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Golden Steel Material is a premier ISO-certified stockist based in Al Jubail. We supply high-performance pipes, fittings, valves, and flanges to the Oil & Gas and Industrial sectors across Saudi Arabia and the GCC.

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+966 54 662 1439
Al Jubail 35526, Saudi Arabia

SA 516 GR.70 PLATES

Material Grade: ASME SA 516 Grade 70 / ASTM A516

Material Type: High-Strength Pressure Vessel Quality (PVQ)

Tensile Strength: 485 - 620 MPa (70-90 ksi)

Service Suitability: High-Pressure / Moderate & Lower Temp Service

Key Property: Maximum Strength with Superior Notch Toughness

Industrial Standard: Global Choice for Boiler & Vessel Shells

Processing Status: Fully Killed & Fine-Grain Normalized Stock

Primary Industries: Refineries, Petrochemicals, & Nuclear Power

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ASME SA 516 Grade 70 Plates represent the highest strength tier within the ASME SA 516 family, serving as the global benchmark for Pressure Vessel Quality (PVQ) carbon steel. Engineered for high-pressure applications in moderate to lower temperature services, Grade 70 is characterized by its superior tensile strength of 485–620 MPa (70–90 ksi). These plates are produced using fine-grain practice and are fully killed to ensure a highly stable internal microstructure, providing the critical notch toughness required to withstand extreme mechanical stress without the risk of brittle failure.

The technical dominance of SA 516 Grade 70 in the energy sector is due to its optimal balance of high load-bearing capacity and excellent weldability. Its robust chemical composition allows for the fabrication of high-capacity boilers, spherical storage tanks, and heavy-wall heat exchangers used in oil refineries and petrochemical plants. Because of its popularity, it is the most widely stocked PVQ grade globally, often supplied in a normalized condition to further refine grain structure and enhance impact properties. By selecting SA 516 Grade 70, engineers can achieve significant structural efficiency and safety, meeting the most rigorous international standards for critical containment infrastructure.

SA 516 GR.70 PLATES Features

» Maximum Tensile Strength: Offers the highest strength in the SA 516 series (485–620 MPa), allowing for high-pressure containment and reduced material thickness in vessel design.
» Superior Notch Toughness: Engineered with a fine-grain structure to provide exceptional impact resistance, ensuring safety in moderate to lower temperature service environments.
» Fully Killed Carbon Steel: Deoxidized during production to ensure a clean, uniform internal structure with minimal impurities, significantly reducing the risk of laminar tearing.
» Proven Weldability: Despite its high strength, the chemistry is optimized for high-integrity welding, making it the preferred choice for heavy-wall welded shells and dished ends.
» Pressure Vessel Quality (PVQ): Rigorously tested to comply with the ASME Boiler and Pressure Vessel Code, guaranteeing reliability in critical containment systems.
» Normalized for Integrity: Plates exceeding 40mm are typically supplied in a normalized condition to refine the grain structure and maximize toughness across the entire surface.
» Sour Service Compatibility: Can be specifically tested and certified to resist Hydrogen Induced Cracking (HIC) and Sulfide Stress Corrosion Cracking (SSCC) for oil and gas applications.
» Global Industrial Standard: The most widely specified grade for boilers and heat exchangers, ensuring easy global sourcing and comprehensive mill documentation.

SA 516 GR.70 PLATES Specification

Standards

ASME: SA 516 Grade 70
ASTM: A 516 Grade 70
Common Name: PVQ Plate
Metallurgy: Fully Killed Fine Grain

Chemistry

Carbon (C): 0.27% - 0.31% Max
Manganese (Mn): 0.85% - 1.20%
Silicon (Si): 0.15% - 0.40%
Phosphorus (P): 0.035% Max

Strength

Tensile Strength: 485 - 620 MPa
Yield Strength: 260 MPa (Min)
Elongation (8in): 17% (Min)
Elongation (2in): 21% (Min)

Processing

Heat Treatment: Normalized Stock
Testing: Charpy V-Notch Impact
Welding: Superior PVQ Integrity
Suitability: Sour Service (NACE)

Dimensions

Thickness: 6 mm to 200 mm
Width: Up to 3500 mm
Length: Up to 15000 mm
Custom: Profile & Circle Cutting

Quality

MTC: EN 10204 3.1 / 3.2
Ultrasonic: UT per SA 578 Level B
Testing: HIC & SSCC (Optional)
Origin: Tier-1 Mill Traceability

SA 516 GR.70 PLATES Detailed Specifications

Property	Specification
Grade	ASME SA 516 GR.70 Boiler and Pressure Vessel Steel Plates
Width	1500mm-3000mm
Thickness	3 - 200 mm/ dimensions up to 4.000 mm
Length	3000mm-11000mm.
Production	Hot-Rolled (HR)
Heat Treatment	Rolled/Normalised/N+T/QT

SA 516 GR.70 PLATES Chemical Composition

C	Si	Mn	P	S	Al	Cr	Cu	Ni	Mo	Nb	Ti	V
0.18	0.4	0.95/1.50	0.015	0.008	0.02 (Min)	0.3	0.3	0.3	0.08	0.01	0.03	0.02

SA 516 GR.70 PLATES Mechanical Properties

Tensile strength (ksi)	Tensile strength (MPa)	Yield strength (ksi)	Yield strength (MPa)	Elongation in 200mm (min)(%)	Elongation in 50mm (min) (%)
65-85	450-585	35	240	19	23

SA 516 GR.70 PLATES Equivalent Grades

British Standard	European Norm	ASTM/ASME	DIN
BS1501-224-490A/B	EN10028 P355GH	A/SA516 - Grade 70	-

Industrial Locations & Keywords

Industrial Locations & Keywords
Riyadh Industrial Cities (1st, 2nd, 3rd & Sudair)
Jeddah Industrial Cities (1st, 2nd & 3rd)
Dammam Industrial Areas (1st, 2nd & 3rd)
Jubail Industrial City
Yanbu Industrial City
Rabigh Industrial City
Al Khobar Industrial Area
Al Ahsa Industrial City
Madinah Industrial City
Makkah Industrial City
Taif Industrial City
Tabuk Industrial City
Jazan Industrial City
Industrial supplier in Saudi Arabia
Pipe fittings supplier in Jubail / Dammam / Riyadh
Flange and valve supplier Saudi Arabia
Fast delivery industrial materials KSA