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Steel plates are used as main materials in petrochemistry, LNG, desalination facilities, nuclear power plants, shipbuilding and construction accounting for about 10 percent of global steel demand.
n addition, the nation's supply of steel plates is considerably low in comparison to domestic demand because of the new demand creation of steel plates as a result of the development of energy resources. Consequently, major domestic steel makers are establishing new steel plate works.
Steel Plates means thick steel sheet. It is usually 6mm thick and used for shipbuilding. It is widely used for bridge construction and various industrial machinery.
Dongkuk Steel gained classification standard from a classification society of ten developed countries including Japan and the United States. The steel plates are widely used for shipbuilding, general structure, welding construction, boiler and pressure container, machinery structure according to the material.
The steel plate is widely used for bridges, construction, and steel structures, and its use is increasing because of growing size and height of buildings.
| Standard no | Types and classes |
|---|---|
| KS D3503/JIS G3101 | SS400, SS490 |
| KS D3515, JIS G3106 | SM400A, SM400B, SM400C, SM490A, SM490B, SM490C, SM490YA, SM490YB, SM520B, SM520C, SM570 |
| KS D3868 | HSB500, HSB500L, HSB600, HSB600L |
| JIS G 3136 | SN400A, SN400B, SN400C, SN490B, SN490C |
| ASTM | A36, A283, A572, A573, A709 |
| ASME | SA36, SA283, SA516 |
| BS 4360 | 43A, 50A, 50B, 50C |
| EN 10025 | S235JR, S235JO, S235J2, S275JR, S275JO, S275J2, S355JR, S355JO, S355J2, S275N, S275NL, S355N, S355NL, S275M, S275ML, S355M, S355ML, S355K2, S355N, S355NL, S420M, S420ML, S420N, S420NL, S460M, S460ML |
| DIN 17100 | ST 44-2, ST 44-3, ST 52-3, ST 50-2 |
| CSA | 300W, 350W, 380W |
| AS 3678 | GR250, GR300, GR350, GR400 |
| BS 4360 | 40A, 40B, 40C, 40D, 43A, 43B, 43C, 43D, 50A, 50B, 50C, 50D |
With development of the energy industry, the demand for steel pipes for pipelines and oil wells is increasing. In addition, steel pipes are used for pipes, structures, steel pipe piles, boilers, and heat exchangers.
| Standard no | Types and classes |
|---|---|
| ASTM/ASME | A285, A516 |
| JIS G 3103 | SB410, SB450, SB480 |
| JIS G 3115 | SPV235, SPV315, SPV355, SPV410 |
| Steel | Classification society |
|---|---|
| Ship classification general steel : A,B,D,E. Ship classification High Strengthen steel : AH32, DH32, AH36, DH36, EH32, EH36, AH40, DH40, EH40 |
KR, NK, ABS, GL, LR, DNV, RINA, BV, CCS, RS |
| Standard no. | Types and classes |
|---|---|
| KS D3752 | SM45C |
| JIS G4051 | S45C |
| SAE J 403 | 1045 |
The shipping / offshore mooring steel pipe and steel sheet are used for Resources (Oil & Gas) Exploration, development, drilling, production, storage and transportation
| Standards | sign | 3자 인증기관 |
|---|---|---|
| EN-10225 | S355G2+N | ABS, DNV |
| S355G3+N | ABS, DNV | |
| S355G5+M | ABS, DNV | |
| S355G6+M | ABS, DNV | |
| S355G7+M | ABS, DNV | |
| S355G8+M | ABS, DNV | |
| S355G9+M | ABS, DNV | |
| S355G10+M | ABS, DNV | |
| S420G1+M | ABS, DNV | |
| S420G2+M | ABS, DNV | |
| S460G1+M | ABS | |
| S460G2+M | ABS | |
| Norsok M-120 | Y05 | DNV |
| Y20 | DNV | |
| Y30 | DNV | |
| Y40 | DNV | |
| API | API 2W-50 | ABS, DNV, BV |
| API 2W-60 | ABS, DNV | |
| API 2H-42 | - | |
| API 2H-50 | - | |
| DNV OS B101 | A/D/E420, DW/EW420 | DNV |
| Total | S355KT/KL+20 | - |
| S355KT/KL0 | - | |
| S355KT/KL-20 | - | |
| S355KT/KL-40 | - |