Thành phần hóa học của mác thép không gỉ
|
Stainless steel designations |
SAE
designation |
% Cr |
% Ni |
% C |
% Mn |
% Si |
% P |
% S |
% N |
Other |
|
Austenitic |
|
201 |
16-18 |
3.5-5.5 |
0.15 |
5.5-7.5 |
0.75 |
0.06 |
0.03 |
0.25 |
- |
|
202 |
17-19 |
4-6 |
0.15 |
7.5-10 |
0.75 |
0.06 |
0.03 |
0.25 |
- |
|
205 |
16.5-18 |
1-1.75 |
0.12-0.25 |
14-15.5 |
0.75 |
0.06 |
0.03 |
0.32-0.4 |
- |
|
301 |
16-18 |
6-8 |
0.15 |
2 |
0.75 |
0.045 |
0.03 |
- |
- |
|
302 |
17-19 |
8-10 |
0.15 |
2 |
0.75 |
0.045 |
0.03 |
0.1 |
- |
|
302B |
17-19 |
8-10 |
.15 |
2 |
2-3 |
0.045 |
0.03 |
- |
- |
|
303 |
17-19 |
8-10 |
0.15 |
2 |
1 |
0.2 |
0.15 min |
- |
Mo 0.6 (optional) |
|
303Se |
17-19 |
8-10 |
0.15 |
2 |
1 |
0.2 |
0.06 |
- |
0.15 Se min |
|
304 |
18-20 |
8-10.5 |
0.08 |
2 |
0.75 |
0.045 |
0.03 |
0.1 |
- |
|
304L |
18-20 |
8-12 |
0.03 |
2 |
0.75 |
0.045 |
0.03 |
0.1 |
- |
|
304Cu |
17-19 |
8-10 |
0.08 |
2 |
0.75 |
0.045 |
0.03 |
- |
3-4 Cu |
|
304N |
18-20 |
8-10.5 |
0.08 |
2 |
0.75 |
0.045 |
0.03 |
0.1-0.16 |
- |
|
305 |
17-19 |
10.5-13 |
0.12 |
2 |
0.75 |
0.045 |
0.03 |
- |
- |
|
308 |
19-21 |
10-12 |
0.08 |
2 |
1 |
0.045 |
0.03 |
- |
- |
|
309 |
22-24 |
12-15 |
0.2 |
2 |
1 |
0.045 |
0.03 |
- |
- |
|
309S |
22-24 |
12-15 |
0.08 |
2 |
1 |
0.045 |
0.03 |
- |
- |
|
310 |
24-26 |
19-22 |
0.25 |
2 |
1.5 |
0.045 |
0.03 |
- |
- |
|
310S |
24-26 |
19-22 |
0.08 |
2 |
1.5 |
0.045 |
0.03 |
- |
- |
|
314 |
23-26 |
19-22 |
0.25 |
2 |
1.5-3 |
0.045 |
0.03 |
- |
- |
|
316 |
16-18 |
10-14 |
0.08 |
2 |
0.75 |
0.045 |
0.03 |
0.1 |
2-3 Mo |
|
316L |
16-18 |
10-14 |
0.03 |
2 |
0.75 |
0.045 |
0.03 |
0.1 |
2-3 Mo |
|
316F |
16-18 |
10-14 |
0.08 |
2 |
1 |
0.2 |
0.1 min |
- |
1.75-2.5 Mo |
|
316N |
16-18 |
10-14 |
0.08 |
2 |
0.75 |
0.045 |
0.03 |
0.1-0.16 |
2-3 Mo |
|
317 |
18-20 |
11-15 |
0.08 |
2 |
0.75 |
0.045 |
0.03 |
0.1 max |
3-4 Mo |
|
317L |
18-20 |
11-15 |
0.03 |
2 |
0.75 |
0.045 |
0.03 |
0.1 max |
3-4 Mo |
|
321 |
17-19 |
9-12 |
0.08 |
2 |
0.75 |
0.045 |
0.03 |
0.1 max |
Ti 5(C+N) min, 0.7 max |
|
329 |
23-28 |
2.5-5 |
0.08 |
2 |
0.75 |
0.04 |
0.03 |
- |
1-2 Mo |
|
330 |
17-20 |
34-37 |
0.08 |
2 |
0.75-1.5 |
0.04 |
0.03 |
- |
- |
|
347 |
17-19 |
9-13 |
0.09 |
2 |
0.75 |
0.045 |
0.03 |
- |
Nb+Ta, 10xC min, 1 max |
|
348 |
17-19 |
9-13 |
0.10 |
2 |
0.75 |
0.045 |
0.03 |
- |
Nb+Ta, 10xC min, 1 max,
but 0.1 Ta max; 0.2 Ca |
|
384 |
15-17 |
17-19 |
0.11 |
2 |
1 |
0.045 |
0.03 |
- |
- |
|
904L |
19-23 |
23-28 |
0.02 |
2 |
1 |
0.045 |
0.035 |
- |
Mo 4-5, Cu 1-2 |
|
Ferritic |
|
405 |
11.5-14.5 |
- |
0.08 |
1 |
1 |
0.04 |
0.03 |
- |
0.1-0.3 Al, 0.6 max |
|
409 |
10.5-11.75 |
0.05 |
0.08 |
1 |
1 |
0.045 |
0.03 |
- |
Ti 6xC, but 0.75 max |
|
429 |
14-16 |
0.75 |
0.12 |
1 |
1 |
0.04 |
0.03 |
- |
- |
|
430 |
16-18 |
0.75 |
0.12 |
1 |
1 |
0.04 |
0.03 |
- |
- |
|
430F |
16-18 |
- |
0.12 |
1.25 |
1 |
0.06 |
0.15 min |
- |
0.6 Mo (optional) |
|
430FSe |
16-18 |
- |
0.12 |
1.25 |
1 |
0.06 |
0.06 |
- |
0.15 Se min |
|
434 |
16-18 |
- |
0.12 |
1 |
1 |
0.04 |
0.03 |
- |
0.75-1.25 Mo |
|
436 |
16-18 |
- |
0.12 |
1 |
1 |
0.04 |
0.03 |
- |
0.75-12.5 Mo;
Nb+Ta 5xC min, 0.7 max |
|
442 |
18-23 |
- |
0.2 |
1 |
1 |
0.04 |
0.03 |
- |
- |
|
446 |
23-27 |
0.25 |
0.2 |
1.5 |
1 |
0.04 |
0.03 |
- |
- |
|
Martensitic |
|
403 |
11.5-13 |
0.6 |
0.15 |
1 |
0.5 |
0.04 |
0.03 |
- |
- |
|
410 |
11.5-13.5 |
0.75 |
0.15 |
1 |
1 |
0.04 |
0.03 |
- |
- |
|
414 |
11.5-13.5 |
1.25-2.5 |
0.15 |
1 |
1 |
0.04 |
0.03 |
- |
- |
|
416 |
12-14 |
- |
0.15 |
1.25 |
1 |
0.06 |
0.15 min |
- |
0.06 Mo (optional) |
|
416Se |
12-14 |
- |
0.15 |
1.25 |
1 |
0.06 |
0.06 |
- |
0.15 Se min |
|
420 |
12-14 |
- |
0.15 min |
1 |
1 |
0.04 |
0.03 |
- |
- |
|
420F |
12-14 |
- |
0.15 min |
1.25 |
1 |
0.06 |
0.015 min |
- |
0.6 Mo max (optional) |
|
422 |
11-12.5 |
0.5-1 |
0.2-0.25 |
0.5-1 |
0.5 |
0.025 |
0.025 |
- |
0.9-1.25 Mo;
0.2-0.3 V; 0.9-1.25 W |
|
431 |
15-17 |
1.25-2.5 |
0.2 |
1 |
1 |
0.04 |
0.03 |
- |
- |
|
440A |
16-18 |
- |
0.6-0.75 |
1 |
1 |
0.04 |
0.03 |
- |
0.75 Mo |
|
440B |
16-18 |
- |
0.75-0.95 |
1 |
1 |
0.04 |
0.03 |
- |
0.75 Mo |
|
440C |
16-18 |
- |
0.95-1.2 |
1 |
1 |
0.04 |
0.03 |
- |
0.75 Mo |
|
Heat resisting |
|
501 |
4-6 |
- |
0.1 min |
1 |
1 |
0.04 |
0.03 |
- |
0.4-0.65 Mo |
|
502 |
4-6 |
- |
0.1 |
1 |
1 |
0.04 |
0.03 |
- |
0.4-0.65 Mo |
|
Martensitic precipitation hardening |
|
630 |
15-17 |
3-5 |
0.07 |
1 |
1 |
0.04 |
0.03 |
- |
Cu 3-5, Ta 0.15-0.45 |