Products
|20MnG Thick Wall Seamless Steel Tubes|
20MnG seamless steel tube under GB 5310 standard is alloy steel high pressure boiler pipe/tube.
20MnG Thick Wall Seamless Steel Tubes description
20MnG seamless steel tube under GB 5310 standard is alloy steel high pressure boiler pipe/tube. This alloy tube is widely used in hydraulic prop, high-pressure gas cylinder, high pressure boiler, chemical fertilizer plants, petroleum cracking half-sleeve, automotive, and hydraulic fitting tube.
Standard: GB 5310
GB 20MnG Chemical composition:
|
C |
Si |
Mn |
P |
S |
|
0.17-0.23 |
0.17-0.37 |
0.70-1.00 |
0.025 max. |
0.015 max. |
GB 20MnG Mechanical properties:
|
Grade |
Tensile strength(MPa) |
Yield strength(MPa) |
Elongation(%) |
|
|
Vertical |
Longitudinal |
|||
|
20MnG |
415-560 |
240 min. |
22 min. |
20 min. |
20MnG seamless tubes heat treatment: Normalizing
Normalizing temperature: 880 °C-940 °C
Inspection and Test:
Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test,No-destructive Test, Hydrostatic Test.
Surface treatment:
Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
If you are looking for 20MnG thick to medium wall seamless steel tube, please contact us. Shanghai Katalor will fabricate large quantity of GB 20MnG thick wall seamless steel tubes with competitive price.
