| Applicable vessel types | Products | Features |
|---|---|---|
| General | ◎AH32, DH32, EH32 AH36, DH36, EH36 AH40, DH40, EH40 |
●Strength and base metal toughness with low Ceq contents are ensured by using TMCP ●High heat input and high HAZ toughness by using Ti |
| Gas carriers | ◎KL24, KL27 KL33, KL37 (Including materials equivalent to other classifications) |
●Low carbon content, reduction of impurity elements ⇒Ensuring high heat input and HAZ toughness at low temperatures such as around -60°C |
| Applicable vessel types | Products | Features | ||
|---|---|---|---|---|
| Multi-purpose Gas Carriers |
◎Ammonia SCC resistance Low-temperature steel plates Application for tanks and secondary barrier (Equivalent to KL27 and KL33) |
●Ensuring base metal properties and HAZ toughness of plates with a thickness of 30 mm or less at low temperatures down to about −60°C. ●Lowering carbon content (0.05% compared to conventional steel 0.08%) to reduce the HAZ hardness →Improved ammonia stress corrosion cracking resistance ●Stable HAZ toughness Strict control of controlled rolling conditions →Stable reduction of YR (90% or less) |
||
| Large Container Ships |
◎Heavy-thick steel plates for High heat input welding Hatch coaming for sheer strakes |
EH40 EH36 |
●Heavy-thick high-strength steel plates, 1-pass vertical position weldable by SEGARC welding up to 65 mm thickness ●Use of TMCP at a high cooling rate with low C and low Ceq contents →Ensuring HAZ toughness in high heat input welding (Ensuring HAZ toughness at -20°C to -40°C with a welding heat input of 400 kJ/cm) |
⇒The welding time can be shortened to 1/10 compared to conventional CO2 multi-layer welding. |
| EH47 | ●Heavy-thick high-strength steel, can be ensured one-pass vertical welding by SEGARC welding up to 55 mm thickness | |||
| ◎EH36 steel plate for High heat input welding Used for sheer strakes at the longitudinal center of the hull |
●one-pass vertical position weldable by Electro-Gas Arc welding up to 20 mm thickness ●Low C / Low Ceq (Ensuring HAZ toughness at -40°C with a welding heat input of 250 kJ/cm) |
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◎Corrosion resistant steel for bottom plate of COT “KPAC-1” Corrosion resistant steel for bottom plate of COT “KPAC-2” | ●Applicable without coating | |||
| Offshore Structures | ◎Grade F heavy-thick steel plate | ●Toughness at a temperature of -60°C can be ensured up to 90 mm thickness | ||
| General | ◎Residual stress controlled steel plate
(Hizumi-less) (Super-Hizumi-less) |
●Deformation control by bar steel longitudinal cutting, etc. | ||
* Please refer to the following link for products other than steel plates.
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