France · AFNOR NF

1.4945

NF EN 10302:2002 — NF EN 10302

Chemical composition

wt% · log scale
0.0010.010.1110100C0.04 – 0.1Cr15.5 – 17.5Mn1.5N0.06 – 0.14Nb1.2Ni15.5 – 17.5P0.035S0.015Si0.3 – 0.6W2.5 – 3.5
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≥490 MPaTensile strength Rm630–840 MPaElongation A≥17 %Flat products, Warm worked +WW, <= 60 mmYield strength Rp0.2≥250 MPaTensile strength Rm540–740 MPaElongation A≥30 %flats and long products +AT

High / low temperature

value vs. temperature
80.4183285387490100200300400500550600650700°C
  • long products and flat products Warm worked +WW · Yield strength Rp0.2
  • long products and flat products solution annealed +AT · Yield strength Rp0.2

Physical properties

vs. temperature
Elastic modulus GPa
157 – 196°C
Mean thermal expansion 10⁻⁶/K
10.5 – 12.2°C
Thermal conductivity W/(m·K)
14.0 – 26.0°C
Specific heat J/(kg·K)
440 – 560°C

Creep properties

-14.667.0149230312580590600610620630640650660670680690700710720730740750MPa
  • 10000.0h
  • 100000.0h
  • 200000.0h

Temperature °C · time at rupture

Chemical composition

ElementminmaxSimilarRemarks
C0.040.1
Cr15.517.5
Mn1.5
N0.060.14
Nb1.2>= 10 x %C
Ni15.517.5
P0.035
S0.015
Si0.30.6
W2.53.5

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
Flat products, Warm worked +WW, <= 60 mm≥490630–840≥17
flats and long products +AT≥250540–740≥30

Physical properties

20.0

Elastic modulusMean thermal expansionThermal conductivitySpecific heatResistivityDensityPoisson's ratio
196.0014.00440.000.608.00

Typical physical values

DensityElastic modulusPoisson's ratioRemarks
7.61–8.10190.00–215.000.27–0.30Typical material properties for stainless steel. These values are not taken from the standard; they are indicative and must not be used for design.
7.86190.00–210.000.27–0.30Material properties for low-carbon, high-alloy steel. These values are not taken from the standard; they are indicative and must not be used for design.

High/low temperature

Yield strength Rp0.2 (MPa)
ConditionTemperature ℃Approx.
long products and flat products Warm worked +WW700120
long products and flat products Warm worked +WW650165
long products and flat products Warm worked +WW600205
long products and flat products Warm worked +WW550235
long products and flat products Warm worked +WW500265
long products and flat products Warm worked +WW400315
long products and flat products Warm worked +WW300365
long products and flat products Warm worked +WW200410
long products and flat products Warm worked +WW100450
long products and flat products solution annealed +AT600145
long products and flat products solution annealed +AT550150
long products and flat products solution annealed +AT500155
long products and flat products solution annealed +AT400165
long products and flat products solution annealed +AT300175
long products and flat products solution annealed +AT200195
long products and flat products solution annealed +AT100225

Creep

1. Solution-annealed (+AT) long products and flat bars

Temperature ℃Time hRp1CRS
58010000.0h188.0280.0
580100000.0h140.0196.0
580200000.0h169.0
59010000.0h178.0256.0
590100000.0h129.0178.0
590200000.0h153.0
60010000.0h167.0235.0
600100000.0h118.0162.0
600200000.0h139.0
61010000.0h156.0215.0
610100000.0h107.0146.0
610200000.0h125.0
62010000.0h145.0196.0
620100000.0h96.0131.0
620200000.0h110.0
63010000.0h134.0178.0
630100000.0h86.0116.0
630200000.0h98.0
64010000.0h124.0162.0
640100000.0h77.0102.0
640200000.0h86.0
65010000.0h113.0147.0
650100000.0h69.090.0
650200000.0h77.0
66010000.0h103.0133.0
660100000.0h62.081.0
660200000.0h67.0
67010000.0h94.0121.0
670100000.0h56.073.0
670200000.0h59.0
68010000.0h85.0110.0
680100000.0h50.065.0
680200000.0h52.0
69010000.0h76.0100.0
690100000.0h44.057.0
690200000.0h45.0
70010000.0h69.091.0
700100000.0h39.049.0
700200000.0h39.0
71010000.0h62.083.0
710100000.0h34.042.0
710200000.0h33.0
72010000.0h55.075.0
720100000.0h29.036.0
720200000.0h29.0
73010000.0h49.068.0
730100000.0h25.032.0
730200000.0h24.0
74010000.0h44.061.0
740100000.0h21.027.0
740200000.0h20.0
75010000.0h39.054.0
750100000.0h17.023.0
750200000.0h17.0

Similar grades

GradeRegionSystem
1.4945ItalyUNI
X 6 CrNiWNbN 16-16ItalyUNI
1.4945SpainUNE
X 6 CrNiWNbN 16-16SpainUNE
1.4945RomaniaSTAS
X 6 CrNiWNbN 16-16RomaniaSTAS
1.4945SwedenSS
X 6 CrNiWNbN 16-16SwedenSS
1.4945SwitzerlandSNV
X 6 CrNiWNbN 16-16SwitzerlandSNV
1.4945FinlandSFS
X 6 CrNiWNbN 16-16FinlandSFS
1.4945PolandPN
X 6 CrNiWNbN 16-16PolandPN
1.4945AustriaONORM
X 6 CrNiWNbN 16-16AustriaONORM
1.4945NorwayNS
X 6 CrNiWNbN 16-16NorwayNS
1.4945BelgiumNBN
X 6 CrNiWNbN 16-16BelgiumNBN
1.4945HungaryMSZ
X 6 CrNiWNbN 16-16HungaryMSZ
X 6 CrNiWNbN 16-16GermanyDIN
1.4945Czech RepublicCSN
X 6 CrNiWNbN 16-16Czech RepublicCSN
1.4945BulgariaBDS
X 6 CrNiWNbN 16-16BulgariaBDS
1.4945United KingdomB.S.
X 6 CrNiWNbN 16-16United KingdomB.S.
X 6 CrNiWNbN 16-16FranceAFNOR NF
1.4945GermanyDIN