X6CrNiMoNb17-12-2, 1.4580, AISI 316Cb, UNS S31640 Stainless Steels to EN 10028-7

X6CrNiMoNb17-12-2, 1.4580, AISI 316Cb, UNS S31640 - Specification & Application

  • EN 10028-7 - Flat products made of steels for pressure purposes - Part 7: Stainless steels
  • EN 10088-1 - Stainless steels - Part 1: List of stainless steels
  • EN 10088-2 - Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
  • EN 10088-3 - Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
  • EN 10216-5 (2004) - Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5: Stainless steel tubes
  • EN 10272 - Stainless steel bars for pressure purposes
  • EN 10297-2 (2005) - Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

used for fasteners, heat exchangers, coolers, tanks, pumps, pipelines and similar equipment of refineries, paper mills, food processing plants and chemical plants

Chemical composition(wt.%) of X6CrNiMoNb17-12-2, 1.4580, AISI 316Cb, UNS S31640 grade: to EN 10028-7

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.080
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.015
Cr 16.50 18.50
Mo 2.00 2.50
Ni 10.50 13.50
Nb 10×C 1.00

Mechanical properties of grade X6CrNiMoNb17-12-2, 1.4580, AISI 316Cb, UNS S31640 grade: to EN 10028-7

Yield Strength,Rp 0.2(MPa)

Condition Min Max Similar Note
Forgings 220 250
Hight temperature 50°C 207
Hight temperature 150°C 177

Tensile Strength,Rm(MPa)

Condition Min Max Similar Note
Forgings 520 720
Hight temperature 50°C 490
Hight temperature 150°C 410

Impact,Kv/Ku(J)

Condition Min Max Similar Note

Elongation,A(%)

Condition Min Max Similar Note
Forgings 40
Forgings KV. 20°С 100

Reduction of area,(%)

Condition Min Max Similar Note

Hardness

Condition Type Min Max Similar Note
Forgings HBW 230

Physical properties of grade X6CrNiMoNb17-12-2, 1.4580, AISI 316Cb, UNS S31640 EN 10028-7

Density Note
8 g/cm3 Room temperature
Specific heat capacity Note
0.5 kJ/(kg*K) Room temperature
Thermal conductivity Note
15 W/(m*K) Room temperature
Young's modulus E Note
200 GPa Room temperature
Electrical resistivity Note
0.75 µΩ*m Room temperature
Linear expansion coefficient Note
16.5 (10-6/K) Room temperature
Linear expansion coefficient Note
16.5 (10-6/K) temperature: 100°C

Related properties

Heat treatment and working - Forging 1150 °C - 850 °C
Heat treatment and working - Rolling 1150 °C - 850 °C
Heat treatment and working - Solutioning 1030 °C - 1110 °C

X6CrNiMoNb17-12-2, 1.4580, AISI 316Cb, UNS S31640 - Detail

Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

X6CrNiMoNb17-12-2, 1.4580, AISI 316Cb, UNS S31640 used for fasteners, heat exchangers, coolers, tanks, pumps, pipelines and similar equipment of refineries, paper mills, food processing plants and chemical plants

Equivalent Products

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