 30×50 | 1.0~4.0 |
| 30×60 | 1.0-4.5 |
| 40×50 | 1.0~4.5 |
| 40×60 | 1.0~5.0 |
| 40×80 | 1.5~5.0 |
| 40×100 | 2.0~5.0 |
| 50×60 | 2.0~5.0 |
| 50×80 | 2.0-5.0 |
| 50×100 | 2.0~8.0 |
| 60×80 | 2.0~6.0 |
| 80×100 | 2.0~8.0 |
| 120×60 | 2.5~10 |
| 120×80 | 2.5~10 |
