牌號 | 退火 處理 | 抗拉試驗 | 硬 度 | 180°彎曲試驗 d為彎心直徑 a為鋼帶厚度 | |||
óO.2 | ób | δ5 (%)≥ | HRB ≤ | HV ≤ | |||
/MPa≥ | |||||||
1Crl2 | ① | 205 | 440 | 20 | 93 | 210 | d=2a |
0Crl3 | ② | 205 | 410 | 20 | 88 | 200 | d=2a |
1Crl3 | ② | 205 | 440 | 20 | 93 | 210 | d=2a |
420J1 | ① | 225 | 520 | 18 | 97 | 234 | |
420J2 | ② | 225 | 540 | 18 | 99 | 247 | |
3Crl6 | ② | 225 | 520 | 18 | 100 | 253 | |
7Crl7 | ② | 245 | 590 | 15 | HRC25 | 269 | |
牌 號 | 熱處理溫度/℃ | 洛氏硬度HRC ≥ | |
淬 火 | 回 火 | ||
420J1 | 980~1040快冷 | 150~400空冷 | 40 |
7Crl7 | 1010~1070快冷 | 150~400空冷 | 40 |
厚 度 | 寬 度 | |||
20~150 | >150~250 | >250~400 | >400~600 | |
0.05~O.10 | 土O.010 | ±0.010 | ±0.010 | |
>0.10~O.15 | 士O.010 | ±O.010 | ±0.010 | |
>O.15~0.25 | +O.010 -O.020 | +0.0lO -O.020 | +O.OlO -O.020 | ±O.020 |
>O.25~0.45 | ±O.020 | ±O.020 | ±O.020 | +O.020 -O.030 |
>O.45~O.65 | +0.020 -O.030 | +0.020 -O.030 | +0.020 -O.030 | ±O.030 |
>O.65~0.90 | ±O.030 | ±O.030 | ±O.030 -0.040 | ±O.040 |
>O.90~1.20 | +0.030 ~O.040 | ±0.040 | ±0.040 | +0.040 -0.050 |
>1.20~1.50 | +O.040 -0.050 | ±O.050 | ±O.050 | +0.050 ~O.060 |
>1.50~1.80 | ±0.060 | +0.060 -0.070 | +O.060 -0.070 | ±0.070 |
>1.80~2.00 | ±O.060 | ±O.070 | +0.070 -O.080 | ±O.080 |
>2.00-2.30 | ±0.070 | ±0.080 | +O.08 -0.09 | ±0.090 |
>2.30~2.50 | ±O.070 | ±O.080 | +O.08 -0.09 | ±0.090 |
>2.50~3.10 | ±O.080 | ±0.090 | +0.09 ~O.10 | ±O.100 |
>3.10~<4.00 | ±O.090 | ±O.100 | +0.10 -O.1l | ±0.110 |
牌 號 | 化學成分(質(zhì)量分數(shù))(%) | |||||||||
C | Si | Mn | P | S | Ni | Cr | M0 | 其他 | ||
馬氏體型 | ||||||||||
lCrl2 | ≤ O.15 | ≤0.50 | ≤1.00 | ≤0.035 | ≤O.030 | ③ | L1.50~13.00 | | | |
lCrl3 | ≤ O.15 | ≤1.00 | ≤1.00 | ≤0.035 | ≤O.030 | ③ | 13.50~11.50 | | | |
0Crl3 | ≤O.08 | ≤1.00 | ≤1.00 | ≤O.035 | ≤O.030 | ③ | 13.50~ 11.50 | | | |
YlCrl3 | ≤ O.15 | ≤1.00 | ≤1.25 | ≤O.060 | ≥O.15 | ③ | 12.00~14.00 | ① | | |
lCrl3M0 | O.08~ 0.18 | ≤0.60 | ≤1.00 | ≤O.035 | ≤0.030 | ③ | 11.50~14.00 | 0.30~0.60 | | |
420J1 | 0.16 ~O.25 | ≤1.00 | ≤1.00 | ≤O.035 | ≤O.030 | ③ | 12.00~14.00 | | | |
420J2 | O.26~ O.35 | ≤1.00 | ≤1.00 | ≤O.035 | ≤O.030 | ③ | 12.00~14.00 | | | |
Y3Crl3 | O.26~ O.40 | ≤1.00 | ≤1.25 | ≤O.060 | ≥0.15 | ③ | 12.00~14.00 | ① | | |
3Crl3M0 | O.28 ~ 0.35 | ≤0.80 | ≤1.00 | ≤0.035 | ≤O.030 | ③ | 12.00~14.00 | O.50~1.00 | | |
4Crl3 | 0.36~ O.45 | ≤O.60 | ≤0.80 | ≤O.035 | ≤0.030 | ③ | 12.00~ 14.00 | | | |
1Crl7N2 | 0.11~0.17 | ≤O.80 | ≤O.80 | ≤0.035 | ≤O.030 | 1.50~2.50 | 16.00~18.00 | | | |
7Crl7 | O.60~ O.75 | ≤1.00 | ≤1.00 | ≤0.035 | ≤O.030 | ③ | 16.00~18.00 | ① | | |
8Cr17 | 0.75~ O.95 | ≤1.00 | ≤1.00 | ≤O.035 | ≤O.030 | ③ | 16.00~18.00 | ④ | | |
9Crl8 | 0.90~ 1.00 | ≤O.80 | ≤0.80 | ≤O.035 | ≤0.030 | ③ | 17.00~19.00 | ④ | | |
llCrl7 | O.95~ 1.20 | ≤1.00 | ≤1.00 | ≤O.035 | ≤0.030 | ③ | 16.00~18.00 | ④ | | |
YllCrl7 | O.95~ 1.20 | ≤1.00 | ≤1.25 | ≤0.060 | ≥O.15 | ③ | 16.00~18.00 | ④ | | |
9Crl8Mo | O.95~ 1.10 | ≤0.80 | ≤O.80 | ≤O.035 | ≤0.030 | ③ | 16.00~18.00 | 0.40~0.70 | | |
9Crl8MoV | O.85~ 0.95 | ≤O.80 | ≤0.80 | ≤O.035 | ≤O.030 | ③ | 17.00~19.00 | 1.00~ 1.30 | V0.07 ~O.012 |
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