MATERIAL CATEGORY: High temperature martensitic high content chromium round bar and forge piece
MATERIAL SPECIFICATIONS: ASTM A565
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.20 ～ 0.25Si (％): ≤ 0.50Mn (％): 0.50 ～ 1.00P (％)≤: 0.025S (％)≤: 0.015Cr (％): 11.0 ～ 13.5Ni (％): 0.50 ～ 1.00Mo (％): 0.90 ～ 1.25W (％): 0.90 ～ 1.25
V (%): 0.20 ～ 0.30
Others (%): Cu ≤ 0.50
MECHANICAL PROPERTIES / HEAT TREATMENT OR Q/T
Condition of heat treatment: Annealed Tensile strength, σb ≥/MPa: -Yield strength, σ0.2 ≥/MPa:-
Elongation, δ ≥(％): -Reduction of area, ф ≥(％): -Hardness | HRS: ≤248
Condition of heat treatment: T, middle tempered Tensile strength, σb ≥/MPa: -Yield strength, σ0.2 ≥/MPa:-
Elongation, δ ≥(％): -Reduction of area, ф ≥(％): -Hardness | HRS: ≤285
Condition of heat treatment: HT 1022℃ ~ 1050℃ air or oil cooled, ≥620℃ X 2H, tempered
Tensile strength, σb ≥/MPa: 965Yield strength, σ0.2 ≥/MPa: 760
Elongation, δ ≥(％): 13.0Reduction of area, ф ≥(％): 30.0Hardness | HRS: 302 ~ 352
Condition of heat treatment: H 1022℃ ~ 1050℃ air or oil cooled, ≥677℃ X 2H, tempered
Tensile strength, σb ≥/MPa: 825Yield strength, σ0.2 ≥/MPa: 585
Elongation, δ ≥(％): 17.0Reduction of area, ф ≥(％): 35.0Hardness | HRS: 241 ~ 285
