1Cr17Ni7、12Cr17Ni7

characteristic

1Cr17Ni7 stainless steel has high strength after cold working. For railway vehicles, conveyor belts, bolts, nuts. After cold working, it has high strength. For railway vehicles, conveyor belts, bolts, nuts. There will be no corrosion, pitting, rust or wear. Stainless steel is also one of the strongest materials among construction metal materials. Because stainless steel has good corrosion resistance, it can make structural components permanently maintain the integrity of engineering design. Chromium-containing stainless steel also combines mechanical strength and high extensibility. It is easy to process and manufacture parts and has good ductility. It is used to form products. It can also be hardened by machine speed. Good weldability. Wear resistance and fatigue strength are better than 304 stainless steel. At high temperatures, it has both oxidation resistance and gas medium corrosion resistance, namely thermal stability, and at high temperatures, both have sufficient strength, ie, thermal strength.

 

chemical composition:

Grade	C≤	Si≤	Mn≤	S≤	P≤	Cr	Ni
1CR17NI7	0.15	1.00	2.00	0.030	0.035	16.00 18.00	6.00 8.00

 

Mechanical properties

Tensile strength σb (MPa): ≥520

Conditional yield strength σ0.2 (MPa): ≥205

Elongation δ5 (%): ≥40

Section shrinkage ψ (%): ≥60

Hardness: ≤187HB; ≤90HRB; ≤200HV

Heat treatment

Heat treatment specification: solid solution 1010 ～ 1150 ℃ quick cooling.

Metallographic structure: The structure is characterized by austenite.

 

Delivery status:

generally delivered in a heat-treated state, the type of heat treatment is indicated in the contract; if not specified, the delivery will be in the state of no heat treatment.