Q550D Q550E low alloy steel sheet is a D-grade quenched and tempered low alloy high strength steel sheet with a yield strength of 550MPa. Its production complies with GB/T related national standards.

Q550D Q550E high strength steel plate performance characteristics‌

High strength‌: The yield strength reaches 550MPa, and it can still maintain high impact toughness at low temperatures.
‌Wear resistance and fatigue resistance‌: Q550D Q550E high tensile steel sheet contains alloy elements, which can improve wear resistance and fatigue resistance.

‌Corrosion resistance‌: The addition of alloy elements can improve the corrosion resistance of Q550D Q550E.

Q550D Q550E high tensile alloy steel engineering application‌: It is widely used in bridges, buildings, vehicles, ships and other fields, and can improve the bearing capacity and stability of the structure.

Q550D High Tensil Low Alloy Steel Plates (HSLA) Chemical Composition

Q550D Alloy Structural Steel Plate Mechanical Property

►Mechnical property for GB/T Q550E high tensile alloy steel plate

►Chemical composition for GB/T Q550E alloy steel plate

Gnee Steel Co.,Ltd (GNEE) is the affiliated company for ANGANG GROUP who are one large state-owned iron and steel group located in Henan, China.

GNEE are specialized in manufacturing and supplying large quantities Seamless steel pipes and Shipping-building plates, We are provide high quality steel of Steels and Coils, plates, tool steels,steel pipes and other steel products with guaranteed Grade-A quality, excellent performance and competitive prices.

All of steel products from GNEE have been exported to overseas distributors, warehouses, and factories in USA, Mid-east, Europe, Bangladesh, Sri Lanka, Egypt, Saudi Arabia, and other countries and regions. Therefore, GNEE has got a great market share in the international market.

GNEE have a professional technician team, which not only have decades working experience in steel industry, but also have a deep and clear insight of the technology condition and the manufacturing state in the Chinese main steel mills.

With the high efficient supervision system and professional experience, we offer our efficient and considerate service to clients around the world. We hope sincerely to become your Chinese supplier and partner.

Our company will remain honest and pragmatic as always to safeguard, strengthen and carry forward our National Brand, provide quality commodities and top-class services to domestic and overseas clients. We sincerely wish to develop long-term win-win cooperation with domestic and overseas clients.