Description: BBN steel is a well-known steel manufacturer and service provider in China, ASTM A131 EH36 Shipbuilding Plate is our superior product, we are favored by customers with high quality, competitive price and excellent service
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Premium High-Strength Low-Temperature Marine Structural Steel | 360 MPa Min. Yield Strength | 490–620 MPa Tensile Strength | Mandatory −40°C Charpy V-notch Impact Test | For Ice-Class, Polar & High-Latitude Marine Service | MTC, EN 10204 3.1 & Classification Society Inspection
−40°C Impact ToughnessMandatory −40°C Charpy V-notch impact test — resists low-temperature brittle fracture and ice piece impact in frigid waters.
Higher Strength Than AH32 / AH36Higher yield strength than conventional AH32 and AH36 ship steel, with 490–620 MPa tensile strength.
Weldability with Pcm / Ceq ControlCarbon equivalent and crack sensitivity indicators guide on-site welding and help avoid cold cracks at low temperature.
01Product Overview & Specifications
ASTM A131 EH36 is a premium high-strength low-temperature resistant marine structural steel grade under the ASTM A131 / A131M international standard. Compared with conventional AH32 and AH36 ship steel, EH36 features higher yield strength and outstanding ultra-low temperature toughness, with mandatory −40°C Charpy V-notch impact test performance. It is specially developed for extreme marine environments including frigid ocean waters, ice impact and severe weather conditions.
Manufactured via hot rolling and standardized heat treatment processes including normalizing, quenching and tempering, EH36 shipbuilding steel delivers stable structural strength, excellent weldability and reliable impact resistance. It effectively resists ice piece impact and low-temperature brittle fracture in harsh marine service, greatly improving the structural safety and long-term service life of polar and cold-region marine engineering equipment.
Smooth surface, uniform texture, no cracks, no rust spots
MOQ
1 Ton / Negotiable
Delivery Time
3–7 days (stock); 15–30 days (custom)
Custom Production
Yes — custom sizes, cutting and shaping available
Certification
MTC / EN 10204 3.1 / Third-party marine classification inspection
Payment Terms
T/T, L/C, Western Union, Trade Assurance
02Chemical Composition
ASTM A131 EH36 adopts an optimized low-alloy component formula with strict impurity element control (max mass fraction %) — the precise element ratio ensures high structural strength and excellent ultra-low temperature toughness while maintaining stable weldability and processability.
Element
Max %
Element
Max %
C (Carbon)
0.18
Nb (Niobium)
0.02 – 0.05
Si (Silicon)
0.10 – 0.50
V (Vanadium)
0.05 – 0.10
Mn (Manganese)
0.90 – 1.60
Ti (Titanium)
0.02
P (Phosphorus)
0.035
Cu (Copper)
0.35
S (Sulfur)
0.035
Cr (Chromium)
0.20
Al (Aluminium)
>0.015 (Min.)
Ni (Nickel)
0.40
N (Nitrogen)
—
Mo (Molybdenum)
0.08
Note: Values above are specified limits (max mass fraction unless marked as a range or minimum) per ASTM A131 / A131M. The exact heat analysis of each plate is stated in its Mill Test Certificate (MTC / EN 10204 3.1) supplied with delivery.
03Welding Performance Parameters
Professional carbon equivalent and crack sensitivity coefficient indicators guide on-site welding construction effectively — avoiding welding cold cracks and structural defects under low-temperature conditions and ensuring long-term stability of EH36 marine steel components in frigid marine environments.
Note: Pcm and Ceq are calculated from the actual heat analysis of each plate and are recorded in the MTC. Lower values mean better weldability and lower preheat requirement — please confirm preheat and interpass temperature with your welding procedure specification (WPS) for −40°C service.
04Mechanical Properties
All mechanical performance indicators of ASTM A131 EH36 strictly comply with ASTM international standards — higher yield strength than conventional marine steel, excellent ductility and core −40°C ultra-low temperature impact toughness.
Note: Energy 1 is the transverse impact test value and Energy 2 is the longitudinal impact test value at −40°C. Impact requirements for thickness ranges above 50mm follow the applicable classification society rules and order agreement — the actual test values of each plate are stated in its MTC.
05Application Fields
Benefiting from high structural strength, excellent −40°C low-temperature toughness and superior weldability, A131 EH36 shipbuilding steel plate is specially applicable for marine vessels and offshore facilities serving in extreme cold and harsh sea conditions.
Polar & Cold-region Shipbuilding
Ice-breaking ships, polar research vessels, cold-region cargo ship hull structures and deck parts.
Marine structural parts resisting extreme low temperature and wave impact, plus special ship functional components.
06Processing, Inspection & Service
Full-size standard plates in sufficient stock with strict marine classification society inspection — plus one-stop customized processing to meet marine engineering construction requirements.
1
Full-Size Stock
A131 EH36 plates 4–200mm in sufficient stock, delivered within 3–7 days.
2
Custom Processing
Custom cutting, bending and precision finishing per drawings, completed within 15–30 days.
3
Classification Inspection
Third-party marine classification society inspection supported for every order.
4
Marine Certification
Official MTC test reports and complete marine certification documents with delivery.
Full-range A131 EH36 shipbuilding plates, 4–200mm thickness from sufficient stock
Custom sizes, cutting, bending and precision finishing per client drawings
−40°C Charpy V-notch impact test performed with results recorded in the MTC
MTC, EN 10204 3.1 and third-party marine classification inspection supported
Get Your ASTM A131 EH36 Shipbuilding Steel Quotation Now
Send us your thickness, width & length (or part drawings), quantity, impact test and classification society requirements. We will reply with stock status, price, delivery time and complete marine certification documents within 24 hours.
BBN Steel has established a complete set of production and supplier management system processes to ensure the improvement of product quality and better service to users.
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