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GB/T 13793
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GB/T 13793
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- Description
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Product Description
The steel pipe is straight seam welded steel pipe according to GB/T 13793 standard, which can be bent, crimped and similarly shaped, and is also suitable for welding. Carbon steel pipe material grade (chemical composition) 10, 20, Q235A/B/C, Q275A/B/C, Q345A/B/C, Q390A/B/C, Q420A/B/C, Q460C/D, etc., using high-frequency resistance welding process.
Product Size
Outer diameter: 21.3～1930mm
Wall thickness: 6.00～70.00mm
End: flat end, beveled
Length: 3～12 meters or SRL, DRL, double feet and fixed feet.Packaging
Outer surface coated with oil or clear/black paint, also hot-dip galvanized, bundled with steel straps.
Chemical composition
Wall thickness ≤ 25.0mm PSL1 tube chemical composition
C
Si
Mn
P
S
Cr
Ni
Cu
V
Nb
Ti
N
Mo
Al
≤，%
≤，%
≥，%
10
0.07～0.13
0.17～0.37
0.35～0.65
0.035
0.035
0.15
0.30
0.25
20
0.17～0.23
0.17～0.37
0.35～0.65
0.035
0.035
0.25
0.30
0.25
Q235A
0.22
0.35
≤1.40
0.045
0.050
0.30
0.30
0.30
Q235B
0.20
0.35
≤1.40
0.045
0.045
0.30
0.30
0.30
Q235C
0.17
0.35
≤1.40
0.040
0.040
0.30
0.30
0.30
Q275A
0.24
0.35
≤1.50
0.045
0.050
0.30
0.30
0.30
Q275B
0.21
0.35
≤1.50
0.045
0.045
0.30
0.30
0.30
Q275C
0.20
0.35
≤1.50
0.040
0.040
0.30
0.30
0.30
Q345A
0.20
0.50
≤1.70
0.035
0.035
0.30
0.50
0.30
0.15
0.070
0.20
0.012
0.10
Q345B
0.20
0.50
≤1.70
0.035
0.035
0.30
0.50
0.30
0.15
0.070
0.20
0.012
0.10
Q345C
0.20
0.50
≤1.70
0.030
0.030
0.30
0.50
0.30
0.15
0.070
0.20
0.012
0.10
0.015
Q390A
0.20
0.50
≤1.70
0.035
0.035
0.30
0.50
0.30
0.20
0.070
0.20
0.015
0.10
Q390B
0.20
0.50
≤1.70
0.035
0.035
0.30
0.50
0.30
0.20
0.070
0.20
0.015
0.10
Q390C
0.20
0.50
≤1.70
0.030
0.030
0.30
0.50
0.30
0.20
0.070
0.20
0.015
0.10
0.015
Q420A
0.20
0.50
≤1.70
0.035
0.035
0.30
0.80
0.30
0.20
0.070
0.20
0.015
0.20
Q420B
0.20
0.50
≤1.70
0.035
0.035
0.30
0.80
0.30
0.20
0.070
0.20
0.015
0.20
Q420C
0.20
0.50
≤1.70
0.030
0.030
0.30
0.80
0.30
0.20
0.070
0.20
0.015
0.20
0.015
Q460C
0.20
0.60
≤1.80
0.030
0.030
0.30
0.80
0.55
0.20
0.11
0.20
0.015
0.20
0.015
Q460D
0.20
0.60
≤1.80
0.025
0.025
0.30
0.80
0.55
0.20
0.11
0.20
0.015
0.20
0.015
Product Mechanical Properties
Tensile strength ≥, MPa Yield strength ≥, MPa Elongation after break ≥, % Outer diameter≤168.3mm
Outer diameter＞168.3mm
10
315
195
22
22
20
390
235
19
19
Q235A
370
235
15
20
Q235B
370
235
15
20
Q235C
370
235
15
20
Q275A
410
275
13
18
Q275B
410
275
13
18
Q275C
410
275
13
18
Q345A
470
345
13
18
Q345B
470
345
13
18
Q345C
470
345
13
18
Q390A
490
390
19
19
Q390B
490
390
19
19
Q390C
490
390
19
19
Q420A
520
420
19
19
Q420B
520
420
19
19
Q420C
520
420
19
19
Q460C
550
460
17
17
Q460D
550
460
17
17
Application range
Usually used in the construction of machinery, buildings and other structures and pipelines for the transportation of general fluids.
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Yantai Pipe industry Co., Ltd.,
E-mail: info@yantaipipe.cn
WhatsApp: 8615653819370
Tel: 0086-535-6281117
Add: No. 161 Changjiang Road, FTZ, Yantai , China