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”) |
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 |