GB/T20878-2007不锈钢的牌号与化学成分标准
中华人民共和国国家标准
GB/T 20878-2007(代替GB/T4229-1984)
不锈钢、耐热钢牌号——化学成分
1范围
本标准规定了不锈钢、耐热钢标准牌号及其化学成分(见表1〜表5),并以附录的形式列入了一些 牌号的物理参数、特性和用途及与国外标准牌号对照表等。
本标准规定的牌号及化学成分极限值适用于制定压延不锈钢、耐热钢(包括钢锭和半成品)产品标准时采用。
2术语及定义
本标准采用下列术语及定义。
2.1
不锈钢 stainless steel,以不锈、耐蚀性为主要特性,且铬含量至少为10.5%,碳含量最大不超过1.2%的钢。
2.1.1
奥氏体类不锈钢 austenitic grade stainless steel
基体以面心立方晶体结构的奥氏体组织(Y相)为主,无磁性,主要通过冷加工使其强化的不锈钢。
2.1.2
奥氏体-铁素体(双相)类不锈钢 austenitic-ferritic(duplex) grade stainl ess steel
基体兼有奥氏体和铁素体两相组织(其中较少相的含量一般大于15%),可通过冷加工使其强化的 不锈钢。
2.1.3
铁素体类不锈钢ferriticgrade stainless steel
基体以体心立方晶体结构的铁素体组织(a相)为主,有磁性,一般不能通过热处理硬化,但冷 加工可使其轻微强化的不锈钢。
2.1.4
马氏体类不锈钢 martensitic grade stainless steel
基体为马氏体组织,有磁性,通过热处理可调整其力学性能的钢。
2.1.5
沉淀硬化类不锈钢 precipitation hardening grade stainless steel
基体为奥氏体或马氏体组织,并能通过沉淀硬化处理(又称时效硬化)使其硬(强)化的不锈钢。
2.2
耐热钢 heat-resisting steel
在高温下具有良好的化学稳定性或较高强度的钢。
3确定化学成分极限值的一般准则
3.1碳
在碳含量不小于0.03%时,推荐取两位小数;在碳含量不大于0.030%时,推荐取三位小数。
3.2锰
除Cr-Ni-Mn牌号外,对奥氏体钢和其它牌号分别推荐用2%和1% (最大值),但不包括含高硫或硒 的易切削钢或需提高氮固溶度的牌号。
3.3 磷
除非由于技术原因有关生产厂推荐用较低的极限值外,奥氏体类不锈钢推荐用≤0.045%,其它牌号用≤ 0.040%。
3.4硫
除非由于特殊技术原因已规定较低的极限值外,所有牌号推荐用≤0.030%,但不包括易切削钢牌号。
3.5硅
扁平材和管材推荐用≤0.75%,长条材和锻件推荐用≤1.00%,对于同时生产长条和扁平产品的牌号 推荐选用1.00%。选用较低极限值还是较高极限值由具体产品的特殊要求确定。
3.6铬
成分上下限范围推荐为2%,原有较宽成分范围不能压缩小于3%。(八composition spread of 2% is recommended;existing broader limits were not reduced to less than a 3% spread)
3.7镍
除非由于特殊技术要求较宽的成分范围(一般含量较高),成分上下限范围推荐不超过3%。
3.8钼
除非由于特殊技术要求较宽的成分范围,成分上下限范围推荐不超过1%。除特殊技术要求外,钼含量一般应规定上、下限。
3.9氮
除特殊技术要求外,氮含量一般应规定上、下限。
3.10 铜
除特殊技术要求外,铜含量一般应规定上、下限。
3.11铌和钽
除非有特殊用途要求标明钽,同时列入两个元素(即铌+钽)时,推荐只列入铌元素。
注:Cb(columbium)和Nb(niobinm)表示的是同一种元素,我国标准一般用Nb(niobinm)。
4不锈钢标准牌号的化学成分与应用
4.1不锈钢标准牌号按冶金学分类分表,即奥氏体类、奥氏体–铁素体类、铁素体类、马氏体类和沉淀 硬化类等。
表1为奥氏体类不锈钢标准牌号及其化学成分;
表2为奥氏体–铁素体类不锈钢标准牌号及其化学成分;
表3为铁素体类不锈钢标准牌号及其化学成分;
表4为马氏体类不锈钢标准牌号及其化学成分;
表5为沉淀硬化类不锈钢标准牌号及其化学成分。
4.2本标准中的化学成分在被产品标准采用之前,不作为对任何产品的化学成分的要求。
4.3如果可能,一种牌号在各不锈钢产品标准之间化学成分最好统一。本标准规定的化学成分极限值是 用于测定每个牌号总成分中每个元素成分极限值的一种导则。第3章列入了确定每个元素成分极限值的 一般准则,本标准中规定的化学成分极限值是依据这些准则确定的。
4.4由于特殊的技术影响,各产品标准要求会有小的变化。允许在产品标准或合同、协议中适当调整化 学成分范围,或对残余元素、有害杂质含量作特殊限制规定。
表1:奥氏体类不锈钢的标准牌号及其化学成分
序号 |
新牌号 |
旧牌号 |
化学成分(质量分数),% |
||||||||||
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
Cu |
N |
其它元素 |
|||
1 |
15Cr17Mn6Ni5N |
1Cr17Mn6Ni5N |
0.150 |
1.00 |
5.50-7.50 |
0.045 |
0.030 |
3.50-5.50 |
16.00-18. 00 |
– |
– |
0.05-0.25 |
– |
2 |
15Cr18Mn8Ni5N |
1Cr18Mn8Ni5N |
0.150 |
1.00 |
7.50-10.50 |
0.045 |
0.030 |
4.00-6.00 |
17.00-19. 00 |
– |
– |
0.05-0.25 |
– |
3 |
20Cr13Mn9Ni4 |
2Cr13Mn9Ni4 |
0.15-0.30 |
0.80 |
8.00-10.00 |
0.045 |
0.025 |
3.70-5.00 |
12.00-14. 00 |
– |
– |
– |
– |
4 |
20Cr15Mn15Ni2N |
2Cr15Mn15Ni2N |
0.15-0.25 |
1.00 |
14.00-16. 00 |
0.045 |
0.030 |
1.50-3.00 |
14.00-16. 00 |
– |
– |
0.15-0.30 |
– |
5 |
53Cr21Mn9Ni4N(a) |
5Cr21Mn9Ni4N(a) |
0.48-0.58 |
0.35 |
8.00-10.00 |
0.040 |
0.030 |
3.25-4.50 |
20.00-22. 00 |
– |
– |
0.35-0.50 |
– |
6 |
26Cr18Mn12Si2N(a) |
3Cr18Mn12Si2N(a) |
0.22-0.30 |
1.40-2.20 |
10.50-12. 50 |
0.045 |
0.030 |
– |
17.00-19. 00 |
– |
– |
0.22-0.33 |
– |
7 |
22Cr20Mn9Ni2Si2N(a) |
2Cr20Mn9Ni2Si2N(a) |
0.17-0.26 |
1.80-2.70 |
8.50-11.00 |
0.045 |
0.030 |
2.00-3.00 |
18.00-21. 00 |
– |
|
0.20-0.30 |
– |
8 |
15Cr17Ni7 |
1Cr17Ni7 |
0.150 |
1.00 |
2.00 |
0.045 |
0.030 |
6.00-8.00 |
16.00-18. 00 |
– |
– |
0.10 |
– |
9 |
03Cr17Ni7 |
|
0. 030 |
1.00 |
2. 00 |
0. 045 |
0. 030 |
6. 00-8. 00 |
16. 00-18. 00 |
– |
– |
0. 20 |
– |
10 |
03Cr17Ni7N |
|
0. 030 |
1.00 |
2. 00 |
0. 045 |
0. 030 |
6. 00-8. 00 |
16. 00-18. 00 |
– |
– |
0. 07-0. 20 |
– |
11 |
17Cr18Ni9 |
2Cr18Ni9 |
0.13-0.21 |
1.00 |
2.00 |
0.045 |
0.025 |
8.00-10.50 |
17.00-19. 00 |
– |
– |
– |
– |
12 |
15Cr18Ni9 |
1Cr18Ni9 |
0.150 |
1.00 |
2.00 |
0.045 |
0.030 |
8.00-10.00 |
17.00-19. 00 |
– |
– |
0.10 |
– |
13 |
15Cr18Ni9Si3(a) |
1Cr18Ni9Si3(a) |
0.150 |
2.00-3.00 |
2.00 |
0.045 |
0.030 |
8.00-10.00 |
17.00-19. 00 |
– |
– |
0.10 |
– |
14 |
Y15Cr18Ni9 |
Y1Cr18Ni9 |
0.150 |
1.00 |
2.00 |
0.020 |
30.150 |
8.00-10.00 |
17.00-19. 00 |
(c) |
– |
– |
– |
15 |
Y15Cr18Ni9Se |
Y1Cr18Ni9Se |
0.150 |
1.00 |
2.00 |
0.020 |
0.060 |
8.00-10.00 |
17.00-19. 00 |
– |
– |
– |
Se≥0.15 |
16 |
08Cr19Ni9(a) |
0Cr18Ni9(a) |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
8.00-11.00 |
18.00-20. 00 |
– |
– |
– |
– |
17 |
03Cr19Ni10 |
00Cr19Ni10 |
0.030 |
1.00 |
2.00 |
0.045 |
0.030 |
8.00-12.00 |
18.00-20. 00 |
– |
– |
– |
– |
18 |
07Cr19Ni9 |
|
0.04-0.10 |
1.00 |
2.00 |
0.045 |
0.030 |
8.00-10.50 |
18.00-20. 00 |
– |
– |
– |
– |
19 |
05Cr19Ni10Si2NbN |
|
0.04-0.06 |
1.00-2.00 |
0.80 |
0.045 |
0.030 |
9.00-10.00 |
18.00-19. 00 |
– |
– |
0.12-0.18 |
Nb 0. 03-0.08 |
20 |
08Cr18Ni9Cu2 |
0Cr18Ni9Cu2 |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
8.00-10.50 |
17.00-19. 00 |
– |
1.00- 3.00 |
– |
– |
21 |
08Cr18Ni9Cu4 |
0Cr18Ni9Cu3 |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
8.50-10.50 |
17.00-19. 00 |
– |
3.00- 4.00 |
– |
– |
22 |
08Cr19Ni9N |
0Cr19Ni9N |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
8.00-11.00 |
18.00-20. 00 |
– |
– |
0.10-0.16 |
– |
23 |
08Cr19Ni9NbN |
0Cr19Ni10NbN |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
7.50-10.50 |
18.00-20. 00 |
– |
– |
0.15-0.30 |
Nb≥0.15 |
24 |
03Cr19Ni10N |
00Cr18Ni10N |
0.030 |
1.00 |
2.00 |
0.045 |
0.030 |
8.00-12.00 |
18.00-20. 00 |
– |
– |
0.10-0.16 |
– |
25 |
12Cr18Ni12 |
1Cr18Ni12 |
0.120 |
1.00 |
2.00 |
0.045 |
0.030 |
10.50-13. 00 |
17.00-19. 00 |
– |
– |
– |
– |
26 |
08Cr18Ni12 |
0Cr18Ni12 |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
11.00-13. 50 |
16.50-19. 00 |
– |
– |
– |
– |
27 |
08Cr16Ni18 |
0Cr16Ni18 |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
17.00-19. 00 |
15.00-17. 00 |
– |
– |
– |
– |
28 |
08Cr20Ni11 |
|
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
10.00-12. 00 |
19.00-21. 00 |
– |
– |
– |
– |
29 |
22Cr21Ni12N(a) |
2Cr21Ni12N(a) |
0.15-0.28 |
0.75-1.25 |
1.00-1.60 |
0.035 |
0.030 |
10.50-12. 50 |
20.00-22. 00 |
– |
– |
0.15-0.30 |
– |
30 |
20Cr23Ni13(a) |
2Cr23Ni13(a) |
0.200 |
1.00 |
2.00 |
0.035 |
0.030 |
12.00-15. 00 |
22.00-24. 00 |
– |
– |
– |
– |
31 |
08Cr23Ni13(a) |
0Cr23Ni13(a) |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
12.00-15. 00 |
22.00-24. 00 |
– |
– |
– |
– |
32 |
18Cr23Ni18 |
1Cr23Ni18 |
0.180 |
1.00 |
2.00 |
0.035 |
0.025 |
17.00-20. 00 |
22.00-25. 00 |
– |
– |
– |
|
33 |
25Cr25Ni20(a) |
2Cr25Ni20(a) |
0.250 |
1.50 |
2.00 |
0.045 |
0.030 |
19.00-22. 00 |
24.00-26. 00 |
– |
– |
– |
– |
34 |
08Cr25Ni20(a) |
0Cr25Ni20(a) |
0.080 |
1.50 |
2.00 |
0.045 |
0.030 |
19.00-22. 00 |
24.00-26. 00 |
– |
– |
– |
– |
35 |
03Cr25Ni22Mo3N |
|
0.030 |
0.40 |
2.00 |
0.030 |
0.015 |
21.00-23. 00 |
24.00-26. 00 |
2.00-3.00 |
– |
0.10-0.16 |
– |
36 |
02Cr20Ni18Mo6CuN |
|
0.020 |
0.80 |
1.00 |
0.030 |
0.010 |
19.50-20. 50 |
17.50-18. 50 |
6.00-6.50 |
0.50-1.00 |
0.18-0.22 |
– |
37 |
15Cr16Ni35(a) |
1Cr16Ni35(a) |
0.150 |
1.50 |
2.00 |
0.040 |
0.030 |
33.00-37. 00 |
14.00-17. 00 |
– |
– |
– |
– |
38 |
08Cr17Ni12Mo2(a) |
0Cr17Ni12Mo2(a) |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
10.00-14. 00 |
16.00-18. 00 |
2.00-3.00 |
– |
– |
– |
39 |
03Cr17Ni12Mo2 |
00Cr17Ni14Mo2 |
0.030 |
1.00 |
2.00 |
0.045 |
0.030 |
10.00-14. 00 |
16.00-18. 00 |
2.00-3.00 |
– |
– |
– |
40 |
07Cr17Ni12Mo2(a) |
1Cr17Ni12Mo2(a) |
0.04-0.10 |
1.00 |
2.00 |
0.045 |
0.030 |
10.00-14. 00 |
16.00-18. 00 |
2.00-3.00 |
– |
– |
– |
41 |
08Cr17Ni12Mo2Ti(a) |
0Cr18Ni12Mo2Ti(a) |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
10.00-14. 00 |
16.00-18. 00 |
2.00-3.00 |
– |
– |
Ti≥5C |
42 |
08Cr17Ni12Mo2Nb |
|
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
10.00-14. 00 |
16.00-18. 00 |
2.00-3.00 |
– |
0.10 |
Nb 10C〜1.10 |
43 |
08Cr17Ni12Mo2N |
0Cr17Ni12Mo2N |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
10.50-13. 00 |
16.00-18. 00 |
2.00-3.00 |
– |
0.10-0.16 |
– |
44 |
03Cr17Ni12Mo2N |
00Cr17Ni13Mo2N |
0.030 |
1.00 |
2.00 |
0.045 |
0.030 |
10.00-13. 00 |
16.00-18. 00 |
2.00-3.00 |
– |
0.10-0.16 |
– |
45 |
08Cr18Ni12Mo2Cu2 |
0Cr18Ni12Mo2Cu2 |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
10.00-14. 50 |
17.00-19. 00 |
1.20-2.75 |
1.00-2.50 |
– |
– |
46 |
03Cr18Ni14Mo2Cu2 |
00Cr18Ni14Mo2Cu2 |
0.030 |
1.00 |
2.00 |
0.045 |
0.030 |
12.00-16. 00 |
17.00-19. 00 |
1.20-2.75 |
1.00-2.50 |
– |
– |
47 |
08Cr19Ni13Mo4 |
0Cr19Ni13Mo3 |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
11.00-15. 00 |
18.00-20. 00 |
3.00-4.00 |
– |
– |
– |
48 |
03Cr19Ni13Mo4(a) |
00Cr19Ni13Mo3(a) |
0.030 |
1.00 |
2.00 |
0.045 |
0.030 |
11.00-15. 00 |
18.00-20. 00 |
3.00-4.00 |
– |
– |
– |
49 |
04Cr18Ni16Mo5 |
0Cr18Ni16Mo5 |
0.040 |
1.00 |
2.50 |
0.045 |
0.030 |
15.00-17. 00 |
16.00-19. 00 |
4.00-6.00 |
– |
– |
– |
50 |
03Cr19Ni16Mo5N |
|
0.030 |
1.00 |
2.00 |
0.045 |
0.030 |
13.50-17. 50 |
17.00-20. 00 |
4.00-5.00 |
– |
0.10-0.20 |
– |
51 |
03Cr19Ni13Mo4N |
|
0.030 |
1.00 |
2.00 |
0.045 |
0.030 |
11.00-15. 00 |
18.00-20. 00 |
3.00-4.00 |
– |
0.10-0.22 |
– |
52 |
03Cr18Ni14Mo3 |
00Cr18Ni14Mo2 |
0.030 |
1.00 |
2.00 |
0.025 |
0.010 |
13.00-15. 00 |
17.00-19. 00 |
2.50-3.50 |
0.50 |
0.10 |
– |
53 |
03Cr18Ni15Mo4N |
00Cr18Ni15Mo4N |
0.030 |
1.00 |
2.00 |
0.025 |
0.010 |
14.00-16. 00 |
17.00-19. 00 |
2.35-4.20 |
0.50 |
0.10-0.20 |
– |
54 |
08Cr18Ni10Ti(a) |
0Cr18Ni10Ti(a) |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
9.00-12.00 |
17.00-19. 00 |
– |
– |
– |
Ti 5C〜0.70 |
55 |
07Cr18Ni11Ti |
1Cr18Ni11Ti |
0.04-0.10 |
0.75 |
2.00 |
0.030 |
0.030 |
9.00-13.00 |
17.00-20. 00 |
– |
– |
– |
Ti 4C〜0.60 |
56 |
02Cr25Ni22Mo8Mn3CuN |
|
0.020 |
0.50 |
2.00-4.00 |
0.030 |
0.005 |
21.00-23. 00 |
24.00-25. 00 |
7.00-8.00 |
0.30-0.60 |
0.45-0.55 |
– |
57 |
03Cr24Ni17Mo5Mn6NbN |
|
0.030 |
1.00 |
5.00-7.00 |
0.030 |
0.010 |
16.00-18. 00 |
23.00-25. 00 |
4.00-5.00 |
– |
0.40-0.60 |
N≤0.10 |
58 |
08Cr18Ni11Nb(a) |
0Cr18Ni11Nb(a) |
0.080 |
1.00 |
2.00 |
0.045 |
0.030 |
9.00-12.00 |
17.00-19. 00 |
– |
– |
– |
Nb 10C〜1.10 |
59 |
07Cr18Ni11Nb(a) |
1Cr19Ni11Nb(a) |
0.04-0.10 |
1.00 |
2.00 |
0.045 |
0.030 |
9.00-12.00 |
17.00-19. 00 |
– |
– |
– |
Nb 8C〜1.10 |
60 |
45Cr14Ni14W2Mo(a) |
4Cr14Ni14W2Mo(a) |
0.40-0.50 |
0.80 |
0.70 |
0.035 |
0.030 |
13.00-15. 00 |
13.00-15. 00 |
0.25-0.40 |
– |
– |
W 2.00〜2.75 |
61 |
25Cr18Ni8W2(a) |
2Cr18Ni8W2(a) |
0.21-0.28 |
0.30-0.80 |
0.70 |
0.030 |
0.025 |
7.50-8.50 |
17.00-19. 00 |
– |
– |
– |
W 2.00〜2.50 |
62 |
08Cr18Ni13Si4(a) |
0Cr18Ni13Si4(a) |
0.080 |
3.00-5.00 |
2.00 |
0.045 |
0.030 |
11.50-15. 00 |
15.00-20. 00 |
– |
– |
– |
(b) |
63 |
02Cr18Ni15Si4Nb |
|
0.020 |
3.70-4.50 |
2.00 |
0.020 |
0.020 |
14.00-15. 50 |
17.00-18. 50 |
– |
– |
– |
Nb(d)0.40〜0.80 |
64 |
02Cr21Ni26Mo5Cu2 |
|
0.020 |
1.00 |
2.00 |
0.045 |
0.030 |
23.00-28. 00 |
19.00-23. 00 |
4.00-5.00 |
1.00-2.00 |
0.10 |
– |
65 |
20Cr20Ni14Si2(a) |
1Cr20Ni14Si2(a) |
0.200 |
1.50-2.50 |
1.50 |
0.035 |
0.030 |
12.00-15. 00 |
19.00-22. 00 |
– |
– |
– |
– |
66 |
20Cr25Ni20Si2(a) |
1Cr25Ni20Si2(a) |
0.200 |
1.50-2.50 |
1.50 |
0.035 |
0.030 |
18.00-21. 00 |
24.00-27. 00 |
– |
– |
– |
– |
注1:表中所列成分除标明范围或最小值,其余均为最大值。
注2:钛、铌和锆可提高钢的稳定性。根据这些元素的原子数以及碳含量和氮含量,有下列等效性:Ti≌7/4Nb≌7/4Zr。
a 耐热钢或可作耐热钢使用。
b 必要时,可添加上表以外的合金元素;
c 可加入小于或等于0.60%Mo;
d 当钢中加入0.40%-0.80%Nb时,碳含量允许放宽到不大于0.03%
序号 |
新牌号 |
旧牌号 |
化学成分(质量分数),% |
|
||||||||||
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
Cu |
N |
其它元素 |
||||
67 |
14Cr18Ni11Si4AlTi |
1Cr18Ni11Si4AlTi |
0.10-0.18 |
3.40-4.00 |
0.80 |
0.035 |
0.030 |
10.00-12. 00 |
17.50-19. 50 |
– |
– |
– |
Ti 0.40〜0.70 |
|
68 |
03Cr19Ni5Mo3Si2N |
00Cr18Ni5Mo3Si2 |
0.030 |
1.30-2.00 |
1.00-2.00 |
0.035 |
0.030 |
4.50-5.50 |
18.00-19. 50 |
2.50-3.00 |
– |
0.05-0.12 |
– |
|
69 |
12Cr21Ni5Ti |
1Cr21Ni5Ti |
0.09-0.14 |
0.08 |
0.80 |
0.035 |
0.030 |
4.80-5.80 |
20.00-22. 00 |
– |
– |
– |
Ti 5(C—0.02)〜0.80 |
|
70 |
03Cr22Ni5Mo3N |
|
0.030 |
1.00 |
2.00 |
0.030 |
0.020 |
4.50-6.50 |
21.00-23. 00 |
2.50-3.50 |
– |
0.08-0.20 |
– |
|
71 |
03Cr23Ni4N |
|
0.030 |
1.00 |
2.50 |
0.035 |
0.030 |
3.00-5.50 |
21.50-24. 50 |
0.05-0.60 |
0.05-0.60 |
0.05-0.20 |
– |
|
72 |
03Cr25Ni5Mo2N |
|
0.030 |
1.00 |
2.00 |
0.030 |
0.030 |
5.50-6.50 |
24.00-26. 00 |
1.20-2.50 |
– |
0.10-0.20 |
– |
|
73 |
03Cr25Ni7Mo3WCuN |
|
0.030 |
1.00 |
0.75 |
0.030 |
0.030 |
5.50-7.50 |
24.00-26. 00 |
2.50-3.50 |
0.20-0.80 |
0.20-0.30 |
W 0.10〜0.50 |
|
74 |
04Cr25Ni6Mo3Cu2N |
|
0.040 |
1.00 |
1.50 |
0.035 |
0.030 |
4.50-6.50 |
24.00-27. 00 |
2.90-3.90 |
1.50-2.50 |
0.10-0.25 |
– |
|
75 |
03Cr25Ni7Mo4N |
|
0.030 |
0.80 |
1.20 |
0.035 |
0.020 |
6.00-8.00 |
24.00-26. 00 |
3.00-5.00 |
0.50 |
0.24-0.32 |
– |
|
76 |
03Cr25Ni7Mo4WCuN |
|
0.030 |
1.00 |
1.00 |
0.030 |
0.010 |
6.00-8.00 |
24.00-26. 00 |
3.00-4.00 |
0.50-1.00 |
0.20-0.30 |
W 0.50〜1.00 |
表 2 奥氏体-铁素体类不锈钢的标准牌号及其化学成分
注:表中所列成分除标明范围或最小值,其余均为最大值
序号 |
新牌号 |
旧牌号 |
化学成分(质量分数),% |
|
||||||||||
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
Cu |
N |
其它元素 |
||||
77 |
08Cr13Al(a) |
0Cr13Al(a) |
0.08 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
11.50-14. 50 |
– |
– |
– |
Al 0.10 〜0.30 |
|
78 |
08Cr13 |
0Cr13 |
0.08 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
11.50-13. 50 |
– |
– |
– |
– |
|
79 |
08Cr11Ti |
0Cr11Ti |
0.08 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
10.50-11. 75 |
– |
– |
– |
Ti 6C 〜0.75 |
|
80 |
03Cr11Ti |
|
0.03 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
10.50-11. 75 |
– |
– |
– |
Ti 6C 〜0.75 |
|
81 |
03Cr11NbTi |
|
0.03 |
1.00 |
1.00 |
0.040 |
0.020 |
(b) |
10.50-11. 70 |
– |
– |
0.030 |
Ti+Nb:8(C+N)+0.08~0.75 |
|
82 |
03Cr12(a) |
00Cr12(a) |
0.03 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
11.00-13. 50 |
– |
– |
– |
– |
|
83 |
03Cr12Ni |
|
0.03 |
1.00 |
1.50 |
0.040 |
0.015 |
0.30-1.00 |
10.50-12. 50 |
– |
– |
0.030 |
– |
|
84 |
12Cr15 |
1Cr15 |
0.12 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
14.00-16. 00 |
– |
– |
– |
– |
|
85 |
12Cr17(a) |
1Cr17(a) |
0.12 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
16.00-18. 00 |
– |
– |
– |
– |
|
86 |
Y12Cr17 |
Y1Cr17 |
0.12 |
1.00 |
1.25 |
0.040 |
≥0.15 |
(b) |
16.00-18. 00 |
(c) |
– |
– |
– |
|
87 |
03Cr18Ti |
00Cr17 |
0.03 |
0.75 |
1.00 |
0.040 |
0.030 |
(b) |
16.00-19. 00 |
– |
– |
– |
Ti或Nb: 0.10〜1.00 |
|
88 |
12Cr17Mo |
1Cr17Mo |
0.12 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
16.00-18. 00 |
0.75-1.25 |
– |
– |
– |
|
89 |
12Cr17MoNb |
|
0.12 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
16.00-18. 00 |
0.75-1.25 |
– |
– |
Nb 5C〜0.80 |
|
90 |
03Cr18MoTi |
|
0.03 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
16.00-19. 00 |
0.75-1.50 |
– |
0.025 |
Ti,Nb,Zr 或其组合: |
|
91 |
03Cr18NbTi |
|
0.03 |
1.00 |
1.00 |
0.040 |
0.015 |
(b) |
17.50-18. 50 |
– |
– |
– |
Ti 0.10~0.60 |
|
92 |
03Cr18Mo2NbTi |
00Cr18Mo2 |
0.03 |
1.00 |
1.00 |
0.040 |
0.030 |
1.00 |
17.50-19. 50 |
1.75-2.50 |
– |
0.035 |
(Ti+Nb):[0.20+4(C+N)] ~0.80 |
|
93 |
01Cr27Mo |
00Cr27Mo |
0.01 |
0.40 |
0.40 |
0.030 |
0.020 |
(d) |
25.00-27. 50 |
0.75-1.50 |
0.20 |
0.015 |
(d) |
|
94 |
01Cr30Mo2 |
00Cr30Mo2 |
0.01 |
0.40 |
0.40 |
0.030 |
0.020 |
(d) |
28.50-32. 00 |
1.50-2.50 |
0.20 |
0.015 |
(d) |
表 3 铁素体类不锈钢的标准牌号及其化学成分
注 1:表中所列成分除标明范围或最小值,其余均为最大值。
注 2:钛、铌和锆可提高钢的稳定性。根据这些元素的原子数以及碳含量和氮含量,有下列等效性:Ti≌7/4Nb≌7/4Zr。
a 耐热钢或可作耐热钢使用。
b 允许含有小于或等于 0.60%Ni;
c 可以加入小于或等于 0.60%Mo;
d 允许含有小于或等于 0.50%Ni,小于或等于 0.20%Cu,但 Ni+Cu 的含量应小于或等于 0.50%;根据需要,可添加上表以外的合金元素.
序号 |
新牌号 |
旧牌号 |
化学成份(质量分数),% |
||||||||||
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
Cu |
N |
其它元素 |
|||
95 |
15Cr12 |
1Cr12 |
0.15 |
0.50 |
1.00 |
0.040 |
0.030 |
(b) |
11.50-13. 00 |
– |
– |
– |
– |
96 |
15Cr13 |
1Cr13 |
0.15 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
11.50-13. 50 |
– |
– |
– |
– |
97 |
05Cr13Ni5Mo |
|
0.05 |
0.60 |
0.50-1.00 |
0.030 |
0.030 |
3.50-5.50 |
11.50-14. 00 |
0.50-1.00 |
– |
– |
– |
98 |
Y15Cr13 |
Y1Cr13 |
0.15 |
1.00 |
1.25 |
0.045 |
≥0.15 |
(b) |
12.00-14. 00 |
(c) |
– |
|
– |
99 |
21Cr13(a) |
2Cr13(a) |
0.16-0.25 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
12.00-14. 00 |
– |
– |
– |
– |
100 |
Y25Cr13Ni2 |
Y2Cr13Ni2 |
0.20-0.30 |
0.50 |
0.80-1.20 |
0.08-0.12 |
0.15-0.25 |
1. 50-2.00 |
12.00-14. 00 |
(c) |
– |
– |
– |
101 |
31Cr13 |
3Cr13 |
0.26-0.35 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
12.00-14. 00 |
– |
– |
– |
– |
102 |
Y31Cr13 |
Y3Cr13 |
0.26-0.35 |
1.00 |
1.25 |
0.045 |
≥0.15 |
(b) |
12.00-14. 00 |
(c) |
– |
– |
– |
103 |
41Cr13 |
4Cr13 |
0.36-0.45 |
0.60 |
0.80 |
0.040 |
0.030 |
(b) |
12.00-14. 00 |
– |
– |
– |
– |
104 |
14Cr17Ni2(a) |
1Cr17Ni2(a) |
0.11-0.17 |
0.80 |
0.80 |
0.040 |
0.030 |
1.50-2.50 |
16.00-18. 00 |
– |
– |
– |
– |
105 |
16Cr17Ni3(a) |
|
0.12-0.20 |
0.80 |
1.00 |
0.040 |
0.030 |
2.00-3.00 |
15.00-18. 00 |
– |
– |
– |
– |
106 |
68Cr17 |
7Cr17 |
0.60-0.75 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
16.00-18. 00 |
(d) |
– |
– |
– |
107 |
85Cr17 |
8Cr17 |
0.75-0.95 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
16.00-18. 00 |
(d) |
– |
– |
– |
108 |
108Cr17 |
11Cr17 |
0.95-1.20 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
16.00-18. 00 |
(d) |
– |
– |
– |
109 |
Y108Cr17 |
Y11Cr17 |
0.95-1.20 |
1.00 |
1.25 |
0.045 |
≥0.15 |
(b) |
16.00-18. 00 |
(d) |
– |
– |
– |
110 |
95Cr18 |
9Cr18 |
0.90-1.00 |
0.80 |
0.80 |
0.040 |
0.030 |
(b) |
17.00-19. 00 |
(d) |
– |
– |
– |
111 |
108Cr17Mo |
9Cr18Mo |
0.95-1.10 |
0.80 |
0.80 |
0.040 |
0.030 |
(b) |
16.00-18. 00 |
0.40-0.70 |
– |
– |
– |
112 |
90Cr18MoV |
9Cr18MoV |
0.85-0.95 |
0.80 |
0.80 |
0.040 |
0.030 |
(b) |
17.00-19. 00 |
1.00-1.30 |
– |
– |
V 0.07〜0.12 |
113 |
10Cr5Mo(a) |
1Cr5Mo(a) |
0.10 |
1.00 |
1.00 |
0.040 |
0.030 |
(b) |
4.00-6.00 |
0.45-0.65 |
– |
– |
– |
114 |
12Cr12Mo(a) |
1Cr12Mo(a) |
0.10-0.15 |
0.50 |
0.30-0.50 |
0.040 |
0.030 |
0.30-0.60 |
11.50-13. 00 |
0.30-0.60 |
0.30 |
– |
– |
115 |
13Cr13Mo(a) |
1Cr13Mo(a) |
0.08-0.18 |
0.60 |
1.00 |
0.040 |
0.030 |
(b) |
11.50-14. 00 |
0.30-0.60 |
– |
– |
– |
116 |
32Cr13Mo |
3Cr13Mo |
0.28-0.35 |
0.80 |
1.00 |
0.040 |
0.030 |
(b) |
12.00-14. 00 |
0.50-1.00 |
– |
– |
– |
117 |
15Cr11MoV(a) |
1Cr11MoV(a) |
0.11-0.18 |
0.50 |
0.60 |
0.040 |
0.030 |
0.60 |
10.00-11. 50 |
0.50-0.70 |
– |
– |
V 0.25〜0.40 |
118 |
15Cr12WMoV(a) |
1Cr12WMoV(a) |
0.12-0.18 |
0.50 |
0.50-0.90 |
0.040 |
0.030 |
0.40-0.80 |
11.00-13. 00 |
0.50-0.70 |
0.30 |
– |
W 0.70〜1.10 V 0.15〜0.30 |
119 |
158Cr12MoV(a) |
1Cr12MoV(a) |
1.45-1.70 |
0.40 |
0.35 |
0.030 |
0.025 |
– |
11.00-12. 50 |
0.40-0.60 |
– |
– |
V 0.15〜0.30 |
120 |
21Cr12MoV(a) |
2Cr12MoV(a) |
0.18-0.24 |
0.10- 0.50 |
0.30-0.80 |
0.030 |
0.025 |
0.30-0.60 |
11.00-12. 50 |
0.80-1.20 |
0.30 |
– |
V 0.25〜0.35 |
121 |
18Cr12MoVNbN(a) |
2Cr12MoVNbN(a) |
0.15-0.20 |
0.50 |
0.50-1.00 |
0.040 |
0.030 |
(b) |
10.00-13. 00 |
0.30-0.90 |
– |
0.05- 0.10 |
V 0.10〜0.40 Nb 0.20〜0.60 |
122 |
13Cr11Ni2W2MoV(a) |
1Cr11Ni2W2MoV(a) |
0.10-0.16 |
0.60 |
0.60 |
0.035 |
0.030 |
1.40-1.80 |
10.50-12. 00 |
0.35-0.50 |
– |
– |
W 1.50〜2.00 V 0.18〜0.30 |
123 |
23Cr12NiWMoV(a) |
2Cr12NiMoWV(a) |
0.20-0.25 |
0.50 |
0.50-1.00 |
0.030 |
0.025 |
0.50-1.00 |
11.00-12. 50 |
0.90-1.25 |
0.30 |
– |
W 0.9〜1.25, V 0.20〜0.30 |
124 |
13Cr14Ni3W2VB(a) |
1Cr14Ni3W2VB(a) |
0.10-0.16 |
0.60 |
0.60 |
0.300 |
0.030 |
2.80-3.40 |
13.00-15. 00 |
– |
– |
– |
W 1.60~2.20 Ti≤0.05,B≤0.004 V 0.18~0.28 |
125 |
14Cr12Ni2WMoVNb(a) |
1Cr12Ni2WMoVNb(a) |
0.11-0.17 |
0.60 |
0.60 |
0.030 |
0.025 |
1.80-2.20 |
11.00-12. 00 |
0.80-1.20 |
– |
– |
W 0.70~1.00, V 0.20~0.30 Nb 0.15~0.30 |
126 |
15Cr11NiMoNbVN(a) |
2Cr11NiMoNbVN(a) |
0.15-0.20 |
0.50 |
0.50-0.80 |
0.020 |
0.015 |
0.30-0.60 |
10.00-12. 00 |
0.60-0.90 |
|
V 0.20~0.30,N 0.04~0.09,Cu≤0.1,Al≤0.30,Nb 0.20~0.60 |
|
127 |
45Cr9Si3(a) |
4Cr9Si2(a) |
0.40-0.50 |
3.00- 3.50 |
0.60 |
0.030 |
0.030 |
(b) |
7.50-9.50 |
– |
– |
– |
– |
128 |
40Cr10Si2Mo(a) |
4Cr10Si2Mo(a) |
0.35-0.45 |
1.90- 2.60 |
0.70 |
0.035 |
0.030 |
(b) |
9.00-10.50 |
0.70-0.90 |
– |
– |
– |
129 |
80Cr20Si2Ni1(a) |
8Cr20Si2Ni(a) |
0.75-0.85 |
1.75- 2.25 |
0.20-0.60 |
0.030 |
0.030 |
1.15-1.65 |
19.00-20. 50 |
– |
– |
– |
– |
表 4 马氏体类不锈钢的标准牌号及其化学成分
表5 沉淀硬化类不锈钢的标准牌号及其化学成分
序号 |
新牌号 |
旧牌号 |
化学成份(质量分数),% |
||||||||||
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
Cu |
N |
其它元素 |
|||
130 |
05Cr13Ni8Mo2Al |
|
0.05 |
0.10 |
0.20 |
0.010 |
0.008 |
7.50-8.50 |
12.25-13. 25 |
2.00-2.50 |
– |
0.01 |
Al 0.90〜1.35 |
131 |
03Cr12Ni9Cu2NbTi |
|
0.03 |
0.50 |
0.50 |
0.040 |
0.030 |
7.50-9.50 |
11.00-12. 50 |
0.50 |
1.50-2.50 |
– |
Ti 0.80〜1.40 Nb 0.10〜0.50 |
132 |
07Cr15Ni5Cu4Nb |
|
0.07 |
1.00 |
1.00 |
0.040 |
0.030 |
3.50-5.50 |
14.00-15. 50 |
– |
2.50-4.50 |
– |
Nb 0.15〜0.45 |
133 |
07Cr17Ni4Cu4Nb(a) |
0Cr17Ni4Cu4Nb(a) |
0.07 |
1.00 |
1.00 |
0.040 |
0.030 |
3.00-5.00 |
15.00-17. 50 |
– |
3.00-5.00 |
– |
Nb 0.15〜0.45 |
134 |
09Cr17Ni7Al(a) |
0Cr17Ni7Al(a) |
0.09 |
1.00 |
1.00 |
0.040 |
0.030 |
6.50-7.70 |
16.00-18. 00 |
– |
– |
– |
Al 0.75〜1.50 |
135 |
09Cr15Ni7Mo3Al |
0Cr15Ni7Mo2Al |
0.09 |
1.00 |
1.00 |
0.040 |
0.030 |
6.50-7. 70 |
14.00-16. 00 |
2.00-3.00 |
– |
– |
Al 0.75〜1.50 |
136 |
09Cr12Mn5Ni4Mo3Al |
0Cr12Mn5Ni4Mo3Al |
0.09 |
0.80 |
4.40-5.30 |
0.030 |
0.025 |
4.00-5.00 |
11.00-12. 00 |
2.70-3.30 |
– |
– |
Al 0.50〜1.00 |
137 |
09Cr17Ni5Mo3N |
|
0.07-0.11 |
0.50 |
0.50-1.25 |
0.040 |
0.030 |
4.00-5.00 |
16.00-17. 00 |
2.50-3.20 |
– |
0.07- 0.13 |
– |
138 |
08Cr17Ni7AlTi |
|
0.08 |
1.00 |
1.00 |
0.040 |
0.030 |
6.00-7.50 |
16.00-17. 50 |
– |
– |
– |
Al≤0.40 Ti 0.40〜1.20 |
139 |
08Cr15Ni25MoTi2AlVB |
0Cr15Ni25MoTi2AlVB |
0.08 |
1.00 |
2.00 |
0.045 |
0.030 |
24.00-27. 00 |
13.50-16. 00 |
1.00-1.50 |
– |
– |
Al≤0.35 Ti 1.90〜2.35 B 0.001〜0.010 V 0.10〜0.50 |
注:表中所列成分除标明范围或最小值,其余均为最大值。
a:可作耐热钢使用。
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