牌 號① | 化學成分(質量分數)(%) | |||||||||
C | S | Mn | Cr | M0 | Ni | Cu | W | S | P | |
KmTBMn5W3 | 3.O~3.5 | O.8~1.3 | 4.0~6.0 | --- | --- | --- | --- | 2.5~3.5 | ≤0.10 | ≤0.15 |
KmTBW5Cr4 | 2.5~3.5 | O.5~1.0 | O.5~1.0 | 3.5~4.5 | --- | --- | --- | 4.5~5.5 | ≤0.10 | ≤0.15 |
KmTBNi4Cr2-DT | 2.7~3.2 | 0.3~0.8 | O-3~0.8 | 2.O~3.O | O~1.O | 3.O~5.0 | --- | --- | ≤O.10 | ≤O.15 |
KmTBNi4Cr2-GT | 3.2~3.6 | 0.3~O.8 | O-3~0.8 | 2.O~3.O | O~1.0 | 3.0~5.0 | --- | --- | ≤0.10 | ≤0.15 |
KmTBCr9Ni5Si2 | 2.5~3.6 | 1.5~2.2 | 0.3~0.8 | 8.O~10.O | 0~1.0 | 4.5~6.5 | --- | --- | ≤O.10 | ≤O.15 |
KmTBCr2MolCul | 2.4~3.6 | ≤1.0 | 1.O~2.0 | 2.0~3.0 | 0.5~1.0 | --- | 0.8~1.2 | --- | ≤O.10 | ≤0.15 |
KmTBCr15Mo2-DT | 2.O~2.8 | ≤1.0 | 0.5~1.0 | 13.0~18.O | 0.5~2.5 | O~1.0 | O~1.2 | --- | ≤0.06 | ≤0.10 |
KmTBCr15Mo2-GT | 2.8~3.5 | ≤1.0 | 0.5~1.0 | 13.0~18.O | 0.5~3.0 | O~1.O | O~1.2 | --- | ≤0.06 | ≤O.10 |
KmTBCr20Mo2Cul | 2.0~3.0 | ≤1.0 | 0.5~1.0 | 18.O~22.0 | 1.5~2.1 | 0~1.5 | 0.8~1.2 | --- | ≤O.06 | ≤O.10 |
KmTBCr26 | 2.3~3.0 | ≤1.O | 0.5~1.0 | 23.0~28.0 | 0~1.0 | O~1.5 | 0~2.0 | --- | ≤0.06 | ≤O.10 |
牌 號 | 洛氏硬度HRC | 牌 號 | 洛氏硬度HRc | ||||
鑄態 | 淬火態 | 軟化退火態 | 鑄態 | 淬火態 | 軟化退火態 | ||
KmTBMn5W3 | 50~60 | --- | --- | KmTBCr2M0lCul | 50~56 | ≥56 | ≤40 |
KmTBW5Cr4 | 50~65 | --- | --- | KmTBCrl5M02一DT | 40~56 | ≥58 | ≤40 |
KmTBNi4r2-TD | --- | ≥53① | --- | KmTBCr l5M02-GT | 50~58 | ≥58 | ≤40 |
KmTBNi4r2-GD | --- | ≥55① | --- | KmTBCr20MoCul | 50~58 | ≥58 | ≤40 |
KmTBCr9Ni5Si2 | --- | ≥55 | --- | KmTBCr26 | 50~58 | ≥55 | ≤40 |
牌 號 | 金相組織 | 使用特性 | |
鑄 態 | 淬火態 | ||
KmTBMnSW3 | 共晶碳化物(Fe、Mn、W)3C+馬氏體+殘餘奧氏體 | --- | 適於較小衝擊載荷的磨料磨損 |
KmTBWSCr4 | 共晶碳化物(Fe、w、Cr)3C+馬氏體+殘餘奧氏體 | --- | |
KmTBNi4Cr2-DT | 回火態 共晶碳化物(Fe、Cr)3C+馬氏體+貝氏體+殘餘奧氏體 | --- | 適於中等衝擊載荷的磨料磨損 |
KmTBNi4Cr2-GT | 適於較小衝擊載荷的磨料磨損 | ||
KmTBCr9Ni5Si2 | 共晶碳化物[(Cr、Fe)7C 3+(n、Cr) 3C]+馬氏體+殘餘奧氏體 | 共晶碳化物[(Cr、Fe) 7C 3+(Fe、Cr) 3C]+二次碳化物+馬氏體+殘餘奧氏體 | 有很好淬透性,適於較 大衝擊載荷的磨料磨損 |
KmTBCr2MolCul | 共晶碳化物(Fe、Cr) 3C+索氏體+馬氏體 | 共晶碳化物(Fe、Cr) 3C+二次碳化物+馬氏體+殘餘奧氏體 | 適於較小衝擊載荷的磨料磨損 |
KmTBCrl5M02-DT | 共晶碳化物(Cr、Fe) 7C 3+奧氏體及其轉變產物 | 共晶碳化物(Cr、Fe) 7C 3+二次碳化物+馬氏體+殘餘奧氏體 | 適於較小衝擊載荷的磨料磨損 |
KmTBCrlSM02-GT | 適於中等衝擊載荷的磨料磨損 | ||
KmTBCr20MO2Cul | 共晶碳化物(Cr、Fe) 7C 3+奧氏體及其轉變產物 | 共晶碳化物(cr、Fe) 7C 3+二次碳化物+馬氏體+殘餘奧氏 | 有很好淬透性,適於較大衝擊載荷的磨料磨損 |
KmTBCr26 | 共晶碳化物(cr、Fe) 7C 3+奧氏體 | 有良好抗蝕性和抗高溫氧化性,適於較大衝擊載荷的磨料磨損 |