ASTM A514 GRADE S

ASTM A514 Grade S Steel Plates – High‑Strength Quenched & Tempered Alloy Steel of Premium Quality

Conquest Steel & Alloys is a premier distributor of ASTM A514 Grade S Steel Plates, offering quenched and tempered alloy steel plates with superior strength, toughness, and weldability. Manufactured to the ASTM A514 specification, Grade S provides a minimum yield strength of 690 MPa (100 ksi), which is well suited for heavy structural, transportation, and industrial applications that require the best strength-to-weight ratio.

ASTM A514 Grade S is superior in cases of high-impact and dynamic loading, providing superior fatigue resistance and formability. Typical uses are in crane booms, bridge construction, mining machinery, pressure vessels, and military armor. Its greater weldability and machinability make it an excellent material for fabrication-intensive applications.

Key Strengths of A514 Grade S:

  • Minimum yield strength of 100 ksi
  • Superb low-temperature toughness and fatigue resistance
  • Superior weldability and formability
  • Material savings by thinner plate thickness
  • Full certification with MTCs and third-party testing support

Available in thicknesses from 6 mm to 100 mm, widths up to 3000 mm, and lengths up to 12 000 mm, we ensure prompt deliveries and tailored support for every project requirement.

ASTM A514 GRADE S Specification:
Grade : ASTM A514 Grade S
Yield Strength : Min. 690 MPa / 100 ksi
Tensile Strength : 760 – 895 MPa
Thickness : 6 mm to 100 mm
Width : Up to 3000 mm
Length : Up to 12 000 mm
Heat Treatment : Quenched and Tempered
Weldability : Excellent
Certification : ASTM A514 with MTCs
Applications : Cranes, bridges, offshore, mining, defense
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