|
牌號 |
化學成分(質量分數)(%) |
|
|
|
|
|
C |
Si |
Mn |
Cr |
其 他 |
|
|
ML08 |
0.05~0.12 |
≤0.03 |
O.20~0.50 |
O.7~1.0 |
|
|
MLlO |
0.07~O.14 |
|
|
|
|
|
MLl5 |
O.12~O.19 |
≤0.07 |
|
|
|
|
M120 |
0.17~0.24 |
|
|
|
|
|
ML25 |
0.22~O.30 |
≤O.20 |
0.30~O.60 |
|
|
|
ML30 |
O.27~O.35 |
|
|
|
|
|
ML35 |
0.32~O.40 |
|
|
|
|
|
ML40 |
O.37~0.45 |
|
|
|
|
|
ML45 |
0.42~0.50 |
|
|
|
|
|
ML2SMn |
0.22~O.30 |
≤0.25 |
0.50~O.80 |
|
|
|
MIJ30Mn |
O.27~0.35 |
|
|
|
|
|
ML35Mn |
O.32~0.40 O.37~O.45 |
|
|
|
|
|
ML40Mn |
|
|
|
|
|
|
ML45Mn |
O.42~O.50 |
|
|
|
|
|
MLl5Cr |
O.12~O.18 |
≤0.30 |
0.40~O.70 |
|
|
|
ML20Cr |
O.17~0.24 |
O.50~O.80 |
|
|
|
|
ML40Cr |
0.37~0.44 |
O.80~1.10 |
|
|
|
|
MLl5MnB |
O.14~O.20 |
1.20~1.60 |
|
BO.0005~O.0035 |
|
|
MLl5MnVB |
O.12~0.18 |
V0.07~O.12 BO.0005~0.0035 |
|
|
|
|
ML20MnT-B |
O.17~O.24 |
1.30~1.60 |
|
BO.0005~0.0035 TjO.04~O.10 |
|
|
M100CrMo |
O.26~O.34 |
0.40~0.70 |
O.80~1.10 |
Mo0.15~0.25 |
|
|
ML35CrMo |
0.32~0.40 |
O.40~O.70 |
|
|
|
|
ML42CrM0 |
0.38~0.45 |
O.50~0.80 |
O.90~1.20 |
|
|
ML25ML30ML35ML40ML45ML35MnML40MnML45MnML20CrML40CrML35CrMo
|
牌號 |
抗拉強度 ób |
屈服點ós |
伸長率ó5 |
斷面收縮率Ψ |
沖擊韌度ak |
硬 度 |
|
|
|
熱軋 |
退火 |
|
|
|
|
|
|
|
|
MPa |
% |
J/cm2 |
壓痕直徑 /mm |
布氏硬度 HBS |
壓痕直徑 /mm |
布氏硬度 HBS |
|
|
|
≥ |
≥ |
≤ |
≥ |
≤ |
|
|
|
|
|
ML08 |
334 |
196 |
33 |
60 |
|
5.2 |
131 |
|
|
MLl0 |
333 |
206 |
3l |
55 |
5.1 |
137 |
|
|
|
MLl5 |
377 |
226 |
27 |
55 |
5.0 |
1,13 |
|
|
|
ML20 |
412 |
245 |
25 |
55 |
4.8 |
156 |
|
|
|
M125 |
451 |
275 |
23 |
50 |
4.6 |
170 |
|
|
|
ML30 |
490 |
296 |
2l |
50 |
4.5 |
179 |
|
|
|
M135 |
530 |
314 |
20 |
45 |
4.4 |
187 |
|
|
|
ML40 |
569 |
333 |
19 |
45 |
4.1 |
217 |
4.4 |
187 |
|
ML45 |
598 |
353 |
16 |
40 |
4.0 |
229 |
4.3 |
197 |
|
ML25Mn |
451 |
275 |
23 |
50 |
4.6 |
170 |
|
|
|
ML30Mn |
490 |
294 |
21 |
50 |
4.5 |
179 |
|
|
|
ML35Mn |
530 |
314 |
20 |
45 |
4.4 |
187 |
|
|
|
ML40Mn |
569 |
333 |
19 |
45 |
4.1 |
217 |
4.4 |
187 |
|
ML45Mn |
598 |
353 |
16 |
40 |
4.0 |
229 |
4.3 |
197 |
|
MLl5Cr |
686 |
490 |
lO |
45 |
69 |
|
4.5 |
179 |
|
ML20Cr |
785 |
588 |
lO |
40 |
59 |
|
|
|
|
ML4OCr |
981 |
785 |
9 |
45 |
59 |
4.2 |
207 |
|
|
MLl5MnB |
1128 |
932 |
9 |
69 |
|
|
|
|
|
MLl5MnVB |
1079 |
883 |
10 |
4.2 |
207 |
|
|
|
|
ML20MnTiB |
1128 |
932 |
|
4.4 |
187 |
|
|
|
|
M130CrMo |
932 |
785 |
12 |
50 |
78 |
|
4.0 |
229 |
|
M135CrMo |
981 |
834 |
45 |
|
|
|
|
|
|
ML42CrMo |
1079 |
932 |
4.1 |
217 |
|
|
|
|
沖擊韌度aML25MnML30MnML20MnTiBML42CrMo
|
牌 號 |
試樣熱處理制度 |
|
ML08、MLlO、MLl5、ML20、ML25、 ML30、ML35、ML40、ML45、ML25Mn、ML30Mn、ML35Mn、ML4OMn、ML45Mn |
加熱到高于臨界點30~50℃，保溫30min以上，空冷 |
|
MLl5Cr、ML20Cr |
一次淬火880℃，二次淬火800℃，水、油冷，回火200℃，水、空冷 |
|
ML40Cr |
淬火850℃，油冷，回火520℃，水、油冷 |
|
MLl5MnB |
淬火880℃，水冷，回火200℃，水、空冷 |
|
MLl5MnVB |
淬火880℃，油冷，回火200℃，水、空冷 |
|
ML20MnTiE |
淬火860℃，油冷，回火200℃，水、空冷 |
|
ML30CrMo |
淬火880℃，水、油冷，回火540℃，水、油冷 |
|
ML35CrMo |
淬火850℃，油冷，回火550℃，水、油冷 |
|
ML42CrMo |
淬火850℃，油冷，回火560℃，水、油冷 |
