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GBT Q390

Q390


Q390 material is China structural steel and alloy steel.

Chemical composition of Q390, Q390 mechanical properties, Q390 datasheet, Q390 equivalent grade, Heat treatment and temperature process of Q390.


Q390 property sheet

Q390 Spec.

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Chemical Composition of Q390

C 0.2
Si 1.00-1.60
Mn 0.55
P 0.035
S 0.035
V 0.02-0.20
Nb 0.015-0.060
Al 0.015
Ti 0.02-0.20

Mechanical Properties of Q390

Rp0.2 (MPa) 471 (≥)
Rm (MPa) 194 (≥)
AKV (J) 14
A (%) 14
Z (%) 33
Hardness HBW 442

Q390 shape and dimensions

Q390 Round bar: 1mm-800mm
Q390 Square bar: 10mm * 10mm-600mm *600mm
Q390 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
Q390 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
Q390 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
Q390 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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