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Grades and Chemical Composition of Stainless Steel for Springs

@Grades and Chemical Composition


Grade Chemical Composition (%)
Classification NAS JIS C Si Mn Ni Cr Mo Cu Others
Standard Austenitic Stainless Steel NAS
301
SUS
301
0.15 1.00 2.00 6.00`
8.00
16.00`
18.00
- - -
NAS
304
SUS
304
0.08 1.00 2.00 8.00`
10.50
18.00`
20.00
- - -
NAS
316
SUS
316
0.08 1.00 2.00 10.00`
14.00
16.00`
18.00
2.00`
3.00
- -

Granular Corrosion
Resistant Austenitic
Stainless Steel

NAS
301L
SUS
301L
0.030 1.00 2.00 6.00`
8.00
16.00`
18.00
- - N 0.20
NAS
304L
SUS
304L
0.030 1.00 2.00 9.00`
13.00
18.00`
20.00
- - -
NAS
304LN
SUS
304LN
0.030 1.00 2.00 8.50`
11.50
17.00`
19.00
- - N 0.12`0.25
NAS
316L
SUS
316L
0.030 1.00 2.00 12.00`
15.00
16.00`
18.00
2.00`
3.00
- -

Duplex Stainless Steel

NAS
64
SUS
329J4L
0.030 0.90 1.00 5.50`
7.20
24.00`
25.00
3.00`
3.50
- N 0.08`0.20A
W 0.05`0.30

High Nickel
High Grade
Austenitic Stainless Stee

NAS
155N
- 0.030 1.00 1.00 14.50`
16.50
17.50`
19.00
3.80`
4.00
2.80`
4.00
N 0.15`
0.21
NAS
254N
SUS
836L
0.030 1.00 1.00 24.00`
26.00
22.00`
24.00
5.00`
6.00
- N 0.17`0.22
NAS
354N
- 0.030 1.00 1.00 34.00`
36.00
22.00`
24.00
7.00`
8.00
- N 0.17`0.22

High Strength Stainless Steel

NAS
631
SUS
631
0.09 1.00 1.00 6.50`
7.75
16.00`
18.00
- - Al 0.75`1.50
NAS
301N
SUS
301
0.15 0.80`
1.00
2.00 6.00`
8.00
16.00`
18.00
- - N 0.03`0.70

Non-Magnetic
High Strength Stainless Steel

NAS
305
SUS
305
0.12 1.00 2.00 10.50`
13.00
17.00`
19.00
- - -
NAS
NM15M
- 0.040`
0.090
0.90 14.00`
15.00
4.00`
4.60
16.50`
17.50
- - N 0.30`0.35
NAS
304LG
(Comparable
to SUS305)
0.030 1.00 2.00 11.00`
13.00
18.00`
20.00
- - -
NAS
NM17
- 0.04`
0.09
0.09 16.00`
17.00
7.00`
8.00
16.50`
17.50
- - N 0.10`0.15

Heat Resistant
Austenitic Stainless Steel

NAS
310S
SUS
310S
0.08 1.50 2.00 19.00`
22.00
24.00`
26.00
- - -
Ferritic Stainless Steel - SUS
430
0.12 0.75 1.00 - 16.00`
18.00
- - -

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