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Product Overview

AH32, AH36, and AH40 shipbuilding steel plates are high-strength marine structural steels under ASTM A131 / ABS standards. They are widely used in shipyards and offshore engineering projects, thanks to their excellent toughness, weldability, and resistance to harsh marine environments.

As reliable marine plates, these grades are suitable for oil tankers, bulk carriers, container ships, offshore platforms, and port infrastructure.

Standards & Grades

• Standard: ASTM A131 / ABS
• Grades: AH32, AH36, AH40
• Delivery Conditions: Rolled, Normalized, TMCP
• Thickness Range: 6mm – 200mm
• Width & Length: Customizable according to project requirements

Product Photos

Available Stock & Specifications

Our warehouse maintains a steady supply of shipbuilding steel plates for fast delivery.

Specification	Availability	Notes
Thickness	6–100mm	Common sizes in stock
Width	1500–3000mm	Standard & customized widths
Length	6000–12000mm	Cut-to-length available
Rolling	Yes	Non-standard sizes can be custom rolled

Tip: Request a stock list to check available marine plate sizes.

Chemical Composition

Grade	C (max)	Mn	Si	P (max)	S (max)	Ni	Cu	Cr	Mo	V
AH32	0.18	0.90–1.60	0.50	0.035	0.035	0.40	0.35	0.20	0.08	0.02
AH36	0.18	0.90–1.60	0.50	0.035	0.035	0.40	0.35	0.20	0.08	0.02
AH40	0.18	0.90–1.60	0.50	0.035	0.035	0.40	0.35	0.20	0.08	0.02

Mechanical Properties

Grade	Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)	Impact Test (°C)
AH32	≥315	440–590	≥22	-20°C
AH36	≥355	490–620	≥21	-40°C
AH40	≥390	510–650	≥20	-40°C

📖 For a more detailed comparison of grades, properties, and equivalent standards, you may also read our technical blog: AH32 vs AH36 vs AH40 Steel: Properties & Applications.

Package & Shipment

We provide flexible logistics solutions to ensure safe and timely shipment of shipbuilding steel plates:

• Port of Shipment: Tianjin, Shanghai, Qingdao
• Delivery Options: FOB, CIF, CFR
• Packaging: Standard seaworthy packaging (steel straps & protective covers)
• Lead Time: Immediate shipment for stock sizes; custom rolling usually 20–35 days
• Global Reach: Regular exports to Southeast Asia, Middle East, Africa, Europe, and Americas

Why Choose CJM Steel?

• Large Stock: AH32 & AH36 available in common sizes; AH40 made-to-order
• Fast Response: Quotes within 24h, technical support included
• Processing Services: Cutting, beveling, drilling, blasting, primer coating
• Global Supply Chain: Long-term cooperation with shipyards and contractors worldwide

Request a Quote Today

Looking for shipbuilding steel or marine plates such as AH32, AH36, or AH40?

• ✅ Request a quick quote within 24h
• ✅ Check available stock sizes
• ✅ Ask about custom rolling and technical support

WhatsApp: +86 181 9190 6640
Email: info@cjmstainlesssteel.com

Q: What is your company’s main products/services?

A: We are a professional manufacturer for Carbon Steel, Alloy Steel and Profile products. We have the experience of steel business for more than 10 years and our products are exported to Mid East,South America,Southeast Asia,Africa,South and East Asia etc.

Q: Can I go to your factory for a visit?

A: Of course, we welcome customers from all over the world to visit our factory.

Q: What are your terms of payment?

A: 30% T/T deposite and 70% balance before shipment.

Q: What is your delivery time?

A: For stocks,we could transport the goods to loading port within 7 days after we received the deposit; For production,it usually takes about 15-30 days after receiving the deposit.

Q: Do you provide samples? Are they free or paid?

A: Samples are available for free,but the courier freight will be covered by customer account.

Q: Do you accept the third party inspection?

A:Yes, we fully accept ‌third-party inspections.

Q: Why should I buy from you not from other suppliers?

A: Integrating the superior resources of China’s steel industry, we provide customers with high-quality steel products at preferential prices, and can ensure that the goods are delivered to customers in a timely manner.

Q:How can you guarantee quality?

A: Always a pre-production sample before mass production;Always 100% inspected before shipment