S690Q VS A572 Grade 50 steel plate

S690Q is a high-strength steel with a minimum yield strength of 690MPa, while A572 Grade 50 has a minimum yield strength of 50ksi

(approximately 345MPa). Therefore, S690Q is significantly stronger, with S690Q being a quenched and tempered steel designed for heavy-duty applications and A572 Grade 50 being a common high-strength, low-alloy (HSLA) steel for general structural purposes.

EN 10025-2 S690Q sheet and plates are high-strength structural steel with the composition of carbon, manganese, chromium, and molybdenum, providing excellent weldability and toughness. These plates have superior resistance to impact, fatigue, and wear. The key benefits are better durability, light construction, and less material consumption, which makes them ideal for construction, bridges, cranes, and industrial machinery under heavy loads.

EN 10025-2 S690Q Sheet and Plates Chemical Composition

EN 10025-2 S690Q Sheet and Plates Mechanical Properties

EN 10025-2 S690Q Sheet and Plates EQUIVALENT GRADE

ASTM A572 Gr 50 is part of the astm a572 specification for HSLA columbium-vanadium structural steel, offering a minimum yield strength of 50 ksi (345 MPa). It's stronger than standard carbons like astm a36 a572, making it ideal for riveted, bolted, or welded structures. The steel's alloying elements enhance its resistance to atmospheric corrosion and fatigue, suitable for a572 gr 50 plate in bridges and high-rises. GNEE steel's a572 steel plate is dual-certified with a572 gr 50 equivalent material like A709 Gr 50 for versatility.

ASTM A572 Gr 50 Chemical Composition

The astm a572 gr 50 chemical composition is optimized for strength and weldability:

ASTM A572 Gr 50 Mechanical Properties

The astm a572 gr 50 mechanical properties provide a strong foundation for structural use:

Equivalent Grades of ASTM A572 Gr 50

The a572 gr 50 equivalent material varies by region but maintains similar properties:

Typical Applications Of ASTM A572 Gr 50

Building Structures: Columns, beams, trusses, and framing for high-rise buildings, commercial complexes, industrial plants, and prefabricated structures (North America, South America, and ASTM-adopting markets).

Infrastructure: Highway bridges (short-to-medium span), guardrails, sign supports, and railway components.

Heavy-Duty Fabrication: Machine bases, brackets, storage racks, and trailer frames.

Pipe & Tubing: Structural pipes, pressure pipes, and welded tubing for construction and industrial systems.

Agricultural & Construction Machinery: Light-to-medium duty equipment components (e.g., tractor frames, loader buckets) where high strength-to-cost ratio is key.

Why Choose GNEE Steel for S690Q or A572 Grade 50 Steel Plates?

GNEE Steel is a trusted supplier of high-quality S690Q ultra-high-strength steel plates and reliable A572 Grade 50 HSLA steel plates, fully compliant with EN 10025-6 and ASTM A572/A572M standards.

Our supply advantages include:

Dual Standard Compliance: Certifications for global standards (EN, ASTM, GB, ASME) to meet diverse project requirements across regions.

Customization Capabilities:

S690Q: Thickness 6mm-200mm, width 1500mm-4800mm, with precision cutting, drilling, and anti-corrosion surface treatments (hot-dip galvanizing, painting).

A572 Grade 50: Thickness 3mm-150mm, width 1200mm-4800mm, available in standard or custom lengths for fabrication flexibility.

Global Logistics & Documentation: Exported to Ecuador, Peru, UAE, Saudi Arabia, Nigeria, USA, Australia, Singapore, and Vietnam, with complete documentation (certificate of origin, mill test report, compliance certificates) and on-time delivery.

Technical Expertise: Our engineering team provides material selection guidance, welding parameters, and application-specific solutions to optimize project performance and cost-efficiency.

Request A Quote

For inquiries about S690Q high-strength structural steel, A572 Grade 50 low-alloy steel plates, or custom steel solutions, contact GNEE Steel today:

Phone: +86 15824687445

Email: alloy@gneesteelgroup.com

FAQ

What is the difference between S690Q and S690QL?

S690Q: Minimum impact toughness tested at -20°C (30J average). → Typical Use: Cranes in temperate climates, quarry equipment. S690QL: Certified for -40°C and below (≥40J impact toughness). → Critical Use: Arctic pipelines, offshore platforms, mining vehicles in Siberia.

What grade is S690QL material?

S690QL is a high strength quenched and tempered steel grade that complies to steel specification EN 10025. The designation S690QL refers to a minimum yield strength of 690 MPa.

What is S690 grade steel?

S690 high yield & fine grain steel plate is a high strength, quenched and tempered fine-grain structural steel. Structural steel S690 is used in structures that must withstand very heavy loads. This grade is meant for structures where weight savings is important.

What is the equivalent of S690 steel?

Approximate equivalents
ASTM A514, EN 10149-2 Grade S700MC, AS/NZS 3579 Grade 700, AM 700, Bisalloy 80.

What is the price of S690QL material?

S690QL High Strength Steel Plates, Thickness: 5mm to 150mm at 5,600-13,500 CNY per tonne (approx. 5.6-13.5 CNY per kilogram)/440-900 USD per tonne (approx. 0.44-0.90 USD per kilogram)

What is the hardness of S690 QL steel?

S690QL steel stockholders and suppliers. S690QL is a quenched and tempered high strength steel supplied in full plates or cut pieces with delivery to the whole of the UK. With its high yield of minimum 690MPa it offers better strength than standard carbon steel grades.

What is the effective use of high strength S690 steel in construction?

The high strength S690 steels have an excellent strength-to-self-weight ratio, and they are highly efficient to be used in heavily loaded structures. Typical applications include piles and columns in buildings and supporting members in bridges.

What is the difference between S890QL and S690QL?

S690QL, S890QL, and S960QL are all water quenched and tempered steels that comply with the EN10025:6:2004 specification. These ultra high strength steels have a minimum yield strength of 690 MPa, 890 MPa, and 960 Mpa respectively, making them ideal for use in the haulage sector.

What is the difference between S700MC and S690ql?

The S700MC Steel is basically a structural steel plate developed especially for applications requiring high yield strength. They are used for several load bearing applications. The S690ql is a low alloy structural steel which is high in strength and comes with good weldability.

What is the yield strength of s690 steel?

690 MPa.

Yield strength of 690 MPa. Used in structures bearing extremely heavy loads, such as bridges, offshore drilling rigs and buildings, as well as in heavy construction equipment and cranes.

What is the equivalent of ASTM A572 Gr 50 in EN standards?

EN S355JR, with similar astm a572 gr 50 yield strength.

What is ASTM A572 Gr 50 equivalent in JIS?

JIS SM490A, matching a572 gr 50 mechanical properties.

What is the Chinese equivalent of ASTM A572 Gr 50?

GB Q345B, often used as a572 gr 50 equivalent material.

What is the difference between A572 Gr.50 and A36 equivalent?

A572 Gr.50 has higher strength than A36.

Where can I buy ASTM A572 Gr.50 or equivalents in China?

GNEE steel, a top astm a572 gr 50 supplier.

What is the price of A572 Grade 50 equivalent steel per ton?

Contact GNEE steel for quotes on a572 steel properties.