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Shanghai AIYIA Industrial Co., Ltd.

Professional Metal Material Manufacturer in China

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Black Annealed Steel Pipe

Inquiry

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

round black annealed steel pipe
Out Daeter
(mm)  
Wall Thicknes
(mm)  
Length
(mm)     
21.30.6-3.000.3-12
26.9  0.6-3.000.3-12
33.41.0-3.00.3-12
42.31.0-4.00.3-12
48.31.0-4.00.3-12
60.31.5-4.00.3-12
76.11.5-4.00.3-12
88.91.5-9.50.3-12
114.32.0-9.50.3-12
141.33.0-9.50.3-12
168.33.0-12.01.0rn-12
219.13.2-12.01.0-12
2733.2-12.01.0rn-12
323.86.0-15.01.0-12
355.68.0-15.01.0-12
406.48.0-20.01.0-12

Square Black Annealed Steel Pipe

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
44×441.0~4.5 
45×45 1.0~5.0
50×50 1.0~5.0
60×601.5~5.0 
70×70 2.0-6.0
75×75 2.0-6.0
80×802.0-6.0 
85-8520-6.0 
95*952.0-8.0
100×1002.0-8.0
120×1204.0-8.0
150×1506.0~10.0
180×1806.0~12.0
200×2006.0~12.0
220×2206.0~14.0
250×2506.0~14.0

Rectangular Black Annealed Steel Pipe

Rectangular Black Annealed Steel Pipe
Size(mm)Wall Thicknes(mm)
10×200.6~1.5
14×210.6-1.5
15×301.5-1.5
15×380.6-1.5 
20×300.6-2.0
20×400.8-2.0
20×501.0-2.0
22×350.9-2.0
25×400.9~3.75
25×651.0-2.0
30×401.0-3.75 
30×451.0-3.75
30×501.0~4.0
30×601.0-4.5
40×501.0~4.5
40×601.0~5.0 
40×801.5~5.0
40×1002.0~5.0
50×602.0~5.0
50×802.0-5.0 
50×1002.0~8.0 
60×802.0~6.0
80×1002.0~8.0
120×602.5~10
120×802.5~10

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