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Introduction to EH36 material of ship steel
1. Introduction to EH36 steel plate:
EH36 is a shipbuilding steel plate certified by a classification society. It is implemented in accordance with the standards of nine countries. It implements the classification society standards: China CCS, American ABS, German GL, French BV, Norwegian DNV, Japanese NK, British LR, Italian RINA, and Korean KR. , (Norway DNV merged with Germany to form: VL). The impact temperature of EH36 steel plate is -40 degrees. The same DH36, EH36, and FH36 steel plates are all high-strength ship plates. China Classification Society grades are divided into four grades: A, B, D, and E. Due to the stricter requirements for shipbuilding plates, in Adding alloy elements, Nb, V, and Ti to steel, combined with the production process of steel plates, improves the toughness of steel while ensuring the mechanical properties of high-strength ship plates. The delivery status of EH36 steel plate is TMCP, hot rolling, controlled rolling and normalizing delivery.
2. Chemical composition of EH36 steel plate:
- Carbon content (C): generally between 0.18-0.25%.
- Silicon content (Si): generally between 0.10-0.50%.
- Manganese content (Mn): generally between 0.90-1.60%.
- Phosphorus content (P): generally not more than 0.030%.
- Sulfur content (S): generally not more than 0.025%.
- Copper content (Cu): generally not more than 0.35%.
- Nickel content (Ni): generally not more than 0.40%.
- Vanadium content (V): generally not more than 0.02%.
- Chromium content (Cr): generally not more than 0.20%.
- Boron content (B): Optional addition, adjust as needed.
3. Mechanical properties of EH36 ship plate:
Upper yield strength (R Eh /MPa): ≥355
Tensile strength (Rm/MPa): 490-630
Elongation after break (A%): ≥21
V-shaped impact test:
Test temperature (℃): -40
Thickness (mm) ≤50 Impact absorption energy KV2/J
Portrait: 34, landscape: 24
Thickness (mm) 50-70 Impact absorption energy KV2/J
The length should not be less than 41 and the width should not be less than 27
Thickness (mm) 70-150 Impact absorption energy KV2/J
Portrait: 50, landscape: 34
4. Classification Society Certification of EH36 Ship Plate:
EH36 ship plate is a high-strength structural steel for ship hulls. Shipbuilding steel generally refers to steel for hull structures. It refers to steel used to make hull structures produced in accordance with the requirements of classification society manufacturing specifications. Marine steel materials of different national standards can be produced according to user needs, such as China CCS, American ABS, and German GL, French BV, Norwegian DNV, Japanese NK, British LR, Italian RINA, Korean KR (Norwegian DNV and German GL merged into: VL).
5. EH36 ship plates are high-strength structural steel for ship hulls. Shipbuilding steel generally refers to steel for hull structures, which refers to steel used to make hull structures produced in accordance with the requirements of classification society manufacturing specifications; EH36 series products have good comprehensive mechanical properties, welding properties, and process properties. It is suitable for manufacturing structural parts such as ship hull structures, docks, oil production platforms, marine pipelines, coastal power plants, dock facilities, etc. in ocean, coastal and inland navigation areas. It is ordered, scheduled and sold as special steel, generally including ship plates and section steel. etc. for corporate use.
