Integrity．Purity
More
Semicondutor & Medical Specialty Materials
More
Reasonable Price．Accurate Delivery Time．Best Quality
More
Our supplier, Nippon Koshuha Steel, also manufactures stainless steel and special alloys required for medical equipment, semiconductor manufacturing equipment, and other industries.
| Classification | Steel Grade | Properties and Applications |
|---|---|---|
| Austenitic Stainless Steel |
SUS304V High-purity Steel |
There are three smelting methods based on application (high purity): ① Atmospheric-VAR (single-melt material), ② VIF-VAR (double-melt material), ③ VIF-VAR-VAR (triple-melt material). Suitable for medical equipment, guide wires, and other applications. |
| SUS316LV High-purity Steel |
A modified ultra-low carbon based on 316 stainless steel, retaining the properties of 316 while enhancing resistance to intergranular corrosion. Suitable for medical stents, guide wires, and flow control valves for semiconductor manufacturing equipment. | |
| Martensitic Stainless Steel |
SUS420J2 | A steel grade with high hardness after quenching. Suitable for cutting tools, nozzles, valve seats, valves, and other applications. |
| SUS440C | The hardest grade among all stainless steels. Suitable for medical instruments, nozzles, bearings, and other applications. | |
| SMX70 | A proprietary steel grade of Nippon Koshuha Steel. Similar to the SUS440 series, with improved machinability. Suitable for linear guides, slides, and other applications. | |
| 420MOD | After heat treatment, this steel grade achieves hardness equivalent to SUS440C and corrosion resistance comparable to SUS630. Suitable for medical drills, cutting tools, injection screws, and other applications. | |
| Precipitation Hardening Stainless Steel |
SUS630 | A copper-added precipitation-hardening steel with high corrosion resistance. Suitable for valves, shafts, turbine components, and applications in the chemical fiber industry. |
| Classification | Steel Grade | Composition % | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | Ni | Cr | Mo | Cu | Nb+Ta | |||
| Austenitic Stainless Steel |
SUS304V High-purity Steel |
MAX 0.08 | MAX 1.00 | MAX 2.00 | MAX 0.045 | MAX 0.030 | 8.00~10.50 | 18.0~20.0 | ||||
| SUS316L | MAX 0.03 | MAX 1.00 | MAX 2.00 | MAX 0.045 | MAX 0.030 | 12.00~15.00 | 16.00~18.00 | 2.00~3.00 | ||||
| Martensitic Stainless Steel |
SUS420J2 | 0.26~0.40 | MAX 1.00 | MAX 1.00 | MAX 0.040 | MAX 0.030 | MAX 0.60 | 12.00~14.00 | ||||
| SUS440C | 0.95~1.20 | MAX 1.00 | MAX 1.00 | MAX 0.040 | MAX 0.030 | MAX 0.60 | 16.00~18.00 | MAX 0.75 | ||||
| SMX70 | The proprietary steel grade is not disclosed. | |||||||||||
| 420MOD | The proprietary steel grade is not disclosed. | |||||||||||
| Precipitation Hardening Stainless Steel |
SUS630 | MAX 0.07 | MAX 1.00 | MAX 1.00 | MAX 0.040 | MAX 0.030 | 3.00~5.00 | 15.00~17.50 | 3.00~5.00 | 0.15~0.45 | ||
※Please inquire if you require steel grades not listed in the table. The catalog of Nippon Koshuha’s cold-finished stainless steel products (
Download).
| Super Alloys | Representative Materials | Specifications and Applications |
|---|---|---|
| Heat-Resistant Materials | Iron-based alloys such as INCOLOY; nickel-based alloys such as INCONEL and NIMONIC, etc. | |
| Low Thermal Expansion & Sealing Alloys | Low thermal expansion alloys such as INVAR and SUPERINVAR; sealing alloys such as KOVAR and 52Ni, etc. | |
| Welding Materials | Available alloy types include Ni-Cu alloys, Ni-Cr-Fe alloys, Ni-Mo alloys, and Ni-Cr-Mo alloys, etc. | |
| Corrosion-resistant Materials | Pure Nickel (Nickel 201); Nickel-Copper alloys (MONEL 400); Iron-Based alloys (INCOLOY 825), etc. | |
| Corrosion-resistant Electromagnetic Materials | High corrosion-resistant electromagnetic materials – GDM series; Super corrosion-resistant electromagnetic materials – KTAS series, etc. | |
| High-tensile and Constant-elastic Materials | High-tensile materials (17-7PH); Constant-elastic materials (ELINVAR), etc. | |
※Please inquire if you require other steel grades not listed in the table, such as magnetic-permeable alloys like PERMALLOY.
No. 120, Wugong 1st Rd., Wugu Dist., New Taipei City 248, Taiwan
+886-2-2298-0101
+886-2-2298-2982
No. 13, Industrial Park 8th Rd., Xitun Dist., Taichung City 407, Taiwan
+886-4-2359-0962
+886-4-2359-1048
No. 4, Dadi St., Xiaogang Dist., Kaohsiung City 812, Taiwan
+886-7-802-0204
+886-7-801-9096
