大型铸件用不锈铸钢的热处理与力学性能
钢 号 |
热 处 理 |
力学性能(不小于) |
硬度 HBS |
|||
σb /MPa |
σs /MPa |
δ (%) |
φ (%) |
|||
ZG15Cr13 |
(1)加热到≤995℃,空冷,并在595℃ 回火;或(2)在790℃ 退火 |
620 |
450 |
18 |
30 |
≤241 |
ZG20Cr13 |
580 |
392 |
16 |
35 |
170~235 |
|
ZG30Cr13 |
690 |
485 |
15 |
25 |
≤269 |
|
ZG12Cr18Ni9Ti |
加热≥1040℃,保温足够时间,水淬或其他快冷 |
440 |
195 |
25 |
32 |
--- |
ZG06Cr13Ni14Mo |
(1)退火应>600℃;(2)正火和淬火;在AC3以上进行;(3)回火;在AC1上下进行一次或二次回火 |
760 |
550 |
15 |
35 |
≥220 |
ZG06Cr13Ni16Mo |
750 |
550 |
15 |
35 |
≥220 |
|
ZG09Cr19Ni9 |
加热到≥1040℃,保温足够时间,水淬或其他快冷(本人实验证明1020℃也可以) |
485 |
205 |
35 |
--- |
--- |
ZG08Cr19Ni11Mo3 |
520 |
240 |
25 |
--- |
--- |
|
ZG12Cr22Ni12 |
485 |
195 |
35 |
--- |
--- |
|
ZG20Cr25Ni20 |
加热到≥1040℃,保温足够时间,水淬或其他快冷 |
450 |
195 |
30 |
--- |
--- |
ZG12Cr17Mn9Ni4Mo3Cu2N |
加热到≥1100~1150℃,保温足够时间,水淬或其他快冷 |
588 |
294 |
25 |
35 |
--- |
ZG12Cr18Mn13Mo2Cu2N |
588 |
294 |
30 |
40 |
--- |
大型铸件用不锈铸钢的钢号与化学成分
单位:(质量分数)(%)
钢 号 |
C |
Si |
Mn |
P ≤ |
S ≤ |
Cr |
Ni |
Mo |
其他 |
ZG15Cr13 (ZG1Cr13) |
≤0.15 |
≤1.50 |
≤1.00 |
0.040 |
0.040 |
11.5~ 14.0 |
≤1.00 |
≤0.05 |
--- |
ZG20Cr13 (ZG2Cr13) |
0.16~ 0.24 |
≤1.00 |
≤0.60 |
0.030 |
0.035 |
11.5~ 14.0 |
--- |
--- |
--- |
ZG30Cr13 (ZG3Cr13 |
0.20~ 0.40 |
≤1.50 |
≤1.00 |
0.040 |
0.040 |
11.5~ 14.0 |
≤1.00 |
≤0.05 |
--- |
ZG12Cr18Ni9Ti (ZG1Cr18Ni9Ti) |
≤0.12 |
≤1.50 |
0.80~ 2.00 |
0.030 |
0.040 |
17.0~ 20.0 |
8.00~ 11.00 |
Ti5(C—0.03)~0.80 |
|
ZG06Cr13Ni4Mo (ZG0Cr13Ni4Mo) |
≤0.06 |
≤1.00 |
≤1.00 |
0.030 |
0.030 |
11.5~ 14.0 |
3.50~ 4.50 |
0.40~ 1.00 |
|
ZG06Cr13Ni6Mo (ZG0Cr13Ni6Mo) |
≤0.06 |
≤0.70 |
≤0.80 |
0.030 |
0.030 |
12.0~ 14.0 |
5.50~ 6.50 |
0.40~ 1.00 |
|
ZG08Cr19Ni9 (ZG0Cr19Ni9) |
≤0.08 |
≤2.00 |
≤1.50 |
0.040 |
0.040 |
17.0~ 21.0 |
8.00~ 11.00 |
||
ZG08Cr19Ni11Mo3 (ZG0Cr19Ni11Mo3) |
≤0.08 |
≤1.50 |
≤1.50 |
0.040 |
0.040 |
18.0~ 21.0 |
9.00~ 13.00 |
3.00 4.00 |
|
ZG12Cr22Ni12 (ZG1Cr22Ni12) |
≤0.12 |
≤2.00 |
≤1.50 |
0.040 |
0.040 |
20.0~ 23.0 |
10.00~ 13.00 |
||
ZG20Cr25Ni20 (ZG20Cr25Ni20) |
≤0.20 |
≤2.00 |
≤1.50 |
0.040 |
0.040 |
23.0~ 27.0 |
19.00~ 31.00 |
||
ZG12Cr17Mn9Ni4Mo3Cu2N (ZG1Cr17Mn9Ni4Mo3Cu2N) |
≤0.12 |
≤1.50 |
8.00~ 10.00 |
0.060 |
0.035 |
16.00~ 19.00 |
3.00~ 5.00 |
2.90~ 3.50 |
Cu 2.00~250; N 0.16~0.26 |
ZG12Cr18Mn13Mo2CuN (ZG1Cr18Mn13Mo2CuN) |
≤0.12 |
≤1.50 |
12.00~ 14.00 |
0.060 |
0.035 |
17.00~ 20.00 |
--- |
1.50~ 2.00 |
Cu 1.00~1.50; N 0.19~0.26 |