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We make advanced non-magnetic chromium-coated workable stainless steels that are resistant to the heat, corrosion and cracking experienced in harsh environments.
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We use the latest innovations to manufacture the best alloy for each environment.
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POLKA and Checker stainless steel flooring from Nippon Yakin Kogyo, made of Type 304 stainless steel, these durable products are resistant to heat and corrosion, and feature special mechanical properties.The design incorporates both safety features and aesthetic appeal making these plates suitable for many locations.
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〈 High-Performance Alloys 〉
| Type | Chemical composition(％) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Class | NAS | JIS | C | Si | Mn | Ni | Cr | Mo | Cu | other |
| Corrosion Resistant Alloys | NAS 255 | SUS890L | ≦0.020 | ≦1.00 | ≦2.00 | 23.00～ 28.00 |
19.00～ 23.00 |
4.00～ 5.00 |
1.00～ 2.00 |
- |
| NAS 335X | - | ≦0.070 | ≦1.00 | ≦2.00 | 32.00～ 38.00 |
19.00～ 21.00 |
2.00～ 3.00 |
3.00～ 4.00 |
Nb 8xC～1.00 | |
| NAS 185N | SUS312L | ≦0.020 | ≦0.70 | ≦1.00 | 17.50～ 18.50 |
19.50～ 20.50 |
6.00～ 6.50 |
0.50～ 1.00 |
N 0.18～0.25 | |
| NAS 254N | SUS836L | ≦0.030 | ≦1.00 | ≦1.00 | 24.00～ 26.00 |
22.00～ 24.00 |
5.00～ 6.00 |
- | N 0.17～0.22 | |
| NAS 254NM | - | ≦0.030 | ≦1.00 | ≦2.00 | 23.50～ 25.20 |
20.00～ 22.00 |
6.00～ 7.00 |
- | N 0.18～0.25 | |
| NAS 255NM | - | ≦0.020 | ≦0.50 | ≦2.00 | 24.00～ 26.00 |
19.00～ 21.00 |
6.00～ 7.00 |
0.50～ 1.50 |
N 0.15～0.25 | |
| NAS 224N | - | ≦0.030 | ≦1.00 | ≦1.50 | 20.00～ 23.00 |
22.00～ 24.00 |
6.00～ 8.00 |
≦0.40 | N 0.21～0.32 | |
| NAS 325N | - | ≦0.015 | ≦0.3 | ≦2.0 | 30.00～ 32.00 |
26.00～ 28.00 |
6.00～ 7.00 |
1.00～ 1.40 |
N 0.15～0.25 | |
| NAS 354N | - | ≦0.030 | ≦1.00 | ≦1.00 | 34.00～ 36.00 |
22.00～ 24.00 |
7.00～ 8.00 |
- | N 0.17～0.24 | |
| NAS 355N | - | ≦0.030 | ≦1.00 | ≦1.00 | 35.00～ 36.00 |
22.00～ 24.00 |
7.00～ 8.00 |
3.00～ 4.00 |
N 0.19 ～0.24 | |
| NAS 329J3L | SUS329J3L | ≦0.030 | ≦1.00 | ≦2.00 | 4.50～ 6.50 |
21.00～ 24.00 |
2.50～ 3.50 |
- | N 0.08～0.20 | |
| NAS 64 | SUS329J4L | ≦0.030 | ≦0.90 | ≦1.00 | 5.50～ 7.20 |
24.00～ 26.00 |
3.00～ 3.50 |
- | N 0.08～0.20、W 0.05～0.30 | |
| NAS 74N | SUS327L1 | ≦0.030 | ≦0.80 | ≦1.20 | 6.00～ 8.00 |
24.00～ 26.00 |
3.00～ 5.00 |
≦0.50 | N 0.24～0.32 | |
| NAS 75N | - | ≦0.030 | ≦1.00 | ≦1.00 | 6.00～ 8.00 |
24.00～ 26.00 |
3.00～ 4.00 |
0.50～ 1.00 |
N 0.20～0.30、W 0.50～1.00 | |
| NAS 825 | NCF825 | ≦0.050 | ≦0.50 | ≦1.00 | 38.00～ 46.00 |
19.50～ 23.50 |
2.50～ 3.50 |
1.50～ 3.00 |
Ti 0.60～1.20 Al≦0.20 | |
| NAS 625 | NCF625 | ≦0.10 | ≦0.50 | ≦0.50 | ≦58.00 | 20.00～ 23.00 |
8.00～ 10.00 |
- | Ti≦0.40 Al≦0.40 Fe≦5.0 Co≦1.0 Nb≦3.15～4.15 | |
| NAS NW22 | NW6022 | ≦0.015 | ≦0.08 | ≦0.50 | Bal | 20.00～ 22.50 |
12.50～ 14.50 |
- | Fe 2.0～4.0、W 2.5～3.5、 V≦0.35、Co≦2.5 | |
| NAS NW276 | NW0276 | ≦0.010 | ≦0.08 | ≦1.00 | Bal | 14.50～ 16.50 |
15.0～ 17.00 |
- | Co≦2.5、Fe 4.0～7.0、 W3.0～4.5、V≦0.35 | |
| NAS NW400 | NW4400 | ≦0.30 | ≦0.5 | ≦2.0 | ≧63.0 | - | - | 28.0～ 34.0 |
Fe≦2.5 | |
| Heat Resistant Alloys | NAS H330 | - | ≦0.08 | 0.75～ 1.50 |
≦2.00 | 34.0～ 37.0 |
17.0～ 20.0 |
- | ≦1.00 | Pb≦0.005 Sn≦0.025 |
| NAS 800 | NCF800 | ≦0.10 | ≦1.00 | ≦1.50 | 30.00～ 35.00 |
19.00～ 23.00 |
- | ≦0.75 | Ti 0.15～0.60、Al 0.15～0.60 | |
| NAS 800H | NCF800H | 0.06～0.10 | ≦1.00 | ≦1.50 | 30.00～ 35.00 |
19.00～ 23.00 |
- | ≦0.75 | Ti 0.15～0.60、Al 0.15～0.60、Fe≧39.5 | |
| NAS 800T | - | 0.06～0.10 | ≦1.00 | ≦1.50 | 30.00～ 35.00 |
19.00～ 23.00 |
- | ≦0.75 | Ti 0.15～0.60、Al 0.15～0.60、Fe≧39.5 | |
| NAS H840 | - | ≦0.08 | ≦1.00 | ≦1.00 | 18.00～ 22.00 |
18.00～ 22.00 |
- | - | Ti 0.15～0.60、Al 0.15～0.60 | |
| NAS H880 | - | ≦0.030 | 0.30～ 0.50 |
0.35～ 0.65 |
24.50～ 27.00 |
22.80～ 23.90 |
1.15～ 1.35 |
≦0.25 | Al 0.20～0.40、Ti 0.25～0.45、Co 0.05～1.00、N≦0.02 | |
| NAS 600 | NCF600 | ≦0.15 | ≦0.50 | ≦1.00 | ≧72.00 | 14.00～ 17.00 |
- | ≦0.50 | Fe 6.00～10.00 | |
| NAS 601 | NCF601 | ≦0.10 | ≦0.50 | ≦1.00 | 58.00～ 63.00 |
21.00～ 25.00 |
- | ≦1.00 | Al 1.00～1.70 | |
| NAS 660 | SUH660 | ≦0.08 | ≦1.00 | ≦2.00 | 24.00～ 27.00 |
13.50～ 16.00 |
1.00～ 1.50 |
- | Ti 1.90～2.35、V 0.10～0.50 Al≦0.35、B 0.001～0.010 | |
| NAS H38X | - | 0.02〜 0.10 |
≦1.0 | ≦1.5 | 35.0〜 39.0 |
23.0〜 27.0 |
≦2.50 | ≦0.50 | Al ≦0.40、Ti ≦0.20、B ≦0.010、Co ≦3.0、W ≦2.50、N 0.15～0.30、Nb 0.4～0.9、Fe Bal. | |
| NAS HX | NW6002 | 0.05～ 0.15 |
≦1.00 | ≦1.00 | Bal | 20.50～ 23.00 |
8.00～ 10.00 |
- | Fe 17.00～20.00、Co 0.5～2.5、W 0.2～1.0 | |
| High-strength Stainless Steels | NAS 630 | SUS630 | ≦0.07 | ≦1.00 | ≦1.00 | 3.00～ 5.00 |
15.00～ 17.50 |
- | 3.00～ 5.00 |
Nb 0.15～0.45 |
| NAS 631 | SUS631 | ≦0.09 | ≦1.00 | ≦1.00 | 6.50～ 7.75 |
16.00～ 18.00 |
- | - | Al 0.75～1.50 | |
| NAS XM-19 | - | ≦0.06 | ≦0.75 | 4.00～ 6.00 |
11.50～ 13.50 |
20.50～ 23.50 |
1.50～ 3.00 |
- | Nb 0.10～0.30、V 0.10～0.30、N 0.20～0.40 | |
| Controlled Stainless Steels | NAS 36 | - | ≦0.05 | ≦0.30 | ≦0.80 | 35.0～ 37.0 |
- | - | - | - |
| NAS 36LG | - | - | - | - | - | - | - | - | - | |
| NAS 42 | - | ≦0.03 | ≦0.30 | ≦0.80 | 40.0～ 43.0 |
≦0.25 | - | - | - | |
| NAS 21-6 | - | ≦0.03 | ≦0.35 | 0.5～ 1.0 |
20.0～ 21.5 |
5.0～ 6.0 |
- | - | - | |
| NAS 22-3 | - | ≦0.08 | ≦0.35 | 0.4～ 1.0 |
21.5～ 22.5 |
3.0～ 4.0 |
- | - | - | |
| NAS 206MN | - | ≦0.05 | ≦0.30 | 5.50～ 6.50 |
19.5～ 20.5 |
≦0.3 | - | - | - | |
| NAS 29CO | - | ≦0.04 | ≦0.20 | ≦0.50 | 29.00～ 30.00 |
≦0.20 | ≦0.20 | ≦0.20 | Co 16.0～17.0 | |
| Non-Magnetic Material | 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 NM17 | - | ≦0.10 | ≦1.00 | 16.00～ 17.0 |
7.00～ 8.0 |
16.00～ 18.00 |
- | - | N≦0.20 | |
| Soft Magnetic Alloys | NAS PB | - | ≦0.05 | ≦0.50 | ≦0.80 | 45.0～ 49.0 |
- | - | - | - |
| NAS PC | - | ≦0.05 | ≦0.50 | ≦1.5 | 75.0～ 78.0 |
≦0.30 | 3.0～ 4.5 |
4.0～ 6.0 |
- | |
| Ni | NAS Ni201 | NW2201 | ≦0.02 | ≦0.3 | ≦0.3 | ≧99.0 | - | - | ≦0.2 | Fe≦0.4 |
| Neutron Absorption Material | NAS 8R10 | - | ≦0.08 | ≦1.00 | ≦2.00 | 8.00～ 10.5 |
18.00～ 20.00 |
- | - | B 1.00～1.25 |
〈 Stainless Steels 〉
| Type | Chemical composition(％) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Class | NAS | JIS | C | Si | Mn | Ni | Cr | Mo | Cu | other |
| Standard Type | NAS 301 | SUS301 | ≦0.15 | ≦1.00 | ≦2.00 | 6.00～ 8.00 |
16.00～ 18.00 |
- | - | - |
| NAS 304 | SUS304 | ≦0.08 | ≦1.00 | ≦2.00 | 8.00～ 10.50 |
18.00～ 20.00 |
- | - | - | |
| NAS 305 | SUS305 | ≦0.12 | ≦1.00 | ≦2.00 | 10.50～ 13.00 |
17.00～ 19.00 |
- | - | - | |
| NAS 316 | SUS316 | ≦0.08 | ≦1.00 | ≦2.00 | 10.00～ 14.00 |
16.00～ 18.00 |
2.00～ 3.00 |
- | - | |
| NAS 317 | SUS317 | ≦0.08 | ≦1.00 | ≦2.00 | 11.00～ 15.00 |
18.00～ 20.00 |
3.00～ 4.00 |
- | - | |
| Intergranular Corrosion Resistance | NAS 301L | SUS301L | ≦0.030 | ≦1.00 | ≦2.00 | 6.00～ 8.00 |
16.00～ 18.00 |
- | - | N≦0.20 |
| NAS 304L | SUS304L | ≦0.030 | ≦1.00 | ≦2.00 | 9.00～ 13.00 |
18.00～ 20.00 |
- | - | - | |
| NAS 347 | SUS347 | ≦0.08 | ≦1.00 | ≦2.00 | 9.00～ 13.00 |
17.00～ 19.00 |
- | - | Nb≧10×C | |
| NAS 316L | SUS316L | ≦0.030 | ≦1.00 | ≦2.00 | 12.00～ 15.00 |
16.00～ 18.00 |
2.00～ 3.00 |
- | - | |
| NAS 317L | SUS317L | ≦0.030 | ≦1.00 | ≦2.00 | 11.00～ 15.00 |
18.00～ 20.00 |
3.00～ 4.00 |
- | - | |
| For Forming | NAS 304MK | SUS304J2 | ≦0.030 | ≦1.00 | 3.60～ 5.00 |
6.50～ 8.00 |
15.50～ 17.00 |
- | 1.50～ 2.00 |
- |
| NAS 304DJ | SUS304J1 | 0.04～0.08 | ≦1.70 | ≦3.00 | 6.50～ 7.50 |
16.00～ 18.00 |
- | 2.00～ 3.00 |
- | |
| NAS 304SS | SUS304 | ≦0.08 | ≦1.00 | ≦2.00 | 8.00～ 10.50 |
18.00～ 20.00 |
- | - | - | |
| Free-Machining | NAS 303AM | SUS303 | ≦0.08 | ≦1.00 | ≦2.00 | 8.00～ 10.00 |
18.00～ 19.00 |
≦0.60 | - | S≧0.15 |
| High Strength | NAS 301N | (SUS301) | ≦0.15 | 0.80～ 1.00 |
≦2.00 | 6.00～ 8.00 |
16.00～ 18.00 |
- | - | N 0.03～0.07 |
| NAS 304N2 | SUS304N2 | ≦0.08 | ≦1.00 | ≦2.50 | 7.50～ 10.50 |
18.00～ 20.00 |
- | - | N 0.15～0.30 Nb≦0.15 | |
| Heat Resistance | NAS 309S | SUS309S | ≦0.08 | ≦1.00 | ≦2.00 | 12.00～ 15.00 |
22.00～ 24.00 |
- | - | - |
| NAS 310S | SUS310S | ≦0.08 | ≦1.50 | ≦2.00 | 19.00～ 22.00 |
24.00～ 26.00 |
- | - | - | |
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Our innovative alloys meet the precise technical needs of the electronics industry.
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With cutting edge engineering we supply robust steels to withstand chemical corrosion.
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We have perfected alloys with unsurpassed structural performance in marine conditions.
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Our alloys ensure the efficient operation of equipment in the energy industry.
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