1Cr17Ni2

1Cr17Ni2 Stainless Steels to GB 2270 (1980)

1Cr17Ni2 - Specification & Application

• GB 2270 (1980) - Seamless tubes
• GB/T 1220 (1992) - Stainless steel bars
• GB/T 1221 (1992) - Heat-resisting steel bars
• GB/T 3280 (1992) - Cold rolled stainless steel sheets and plates
• GB/T 4240 (1993) - Stainless steel wires
• GB/T 4356 (2002) - Stainless steel wire rods
• JB/T 6398 (2006) - Heavy stainless acid resistant and heat resistant steel forgings

Stainless steel bars

Chemical composition(wt.%) of 1Cr17Ni2 grade: to GB 2270 (1980)

1Cr17Ni2 - Detail

1Cr17Ni2

Mechanical properties of grade 1Cr17Ni2 GB 2270 (1980)

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)
812 (≥)	316 (≥)	43	32	22	Solution and Aging, Annealing, Ausaging, Q+T,etc	413

Physical properties of grade 1Cr17Ni2 GB 2270 (1980)

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
532 (≥)	453 (≥)	14	32	34	Solution and Aging, Annealing, Ausaging, Q+T,etc	244
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
639	476	165