• Gbt 8163 grade 10,20,q345,q390,q420,q460 seamless steel pipe for liquid service

GB/T8163 standard is the standard of seamless carbon steel pipe used for fluid transportation. It specifies the production technical requirements and inspection methods of cold drawn steel pipe, cold rolled steel pipe, hot rolled steel pipe and hot expanded steel pipe used for fluid transportation, such as eddy current inspection, magnetic flux leakage inspection and ultrasonic inspection.IMRI can customize the hot rolled seamless carbon steel pipe for you according to the delivery requirements stipulated in this standard.

Specifications

Standard GB/T 8163
Steel Grade/Material 10#,20#,Q345A,Q345B,Q345C,Q345D,Q345E,Q390A,Q390B,Q390C,Q390D,Q390E,Q420A,Q420B,Q420C,etc.
OEM service Provide
Outer Diameter(OD) 1 1/2”-28”(38mm-720mm)
Wall Thickness(WT) 2.6mm-60mm
Length 5.8-16m or OEM
Packing Plastic cap and bundling
Surface Treatmengt Bare or 3pe,3pp,fbe anti-corrosion coated
Section Shape Round
Technique Seamless hot rolled
Application Used as liquid transportation steel pipes
Sour service No
Place of Origin China
MOQ 25 ton
Transportation 1.Sea port:Tianjin Xingang port,Qingdao port,Shanghai Luojing port
→America,Europe,Africa,Middle East,India, Pakistan,Japan,Korea,
Australia…(shipping)

2.Land port:Alataw pass port(Пограничный пункт “Алашанькоу”)
Khorgos port(Пограничный пункт “Хоргос”)
→East Asia, Uzbekistan,Kazakhstan,Kyrgyzstan…(Train)
Erlianhot port→Mongolia(Train and Truck)
Manchuria port→Russia(Train and Truck)

Grade Chemical Composition of grade 10#,20#
C Si Mn P S Cr Ni Cu
10 0.07-0.13 0.17-0.37 0.35-0.65 ≤0.030 ≤0.030 ≤0.15 ≤0.3 ≤0.2
20 0.17-0.23 0.17-0.37 0.35-0.65 ≤0.030 ≤0.030 ≤0.25 ≤0.3 ≤0.2
Chemical composition of grade q345,q390,q420 and q460
Steel grade Chemical Composition/%
C Si Mn P S Nb V Ti Cr Ni Cu N Mo B Als
Q345A 0.2 0.5 1.7 0.035 0.035 0.3 0.5 0.2 0.012 0.1
Q345B
Q345C 0.03 0.03 0.07 0.15 0.2 0.015
Q345D 0.18 0.03 0.025
Q345E 0.025 0.02
Q390A 0.2 0.5 1.7 0.035 0.035 0.07 0.2 0.2 0.3 0.5 0.2 0.015 0.1
Q390B
Q390C 0.03 0.03 0.015
Q390D 0.03 0.025
Q390E 0.025 0.02
Q420A 0.2 0.5 1.7 0.035 0.035 0.07 0.2 0.2 0.3 0.8 0.2 0.015 0.2
Q420B
Q420C 0.03 0.03 0.015
Q420D 0.03 0.025
Q420E 0.025 0.02
Q460C 0.2 0.6 1.8 0.03 0.03 0.11 0.2 0.2 0.3 0.8 0.2 0.015 0.2 0.005 0.015
Q460D 0.03 0.025
Q460E 0.025 0.02
Mechanical properties of grade 10#,20#,q345,q390,q420,q460
Steel grade Tensile strength Rm/MPa Lower yield strength ReL/MPa Elongation after break Impact test
Temperature/ Absorb energy KV2/J
10 335-475 205 24
20 410-530 245 20
Q345A 470-630 345 20
Q345B 20 34
Q345C 21 0
Q345D -20
Q345E -40 27
Q390A 490-650 390 18
Q390B 20 34
Q390C 19 0
Q390D -20
Q390E -40 27
Q420A 520-680 420 18
Q420B 20 34
Q420C 19 0
Q420D -20
Q420E -40 27
Q460C 550-720 460 17 0 34
Q460D -20
Q460E -40 27

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