seamless steel pipes for structures
Steel Grade: 10, 20, 45, 20Mn, 25Mn, Q235, Q295, Q345, 40Mn2, 45Mn2, 27SiMn, 12CrMo, 12CrMoV, 20CrMn
Standard: GB/T 8162-2008
Application: It is used for mechanical structure like making pellet machine and general engineering structures.
Sizes: O.D.: 60mm~219mm, W.T.: 4mm~35mm.
Chemical Composition, Mass Fraction(%): (Q235 for example)
Steel Grade | Quality Level | C | Si | Mn | P | S | Alt |
Q235 | A | 0.22 | 0.35 | 1.40 | 0.030 | 0.030 | - |
B | 0.20 | - | |||||
C | 0.17 | - | |||||
D | 0.025 | 0.025 | 0.020 |
Mechanical Properties: (Q235 for example)
Steel Grade | Quality Level | (MPa) tensile strength | lower yield strength (MPa) | Elongation (%) | impact test | |||
W.T.(mm) | temperature | absorbed energy (KV2/J) | ||||||
16 | >16~30 | >30 | ||||||
Q235 | A | 375~500 | 235 | 225 | 215 | 25 | - | - |
B | +20 | 27 | ||||||
C | 0 | |||||||
D | -20 |
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