不銹鋼的化學成分 提示信息
不銹鋼成分中的主要合金元素是鐵（Fe）和鉻（Cr），只有當Cr的百分比成分達到一定值時，鋼才具有耐蝕性。因此，不銹鋼金屬的鉻含量通常最低為 10.5_。不銹鋼中還含有C、P、S、Ni、Si、Mn、Mo、Ti、N、Cu等元素組成。不銹鋼的耐腐蝕性能隨著碳含量的增加而降低。因此，大多數不銹鋼的碳含量很低，最高C百分比含量不超過1.2_
化學性質
化學成分可以反映不銹鋼的化學性能。鉻、鎳和鉬的百分比越高，不銹鋼的耐腐蝕性能越好；碳含量越高，不銹鋼的耐腐蝕性就越差。
不銹鋼成分百分比表圖
下表列出了各種不銹鋼的化學成分百分比，包括奧氏體SS如304、304L、316、316L、321、303、302、301、904L、201等，馬氏體SS如440A、440C、420等，鐵素體SS 430，雙相不銹鋼2205、2507、329等。
注_UOS（除非另有說明）
不銹鋼化學成分，百分比 (_) | ||||||||||
不銹鋼 | C，≤ | 錳，≤ | P，≤ | S，≤ | 硅，≤ | 鉻 | 你 | 莫 | N，≤ | 其他元素，≤，UOS |
304 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 18.0-20.0 | 8.0-11.0 | _ | _ | _ |
304L | 0.03 | 2.00 | 0.045 | 0.03 | 1.00 | 18.0-20.0 | 8.0-11.0 | _ | _ | _ |
316 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | _ | _ |
316L | 0.03 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | _ | _ |
321 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 17.0-19.0 | 9.0-12.0 | _ | 0.10 | ≥ Ti 5×(C+N)，≤ 0.70 |
201 | 0.15 | 5.50-7.50 | 0.06 | 0.03 | 1.00 | 16.0-18.0 | 3.5-5.5 | _ | 0.25 | _ |
202 | 0.15 | 7.50-10.00 | 0.06 | 0.03 | 1.00 | 17.0-19.0 | 4.0-6.0 | _ | 0.25 | _ |
205 | 0.12-0.25 | 14.0-15.5 | 0.06 | 0.03 | 1.00 | 16.5-18.0 | 1.0-1.7 | _ | 0.32-0.40 | _ |
301 | 0.15 | 2.00 | 0.045 | 0.03 | 1.00 | 16.0-18.0 | 6.0-8.0 | _ | 0.10 | _ |
301L | 0.03 | 2.00 | 0.045 | 0.03 | 1.00 | 16.0-18.0 | 6.0-8.0 | _ | 0.20 | _ |
301LN | 0.03 | 2.00 | 0.045 | 0.03 | 1.00 | 16.0-18.0 | 6.0-8.0 | _ | 0.07-0.20 | _ |
302 | 0.15 | 2.00 | 0.045 | 0.03 | 0.75 | 17.0-19.0 | 8.0-10.0 | _ | 0.10 | _ |
302B | 0.15 | 2.00 | 0.045 | 0.03 | 2.00-3.00 | 17.0-19.0 | 8.0-10.0 | _ | 0.10 | _ |
303 | 0.15 | 2.00 | 0.2 | ≥0.15 | 1.00 | 17.0-19.0 | 8.0-10.0 | _ | _ | _ |
303元 | 0.15 | 2.00 | 0.2 | 0.06 | 1.00 | 17.0-19.0 | 8.0-10.0 | _ | _ | 硒 0.15 |
304H | 0.04-0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 18.0-20.0 | 8.0-10.5 | _ | _ | _ |
304N | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 18.0-20.0 | 8.0-11.0 | _ | 0.10-0.16 | _ |
304LN | 0.03 | 2.00 | 0.045 | 0.03 | 1.00 | 18.0-20.0 | 8.0-11.0 | _ | 0.10-0.16 | _ |
305 | 0.12 | 2.00 | 0.045 | 0.03 | 1.00 | 17.0-19.0 | 11.0-13.0 | _ | _ | _ |
308 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 19.0-21.0 | 10.0-12.0 | _ | _ | _ |
309 | 0.2 | 2.00 | 0.045 | 0.03 | 1.00 | 22.0-24.0 | 12.0-15.0 | _ | _ | _ |
309S | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 22.0-24.0 | 12.0-15.0 | _ | _ | _ |
309H | 0.04-0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 22.0-24.0 | 12.0-15.0 | _ | _ | _ |
309Cb | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 22.0-24.0 | 12.0-16.0 | _ | _ | ≥ Cb 10 x C，≤1.10 |
309HCb | 0.04-0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 22.0-24.0 | 12.0-16.0 | _ | _ | ≥ Cb 10 x C，≤1.10 |
310 | 0.25 | 2.00 | 0.045 | 0.03 | 1.5 | 24.0-26.0 | 19.0-22.0 | _ | _ | _ |
310S | 0.08 | 2.00 | 0.045 | 0.03 | 1.5 | 24.0-26.0 | 19.0-22.0 | _ | _ | _ |
310H | 0.04-0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 24.0-26.0 | 19.0-22.0 | _ | _ | _ |
310Cb | 0.08 | 2.00 | 0.045 | 0.03 | 1.5 | 24.0-26.0 | 19.0-22.0 | _ | _ | ≥ Cb 10 x C，≤ 1.10 |
310摩爾 | 0.02 | 2.00 | 0.03 | 0.01 | 0.5 | 24.0-26.0 | 20.5-23.5 | 1.60-2.60 | 0.09-0.15 | _ |
314 | 0.25 | 2.00 | 0.045 | 0.03 | 1.50-3.00 | 23.0-26.0 | 19.0-22.0 | _ | _ | _ |
316H | 0.04-0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | _ | _ |
316鈦 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | 0.1 | ≥ Ti 5 × (C + N)，≤0.70 |
316Cb | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | 0.1 | ≥ Cb 10 × C，≤ 1.10 |
316N | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | 0.10-0.16 | _ |
316LN | 0.03 | 2.00 | 0.045 | 0.03 | 1.00 | 16.0-18.0 | 10.0-13.0 | 2.00-3.00 | 0.10-0.16 | _ |
317 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 18.0-20.0 | 11.0-15.0 | 3.0-4.0 | 0.1 | _ |
317L | 0.03 | 2.00 | 0.045 | 0.03 | 0.75 | 18.0-20.0 | 11.0-15.0 | 3.0-4.0 | 0.1 | _ |
317LM | 0.03 | 2.00 | 0.045 | 0.03 | 0.75 | 18.0-20.0 | 13.5-17.5 | 4.0-5.0 | 0.2 | _ |
317LMN | 0.03 | 2.00 | 0.045 | 0.03 | 0.75 | 17.0-20.0 | 13.5-17.5 | 4.0-5.0 | 0.10-0.20 | _ |
317LN | 0.03 | 2.00 | 0.045 | 0.03 | 0.75 | 18.0-20.0 | 11.0-15.0 | 3.0-4.0 | 0.10-0.22 | _ |
321 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 17.0-19.0 | 9.0-12.0 | _ | 0.1 | ≥ Ti 5 × (C + N)，≤ 0.70 |
321H | 0.04-0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 17.0-19.0 | 9.0-12.0 | _ | _ | ≥ Ti 4 × (C + N)，≤ 0.70 |
334 | 0.08 | 1.00 | 0.03 | 0.015 | 1.00 | 18.0-20.0 | 19.0-21.0 | _ | _ | 鋁 0.15-0.60, 鈦 0.15-0.60 |
347 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 17.0-19.0 | 9.0-12.0 | _ | _ | ≥ Cb 10 × C，≤ 1.00 |
347H | 0.04-0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 17.0-19.0 | 9.0-13.0 | _ | _ | ≥ Cb 8 × C，≤ 1.00 |
347LN | 0.005-0.020 | 2.00 | 0.045 | 0.03 | 1.00 | 17.0-19.0 | 9.0-13.0 | _ | 0.06-0.10 | Cb 0.20-0.50, 15 × C ≥ |
348 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 17.0-19.0 | 9.0-12.0 | _ | _ | Cb 10×C-1.10, Ta 0.10, Co 0.20 |
348H | 0.04-0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 17.0-19.0 | 9.0-13.0 | _ | _ | (Cb + Ta) 8×C ≥ , 1.00 ≤, Ta 0.10, Co 0.20 |
2205 | 0.03 | 2.00 | 0.03 | 0.02 | 1.00 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 0.14-0.20 | _ |
2304 | 0.03 | 2.5 | 0.04 | 0.03 | 1.00 | 21.5-24.5 | 3.0-5.5 | 0.05-0.60 | 0.05-0.60 | _ |
255 | 0.04 | 1.5 | 0.04 | 0.03 | 1.00 | 24.0-27.0 | 4.5-6.5 | 2.9-3.9 | 0.10-0.25 | 銅 1.50-2.50 |
2507 | 0.03 | 1.2 | 0.035 | 0.02 | 0.8 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 | 銅≤0.50 |
329 | 0.08 | 1.00 | 0.04 | 0.03 | 0.75 | 23.0-28.0 | 2.0-5.00 | 1.00-2.00 | _ | _ |
403 | 0.15 | 1.00 | 0.04 | 0.03 | 0.5 | 11.5-13.0 | _ | _ | _ | _ |
405 | 0.08 | 1.00 | 0.04 | 0.03 | 1.00 | 11.5-14.5 | 0.5 | _ | _ | 鋁 0.10-0.30 |
410 | 0.08-0.15 | 1.00 | 0.04 | 0.03 | 1.00 | 11.5-13.5 | _ | _ | _ | _ |
410S | 0.08 | 1.00 | 0.04 | 0.03 | 1.00 | 11.5-13.5 | 0.6 | _ | _ | _ |
414 | 0.15 | 1.00 | 0.04 | 0.03 | 1.00 | 11.5-13.5 | 1.25-2.50 | _ | _ | _ |
416 | 0.15 | 1.25 | 0.06 | ≥0.15 | 1.00 | 12.0-14.0 | _ | _ | _ | _ |
416元 | 0.15 | 1.25 | 0.06 | ≥0.06 | 1.00 | 12.0-14.0 | _ | _ | _ | 硒 0.15 |
420 | 0.15，≥ | 1.00 | 0.04 | 0.03 | 1.00 | 12.0-14.0 | _ | _ | _ | _ |
420F | 0.30-0.40 | 1.25 | 0.06 | ≥0.15 | 1.00 | 12.0-14.0 | 0.5 | _ | _ | 銅 0.60 |
420FSe | 0.20-0.40 | 1.25 | 0.06 | 0.15 | 1.00 | 12.0-14.0 | 0.5 | _ | _ | 硒 0.15；銅 0.60 |
422 | 0.20-0.25 | 0.50-1.00 | 0.025 | 0.025 | 0.5 | 11.0-12.5 | 0.50-1.00 | 0.90-1.25 | _ | V (0.20-0.30), W (0.90-1.25) |
429 | 0.12 | 1.00 | 0.04 | 0.03 | 1.00 | 14.0-16.0 | _ | _ | _ | _ |
430 | 0.12 | 1.00 | 0.04 | 0.03 | 1.00 | 16.0-18.0 | _ | _ | _ | _ |
430F | 0.12 | 1.25 | 0.06 | ≥0.15 | 1.00 | 16.0-18.0 | _ | _ | _ | _ |
430FSe | 0.12 | 1.25 | 0.06 | 0.06 | 1.00 | 16.0-18.0 | _ | _ | _ | 硒 0.15 |
439 | 0.03 | 1.00 | 0.04 | 0.03 | 1.00 | 17.0-19.0 | 0.5 | _ | 0.03 | ≥Ti[0.20+4(C+N)]，≤1.10；鋁 0.15 |
431 | 0.2 | 1.00 | 0.04 | 0.03 | 1.00 | 15.0-17.0 | 1.25-2.50 | _ | _ | _ |
434 | 0.12 | 1.00 | 0.04 | 0.03 | 1.00 | 16.0-18.0 | _ | 0.75-1.25 | _ | |
436 | 0.12 | 1.00 | 0.04 | 0.03 | 1.00 | 16.0-18.0 | _ | 0.75-1.25 | _ | ≥ Cb 5×C，≤ 0.80 |
440A | 0.60-0.75 | 1.00 | 0.04 | 0.03 | 1.00 | 16.0-18.0 | _ | ≤0.75 | _ | _ |
440B | 0.75-0.95 | 1.00 | 0.04 | 0.03 | 1.00 | 16.0-18.0 | _ | ≤0.75 | _ | _ |
440C | 0.95-1.20 | 1.00 | 0.04 | 0.03 | 1.00 | 16.0-18.0 | _ | ≤0.75 | _ | _ |
440F | 0.95-1.20 | 1.25 | 0.06 | 0.15 | 1.00 | 16.0-18.0 | 0.5 | _ | _ | 銅≤0.60 |
440FSe | 0.95-1.20 | 1.25 | 0.06 | 0.06 | 1.00 | 16.0-18.0 | 0.5 | _ | _ | 硒≤0.15；銅≤0.60 |
442 | 0.2 | 1.00 | 0.04 | 0.04 | 1.00 | 18.0-23.0 | 0.6 | _ | _ | |
444 | 0.025 | 1.00 | 0.04 | 0.03 | 1.00 | 17.5-19.5 | 1.00 | 1.75-2.50 | 0.035 | Ti+Cb 0.20+4 × (C+N)-0.80 |
446 | 0.2 | 1.5 | 0.04 | 0.03 | 1.00 | 23.0-27.0 | 0.75 | _ | 0.25 | _ |
800 | 0.1 | 1.5 | 0.045 | 0.015 | 1.00 | 19.0-23.0 | 30.0-35.0 | _ | _ | 銅 0.75；≥FeH 39.5；鋁 0.15-0.60 |
800小時 | 0.05-0.10 | 1.5 | 0.045 | 0.015 | 1.00 | 19.0-23.0 | 30.0-35.0 | _ | _ | 銅 0.75；≥FeH 39.5；鋁 0.15-0.60 |
904L | 0.02 | 2.00 | 0.045 | 0.035 | 1.00 | 19.0-23.0 | 23.0-28.0 | 4.00-5.00 | 0.1 | 銅 1.00-2.00 |
合金 20 | 0.07 | 2.00 | 0.045 | 0.035 | 1.00 | 19.0-21.0 | 32.0-38.0 | 2.00-3.00 | _ | 銅 3.0-4.0；≥ Nb 8 × C；≤1.00 |
XM-1 | 0.08 | 5.0-6.5 | 0.04 | 0.18-0.35 | 1.00 | 16.00-18.0 | 5.0-6.5 | _ | _ | 銅 1.75-2.25 |
XM-2 | 0.15 | 2.00 | 0.05 | 0.11-0.16 | 1.00 | 17.0-19.0 | 8.0-10.0 | 0.40-0.60 | _ | 鋁 0.60-1.00 |
XM-5 | 0.15 | 2.5-4.5 | 0.2 | ≥0.25 | 1.00 | 17.0-19.0 | 7.0-10.0 | _ | _ | _ |
XM-6 | 0.15 | 1.50-2.50 | 0.06 | ≥0.15 | 1.00 | 12.0-14.0 | _ | _ | _ | _ |
XM-10 | 0.08 | 8.0-10.0 | 0.045 | 0.03 | 1.00 | 19.0-21.5 | 5.5-7.5 | _ | 0.15-0.40 | _ |
XM-11 | 0.04 | 8.0-10.0 | 0.045 | 0.03 | 1.00 | 19.0-21.5 | 5.5-7.5 | _ | 0.15-0.40 | _ |
XM-15 | 0.08 | 2.00 | 0.03 | 0.03 | 1.50-2.50 | 17.0-19.0 | 17.5-18.5 | _ | _ | _ |
XM-17 | 0.08 | 7.50-9.00 | 0.045 | 0.03 | 0.75 | 17.5-22.0 | 5.0-7.0 | 2.00-3.00 | 0.25-0.50 | _ |
XM-18 | 0.03 | 7.50-9.00 | 0.045 | 0.03 | 0.75 | 17.5-22.0 | 5.0-7.0 | 2.00-3.00 | 0.25-0.50 | _ |
XM-19 | 0.06 | 4.0-6.0 | 0.045 | 0.03 | 1.00 | 20.5-23.5 | 11.5-13.5 | 1.50-3.00 | 0.20-0.40 | Cb 0.10-0.30，V 0.10-0.30 |
XM-21 | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 18.0-20.0 | 8.0-10.5 | _ | 0.16-0.30 | _ |
XM-27 | 0.01 | 0.4 | 0.02 | 0.02 | 0.4 | 25.0-27.5 | 0.5 | 0.75-1.50 | 0.015 | 銅 0.20；Cb 0.05-0.20；(Ni+Cu) 0.50 |
XM-33 | 0.06 | 0.75 | 0.04 | 0.02 | 0.75 | 25.0-27.0 | 0.5 | 0.75-1.50 | 0.04 | 銅 0.20；Ti 0.20-1.00；≥ Ti 7(C+N) |
XM-34 | 0.08 | 2.5 | 0.04 | ≥0.15 | 1.00 | 17.5-19.5 | _ | 1.50-2.50 | _ | _ |
PH 13-8Mo | 0.05 | 0.2 | 0.01 | 0.008 | 0.1 | 12.25-13.25 | 7.5-8.5 | _ | _ | _ |
15-5 PH | 0.07 | 1 | 0.04 | 0.03 | 1 | 14.0-15.5 | 3.5-5.5 | _ | _ | 2.5-4.5 銅；0.15-0.45 鈮 |
17-4 PH | 0.07 | 1 | 0.04 | 0.03 | 1 | 15.5-17.5 | 3.0-5.0 | _ | _ | 3.0-5.0 銅；0.15-0.45 鈮 |
17-7 PH | 0.09 | 1 | 0.04 | 0.04 | 1 | 16.0-18.0 | 6.5-7.75 | _ | _ | 0.75-1.5鋁 |
