● Features and application:
There are certain high temperature strength and oxidation resistance, and better resistance to sulfur and increased resistance to carbon. For the hanging bracket, carburizing furnace elements, furnace conveyor, tray, furnace claws and so on.
● Chemical Composition:
Carbon C: 0.22 ~ 0.30
Si Si: 1.40 ~ 2.20
Manganese Mn: 10.50 ~ 12.50
Sulfur S: ≤ 0.030
Phosphorus P: ≤ 0.060
Chromium Cr: 17.00 ~ 19.00
N N: 0.22 ~ 0.33
● Mechanical Properties:
Tensile strength σb (MPa): ≥ 685
Conditions yield strength σ0.2 (MPa): ≥ 390
Elongation δ5 (%): ≥ 35
Reduction of area ψ (%): ≥ 45
Hardness: ≤ 248HB
● Heat treatment and microstructure specifications:
Standard heat treatment: solution 1100 ~ 1150 ℃ fast-cooling.
Microstructure: Organizing for the austenitic type.
● Delivery status: the state generally regulate heat delivery, the treatment types specified in the contract; not indicated, according to the heat treatment state of delivery.
There are certain high temperature strength and oxidation resistance, and better resistance to sulfur and increased resistance to carbon. For the hanging bracket, carburizing furnace elements, furnace conveyor, tray, furnace claws and so on.
● Chemical Composition:
Carbon C: 0.22 ~ 0.30
Si Si: 1.40 ~ 2.20
Manganese Mn: 10.50 ~ 12.50
Sulfur S: ≤ 0.030
Phosphorus P: ≤ 0.060
Chromium Cr: 17.00 ~ 19.00
N N: 0.22 ~ 0.33
● Mechanical Properties:
Tensile strength σb (MPa): ≥ 685
Conditions yield strength σ0.2 (MPa): ≥ 390
Elongation δ5 (%): ≥ 35
Reduction of area ψ (%): ≥ 45
Hardness: ≤ 248HB
● Heat treatment and microstructure specifications:
Standard heat treatment: solution 1100 ~ 1150 ℃ fast-cooling.
Microstructure: Organizing for the austenitic type.
● Delivery status: the state generally regulate heat delivery, the treatment types specified in the contract; not indicated, according to the heat treatment state of delivery.
