| Category | Steel grade | Standard | Country | Application |
|---|---|---|---|---|
| Special Alloy | STR4 | KS | Korea | KS standard martensite heat resistant steel |
| Special Alloy | STR3 | KS | Korea | KS standard martensite heat resistant steel |
| Special Alloy | STRl | KS | Korea | KS standard martensite heat resistant steel |
| Special Alloy | STR446 | KS | Korea | KS standard ferrite heat resistant steel |
| Special Alloy | STR661 | KS | Korea | KS standard austenitic heat resistant steel |
| Special Alloy | STR660 | KS | Korea | KS standard austenitic heat resistant steel |
| Special Alloy | STR330 | KS | Korea | KS standard austenitic heat resistant steel |
| Special Alloy | STR310 | KS | Korea | KS standard austenitic heat resistant steel |
| Special Alloy | STR309 | KS | Korea | KS standard austenitic heat resistant steel |
| Special Alloy | STR38 | KS | Korea | KS standard austenitic heat resistant steel |
| Special Alloy | STR37 | KS | Korea | KS standard austenitic heat resistant steel |
| Special Alloy | STR36 | KS | Korea | KS standard austenitic heat resistant steel |
| Special Alloy | STR35 | KS | Korea | KS standard austenitic heat resistant steel |
| Special Alloy | STR31 | KS | Korea | KS standard austenitic heat resistant steel |
| Special Alloy | STS430TKC | KS | Korea | KS standard mechanical and structure with stainless steel pipe(KS D3536-1992) |
| Special Alloy | STS430TKA | KS | Korea | KS standard mechanical and structure with stainless steel pipe(KS D3536-1992) |
| Special Alloy | STS420J2TKA | KS | Korea | KS standard mechanical and structure with stainless steel pipe(KS D3536-1992) |
| Special Alloy | STS420J1TKA | KS | Korea | KS standard mechanical and structure with stainless steel pipe(KS D3536-1992) |
| Special Alloy | STS410TKC | KS | Korea | KS standard mechanical and structure with stainless steel pipe(KS D3536-1992) |
| Special Alloy | STS410TKA | KS | Korea | KS standard mechanical and structure with stainless steel pipe(KS D3536-1992) |
| Special Alloy | STS347TKA | KS | Korea | KS standard mechanical and structure with stainless steel pipe(KS D3536-1992) |
| Special Alloy | STS321TKA | KS | Korea | KS standard mechanical and structure with stainless steel pipe(KS D3536-1992) |
| Special Alloy | STS316TKC | KS | Korea | KS standard mechanical and structure with stainless steel pipe(KS D3536-1992) |
| Special Alloy | STS316TKA | KS | Korea | KS standard mechanical and structure with stainless steel pipe(KS D3536-1992) |
| Special Alloy | STS304TKC | KS | Korea | KS standard mechanical and structure with stainless steel pipe(KS D3536-1992) |
| Special Alloy | STS304TKA | KS | Korea | KS standard mechanical and structure with stainless steel pipe(KS D3536-1992) |
| Special Alloy | STS317J4L | KS | Korea | KS standard austenite stainless steel bars(KS D3706-1992) |
| Special Alloy | STS317J1 | KS | Korea | KS standard austenite stainless steel bars(KS D3706-1992) |
| Special Alloy | STS317L | KS | Korea | KS standard austenite stainless steel bars(KS D3706-1992) |
| Special Alloy | STS317 | KS | Korea | KS standard austenite stainless steel bars(KS D3706-1992) |
| Special Alloy | STS316J1L | KS | Korea | KS standard austenite stainless steel bars(KS D3706-1992) |
| Special Alloy | STS316J1 | KS | Korea | KS standard austenite stainless steel bars(KS D3706-1992) |
| Special Alloy | STS316Ti | KS | Korea | KS standard austenite stainless steel bars(KS D3706-1992) |
| Special Alloy | STS316LN | KS | Korea | KS standard austenite stainless steel bars(KS D3706-1992) |
| Special Alloy | STS316L | KS | Korea | KS standard austenite stainless steel bars(KS D3706-1992) |
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