SA-516 GR70 Steel Plate Material for Dished Tank Heads from Manufacturer in China
1. Definition of SA-516 GR70 Carbon Steel Plate Used for Dished Tank Heads from China Manufacturer
SA-516 GR70 Is a standard ASME Carbon Steel Grade, Designed For Welded Pressure Vessels Working at Lower and Moderate Temperatures. It is the Most Common and Reliable Material for Manufacturing Torispherical, Elliptical Dished Tank Heads Globally.
Being the Highest-Strength Grade in the SA-516 Series, GR70 Provides Better Pressure Resistance than GR60, While Retaining Excellent Ductility and Formability for Deep Drawing and Spinning of Dished Tank Heads.
2. Chemical Composition of SA-516 GR70 Steel Plate Materials Used for Carbon Steel Dished Heads.
(1). Carbon Composition≤0.27%: Low Carbon Content Guarantees Excellent Weldability and Effectively. Avoiding Cold Cracks During Nozzle Welding & Circumferential Seam Welding of Dised Tank Heads.
(2). Manganese Composition 0.85-1.2%: Improves Structural Strength and Lower Temperature Impact Toughness.
(3). Silicon Composition: 0.15-0.4%: Refine Grain Structure And Improves Materials Stabiliey During Forming.
(4). Phosphorus & Sulfur Content ≤0.025%: Strictly Controlled Impurities Reduce Brittleness During Cold Forming and Lower-Temperature Operation.
3. Key Mechanical Performance of AS-516 GR70 Carbon Steel Plate Materials for Dished Tank Heads:
(1). Tensile Strength: 485-620 Mpa;
Minimum Yield Strength: 260Mpa.
(2). Elongation ≥17%–21%: High Ductility Allows Seamless Spinning, Pressing, Joggling without Cracking Even for Large-Diameter Thick-Wall Heads.
(3). Very Good Charpy V-Notch Toughness: Retains Stable Impack Energy Down to -46°C, Eliminating Brittle Fracture Risk for Cryogenic Storage Tank Heads.
(4). Ensure Uniform Wall Thickness after Forming, with No Local Thinning or Hard Sports.
4. Unique Advantages of SA-516 GR70 Carbon Steel Plate for Dished Tank Head Production:
(1). Superior Forming Features for Dished Tank Heads Processing.
Suitable for All Dished Tank Heads Forming Processes, Including Cold Spinning, Hot Pressing and Joggling.
(2). Outstanding Welding Ability.
Matches Carbon Steel Cylinder Bodies Perfectly, Ensuring Reliable On-Site Welding and Assembly.
(3). Full Traceability and Certification Support.
All Materials are Traceable with Furnace Heat Numbers, and Supported by EN 10204 3.1 Test Certificates, ASME U-Stamp and PED Compliance.
(4). Wide Service Temperature Range.
Stable Performance for Low-Temperature Cryogenic Tanks and Medium-Temperature Industrial Pressure Vessels.
Henan Guojiang Precision Formed Head Co., Ltd. Manufacturing Dished Tank Heads with SA-516 GR70 Carbon Steel Plate Under Strict Pressure Vessel Quality Standards, With Precise Impurity Control and Mandatory Low-Temperature Impack Certification. 100% Traceability with PED,ASME, ISO Certified Qualification.
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