1Cr15

1Cr15 Stainless Steels to GB/T 12770 (2002)

1Cr15 - Specification & Application

• GB/T 12770 (2002) - Welded stainless steel tubes for machine structures
• GB/T 3280 (2007) - 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

Welded stainless steel tubes for machine structures

Chemical composition(wt.%) of 1Cr15 grade: to GB/T 12770 (2002)

1Cr15 - Detail

1Cr15

Mechanical properties of grade 1Cr15 GB/T 12770 (2002)

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)
625 (≥)	187 (≥)	42	12	11	Solution and Aging, Annealing, Ausaging, Q+T,etc	341

Physical properties of grade 1Cr15 GB/T 12770 (2002)

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
449 (≥)	852 (≥)	33	32	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	444
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
787	492	894