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GBT K273

K273


K273 material is Age hardening type iron base alloy.

Chemical composition of K273, K273 mechanical properties, K273 datasheet, K273 equivalent grade, Heat treatment and temperature process of K273.


K273 property sheet

K273 Spec.

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Chemical Composition of K273

C 0.75-0.90
Si 0.30-1.00
Mn 4.50-6.00
P Max 0.04
S Max 0.02
Cr 18.0-21.0
Ni 4.50-5.50
Mo 0.80-1.20
W 0.80-1.20
B Max 0.005
Nb 0.65-0.85
Al Max 0.05

Mechanical Properties of K273

Rp0.2 (MPa) 121 (≥)
Rm (MPa) 211 (≥)
AKV (J) 32
A (%) 32
Z (%) 23
Hardness HBW 441

K273 shape and dimensions

K273 Round bar: 1mm-800mm
K273 Square bar: 10mm * 10mm-600mm *600mm
K273 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
K273 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
K273 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
K273 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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