1Cr18Mn8Ni5N

1Cr18Mn8Ni5N Stainless Steels to GB/T 1220 (1992)

1Cr18Mn8Ni5N - Specification & Application

• GB/T 1220 (1992) - Stainless steel bars
• GB/T 3280 (1992) - Cold rolled stainless steel sheets and plates
• GB/T 4237 (1992) - Hot rolled stainless steel sheets and plates
• GB/T 4239 (1991) - Cold rolled stainless steel and heat resisting steel strips
• GB/T 4356 (2002) - Stainless steel wire rods

Nickel steel, instead of 1cr18ni9

Chemical composition(wt.%) of 1Cr18Mn8Ni5N grade: to GB/T 1220 (1992)

1Cr18Mn8Ni5N - Detail

Stainless and heat resisting steels
Austenitic stainless steel. Grade 1Cr18Mn8Ni5N was replaced by new designation 12Cr18Mn9Ni5N according to GB/T 20878 (2007)

Mechanical properties of grade 1Cr18Mn8Ni5N GB/T 1220 (1992)

Proof strength Rp0.2 (MPa)	Tensile strength Rm (MPa)	Impact energy KV (J)	Elongation at fracture A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
873 (≥)	389 (≥)	12	23	12	Solution and Aging, Annealing, Ausaging, Q+T,etc	424

Physical properties of grade 1Cr18Mn8Ni5N GB/T 1220 (1992)

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	Expansion rate
493 (≥)	327 (≥)	33	13	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	412
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
282	659	929