Global · Enterprise standard

Type 309

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Chemical composition

wt% · log scale
0.010.1110100C0.2Cr22 – 24Mn2Ni12 – 15P0.045S0.03Si0.75
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2290 MPaTensile strength Rm621 MPaElongation A49 %

Physical properties

vs. temperature
Mean thermal expansion 10⁻⁶/K
15.6 – 19.4°C
Thermal conductivity W/(m·K)
15.6 – 18.7°C
Resistivity Ω·mm²/m
0.780 – 1.15°C

Chemical composition

ElementminmaxSimilarRemarks
C0.2
Cr2224
Mn2
Ni1215
P0.045
S0.03
Si0.75

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
heavy plate, sheet, strip, annealed29062149

Physical properties

20.0

Elastic modulusMean thermal expansionThermal conductivitySpecific heatResistivityDensityPoisson's ratio
200.000.788.03

Typical physical values

DensityElastic modulusPoisson's ratioRemarks
7.61–8.10190.00–215.000.27–0.30不锈钢的典型材料性能数值,此值不来源于标准,它是指示性指标,不能被用于设计用途。
7.86190.00–210.000.27–0.30低碳,高合金钢材料性能属性数值,此值不来源于标准,它是指示性指标,不能被用于设计用途。

High/low temperature

Yield strength Rp0.2 (MPa)
ConditionTemperature ℃max
heavy platessheets871
heavy platessheets760
heavy platessheets649
heavy platessheets538
heavy platessheets427
heavy platessheets204
Tensile strength Rm (MPa)
ConditionTemperature ℃max
heavy platessheets982
heavy platessheets871
heavy platessheets760
heavy platessheets649
heavy platessheets538
heavy platessheets427
heavy platessheets204

Similar grades

GradeRegionSystem
SX 309GlobalEnterprise standard
CS 309GlobalEnterprise standard
A167 S30900United StatesASTM
PK15GlobalEnterprise standard
AK STEEL 309GlobalEnterprise standard
SIRIUS S12GlobalEnterprise standard
SIRIUS 309GlobalEnterprise standard
Carpenter Stainless Type 309SGlobalEnterprise standard
Carpenter Stainless Type 309GlobalEnterprise standard
A167 Type 309United StatesASTM
1.4828European UnionEN
1.4833European UnionEN
X 15 CrNiSi 20 12European UnionEN
X 12 CrNi 23 13GermanyDIN
X 15 CrNiSi 20 12GermanyDIN
1.4833GermanyDIN
1.4828GermanyDIN