AH36 Ship Structural Steel Plate
Certification ABS-AH36, BV-AH36, CCS-AH36, DNV-AH36, GL-AH36, KR-AH36, LR-AH36, NK-AH36, RINA-AH36, ZY-AH36
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Gnee Steel (Tianjin) Co., Ltd. is one of the most professional ah36 ship structural steel plate manufacturers and suppliers in China. Welcome to wholesale customized ah36 ship structural steel plate at competitive price from our factory. Good service and quality products are available.
AH36 steel plate is a high-strength, high-toughness steel plate for hull structure.
AH36, H stands for high strength and A stands for the grade of steel, which can be divided into 4 grades (A, B, D, E). This code means high-strength A-grade marine steel with a yield strength of 355Mpa
AH36 ship plate plays an important role in shipbuilding and marine engineering with its high strength, high toughness, good weldability and corrosion resistance. Selecting high-quality AH36 ship plate and performing reasonable processing and welding can ensure the safety and durability of the hull and provide users with reliable performance and long service life
AH36 steel plate, as a high-performance steel designed for shipbuilding and offshore platforms, has a unique performance that makes it occupy an important position in many engineering projects. This steel plate not only meets the standard requirements of nine major classification societies such as CCS, ABS, DNV GL, LR, BV, NK, and KR, but also shows excellent performance in practical applications. The AH grade is an international standard that specifically represents marine steel and is a grade for professional steel.
2. Classification Society Certification
Certification ABS-AH36, BV-AH36, CCS-AH36, DNV-AH36, GL-AH36, KR-AH36, LR-AH36, NK-AH36, RINA-AH36, ZY-AH36
ABS, BV, CCS, DNV, GL, KR, LR, NK, RINA, ZY, etc. can be produced by classification societies in various countries
Key Differences Between AH36 and EH36
Chemical Composition
| Element | AH36 | EH36 |
|---|---|---|
| Carbon (C) | ≤0.18% | ≤0.18% |
| Manganese (Mn) | 0.90–1.60% | 0.90–1.60% |
| Silicon (Si) | ≤0.50% | ≤0.50% |
| Micro-alloys | Optional (Nb, V, Ti) | Required (Nb, V, Ti) |
Key Insight:
EH36 includes mandatory micro-alloying elements (niobium, vanadium, titanium) for enhanced grain refinement and toughness.
AH36 allows flexibility in micro-alloying, making it more cost-effective for standard applications.
Comparison of AH36 steel plate with other high-strength marine steels
| Property | AH36 | DH36 | EH36 |
|---|---|---|---|
| Yield Strength (MPa) | ≥355 | ≥355 | ≥355 |
| Impact Temperature (°C) | 0 | -20 | -40 |
| Typical Applications | Ships in temperate zones | Ships in cold regions | Ships in polar/extreme cold zones |
| Advantages | Cost-effective balance | Enhanced low-temp toughness | Superior cryogenic performance |
Excellent handling properties are based on thermomechanical treatment that reduces the need for e cessive use of alloying elements to strengthen the steel. TMCP plates are thermomechanically controlled rolled, and with greater plate thicknesses, also accelerated cooled after rolling.
AH36 Ship Structural Steel Plate Application areas
Shipbuilding Used to build decks, shipboards and other structural components of various ocean-going ships, providing strength and stability for the main stress-bearing parts of the hull structure (such as decks, bottoms, sides, etc.), and also used for parts with high corrosion resistance requirements (such as hulls, ballast tanks and sewage tanks, etc.), and can effectively resist seawater erosion after surface treatment123.
Marine engineering Construction of offshore oil drilling platform base stations, etc., is an indispensable material for building offshore platforms, and can also be used for the construction of marine structures such as offshore wind farms, which can resist wind and waves and seawater erosion and ensure the stability of the structure23.
Cross-sea bridge Used for cross-sea bridge leg piles, pillars, derricks, etc., to provide stable structural support for large offshore buildings such as cross-sea bridges
Overview:
Higher-strength steel grades certified for use in shipbuilding capacities.
Available in four ordinary-strength grades: A, B, D and E.
Available in 12 higher-strength grades, but Gnee only readily stocks grades AH36, DH36, EH36 and FH36. Other higher-strength grades, may be special ordered.
Used in the building of structural parts of ships, barges and marine equipment.
MATERIAL PROPERTIES
The following material properties required by LR and will be confirmed on the Mill Test Report. Elongation is dependent on plate thickness, but is listed in a range below.
|
GRADE |
YIELD POINT (KSI) |
TENSILE STRENGTH (KSI) |
MIN. 2" ELONGATION % |
|
A |
34 |
58-75 |
22 |
|
B |
34 |
58-75 |
22 |
|
D |
34 |
58-75 |
22 |
|
E |
34 |
58-75 |
22 |
|
AH36 |
51 |
71-90 |
20 |
|
DH36 |
51 |
71-90 |
20 |
|
EH36 |
51 |
71-90 |
20 |
|
FH36 |
51 |
71-90 |
20 |
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