X7CrNi18-9 - Cast Iron and Cast Steel

X7CrNi18-9 Stainless Steels to ISO 15510 (2010)

ISO 15510 (2010) - Stainless steels -- Chemical composition
ISO 16143-3 (2005) - Stainless steels for general purposes -- Part 3: Wire
ISO 4955 (2005) - Heat-resistant steels
ISO 9327-5 - Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 5: Stainless steels
ISO 9328-5 - Steel plates and strips for pressure purposes - Technical delivery conditions - Part 5: Weldable fine grain steels, thermomechanically rolled
ISO 9329-4 - Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Austenitic stainless steels
ISO/TS 15510 (2003) - Stainless steels - Chemical composition

Stainless steels - Chemical composition

Elements	Min.（≥）	Max.（≤）
C	-	0.10
Si	-	1.00
Mn	-	2.00
P	-	0.045
S	-	0.030
Cr	17.00	19.00
Ni	8.00	11.00

Stainless steels - Chemical composition

Proof strength R_p0.2 (MPa)	Tensile strength R_m (MPa)	Impact energy KV (J)	Elongation at fracture A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
451 (≥)	197 (≥)	44	31	21	Solution and Aging, Annealing, Ausaging, Q+T,etc	242

Property	Density kg/dm3	Temperature T °C/F	Specific heat J / kgK	Thermal conductivity W/mK	Electric resistance µΩ·cm	Modulus of elasticity kN/mm2
439 (≥)	645 (≥)	43	33	12	Solution and Aging, Annealing, Ausaging, Q+T,etc	443
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
146	838	849

1 X7CrNi18-9 2 ISO X7CrNi18-9 3 ISO X7CrNi18 9 4 X7CrNi18-9 5 X7CrNi18-9 6 X7CrNi18-9

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