Heavy Plates

Authorized specs for Bridge, Vessel, and Marine engineering.

Technical Matrix

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Category Grades Thickness (mm) Width (mm) Key Standards
Bridge Engineering Q345qD/E, Q370qD/E, Q420qD/E 8\u201320 1500\u2013300 GB/T 714, EN 10025
Pressure Vessel & Boiler SA516 Gr.70, P355GH, 16MnDR 8\u201350 1500\u2013100 ASME, ASTM, EN 10028
Shipbuilding & Offshore Grade A/B/D/E, AH36, DH36, EQ70 8\u201300 1500\u2013200 ABS, DNV, LR, BV, KR

Common International Grades

International standard equivalents available for export: ASTM, EN, JIS, and API specifications.

StandardGradeTypical ApplicationThickness Range
ASTM A36A36General structural steel6–150 mm
ASTM A572Gr.50 / Gr.60High-strength structural6–100 mm
ASTM A516Gr.60 / Gr.65 / Gr.70Pressure vessels, boilers6–150 mm
ASTM A537Cl.1 / Cl.2Heat-treated pressure vessel6–100 mm
EN 10025-2S235JR / S275JR / S355J2 / S355K2Structural, general engineering6–150 mm
EN 10025-3S355N/NL / S420N/NL / S460N/NLNormalized fine-grain structural8–120 mm
EN 10025-4S355M/ML / S420M/ML / S460M/MLThermomechanical rolled (TMCP)8–100 mm
EN 10025-6S460QL / S690QL / S890QLQuenched, tempered high strength6–80 mm
EN 10028-2P265GH / P355GH / 16Mo3Pressure vessel, elevated temp6–150 mm
API 5LX52 / X60 / X65 / X70Line pipe, energy transport8–50 mm
JIS G3106SM400A / SM490A / SM520BWelded structures6–100 mm

Industrial Application

Shanghai-Suzhou Bridge steel structure

Bridge Infrastructure

Supplying the high-fatigue resistant plates for trans-regional links.

Deepwater offshore oil platform steel construction

Energy Storage

High-performance plates for energy storage and petrochemical applications.