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EN X6CrNiMoNb17-12-2, 1.4580, AISI 316Cb, UNS S31640 Details

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

Category Type Grade Microstructure Designations
Grades Stainless Steels X6CrNiMoNb17-12-2, 1.4580, AISI 316Cb, UNS S31640 Austenite European - EN , 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

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

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

X6CrNiMoNb17-12-2, 1.4580, AISI 316Cb, UNS S31640 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

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

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