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Carbon Steel Plate for Storage Tank Fabrication ASTM A516 Grade 70 6mm-50mm

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Product Spotlights

ASTM A516 Grade 70 carbon steel plate for storage tank fabrication, 6-50mm thickness. Offers excellent low-temperature toughness, high weldability, and consistent mechanical properties. Customizable sizes, ISO9001 certified, with mill test certificates. Supplied by Hemaokang Steel – experienced global exporter from Qingdao Port.
Negotiable MOQ: 1 Ton (Price negotiable depending on order volume and customization)
Key Specifications
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Surface Treatment:
Other, Hot Rolled, pickled & oiled optional
Standard:
Other, ASTM A516 / ASME SA516
Application:
Other, Storage tank
Payment & Shipping
Payment Methods:
Port of Shipment:
Qingdao Port
Delivery Detail:
7 days
Surface Treatment Other, Hot Rolled, pickled & oiled optional
Standard Other, ASTM A516 / ASME SA516
Application Other, Storage tank
Material ASTM A516 Grade 70 Carbon Steel
Thickness 6mm - 50mm
Width 1500mm - 3000mm (customizable)
Length 6000mm - 12000mm (customizable)
Delivery Condition As Rolled, Normalized, or Quenched & Tempered

Hemaokang Steel (Shandong) Co., Ltd. is a trusted supplier of high-quality carbon steel plates for storage tank fabrication, serving global markets including North America, South America, Europe, and Asia. Our ASTM A516 Grade 70 plate in thicknesses from 6mm to 50mm is specifically engineered to meet the rigorous demands of welded pressure vessels and storage tanks. With ISO9001 certification and annual export value exceeding US$50 million, we ensure consistent quality, reliable supply, and competitive pricing.

This grade offers excellent toughness at low temperatures, superior weldability, and high strength, making it the preferred choice for fabricators worldwide. Whether you need standard sizes or custom dimensions, our flexible production capabilities and extensive inventory support your project timelines.

Key Features & Benefits

  • Excellent Toughness: ASTM A516 Grade 70 provides outstanding impact resistance at sub-zero temperatures, ensuring safety in cryogenic storage applications.
  • Superior Weldability: Low carbon content and controlled chemistry enable easy welding without preheating for most thicknesses, reducing fabrication time.
  • High Strength: Minimum yield strength of 260 MPa (38 ksi) and tensile strength of 485-620 MPa (70-90 ksi) support heavy-duty tank structures.
  • Dimensional Accuracy: Advanced leveling and cutting equipment ensure flatness tolerance within ASTM standards, minimizing scrap.
  • Customizable Sizes: Available in widths up to 3000mm and lengths up to 12000mm, with shearing or plasma cutting to your exact specifications.
  • Traceability: Each plate is marked with heat number and mill test certificate (MTC) for full material traceability.

Technical Specifications (Typical Values)

Parameter Value
Standard ASTM A516 / ASME SA516 Grade 70
Thickness Range 6mm – 50mm (0.236″ – 1.968″)
Width 1500mm – 3000mm (custom)
Length 6000mm – 12000mm (custom)
Carbon Content ≤ 0.31%
Yield Strength (min) 260 MPa (38 ksi)
Tensile Strength 485 – 620 MPa (70 – 90 ksi)
Elongation (min) 17% in 2″ (50mm)
Heat Treatment As Rolled, Normalized (optional)

Our plates undergo rigorous testing including ultrasonic inspection, mechanical property verification, and dimensional checks to ensure compliance with ASTM A516 requirements. The fine grain practice and controlled sulfur content enhance through-thickness ductility, reducing the risk of lamellar tearing in welded joints.

For storage tank fabrication, we recommend normalized plates for thicknesses above 25mm to achieve uniform grain structure and improved low-temperature toughness. Our team can provide technical guidance on heat treatment and welding procedures based on your specific design code (e.g., ASME Section VIII, API 650).

Why Choose Hemaokang Steel?

  • Reliable Quality Assurance: ISO9001-certified production processes with third-party inspection support (e.g., SGS, BV) upon request.
  • Global Logistics: Conveniently located in Liaocheng, Shandong, near Qingdao Port, ensuring fast and cost-effective shipping to all major markets.
  • Flexible Order Quantities: From small custom batches to large project volumes, we accommodate your needs.
  • Professional Technical Support: Our experienced engineers assist with material selection, fabrication advice, and documentation.

Since our establishment, Hemaokang Steel has achieved an annual export value of US$50 million – US$100 million, serving over 50 countries across North America, South America, Europe, Asia, Africa, and Oceania. Our team of 51-100 dedicated professionals ensures that every order receives personalized attention from inquiry to delivery.

We understand that storage tank fabrication demands materials with consistent mechanical properties and strict dimensional tolerances. That’s why we maintain a large inventory of ASTM A516 Grade 70 plates in various thicknesses, ready for immediate processing and shipment. Our plasma cutting, shearing, and edge preparation services help you save time and reduce waste on your shop floor.

Ready to order? Contact us today for a competitive quote and detailed mill test certificates. We look forward to supporting your next storage tank project with high-quality steel plates that meet your exact specifications.


Frequently Asked Questions (FAQ)

Q1: What is the difference between ASTM A516 Grade 70 and other carbon steel grades?
A: ASTM A516 Grade 70 is specifically designed for pressure vessel and storage tank applications. It offers better low-temperature toughness and weldability compared to common structural grades like A36 or A572. Its controlled chemistry ensures reliable performance in welded fabrications.

Q2: Can you supply plates thicker than 50mm for storage tank applications?
A: Yes, we can supply thicker plates up to 100mm or more on request. However, for thicknesses above 50mm, we recommend normalized or quenched and tempered conditions to maintain mechanical properties. Please contact our sales team with your specific requirements.

Q3: Do you provide mill test certificates (MTC) with each shipment?
A: Absolutely. Every plate we ship is accompanied by a mill test certificate showing heat number, chemical composition, and mechanical test results. Third-party inspection by SGS, BV, or other agencies is also available upon request.

Q4: What are the typical lead times for ASTM A516 Grade 70 plates?
A: For standard sizes (6-50mm thickness, 2000-2500mm width), lead time is typically 7-15 days after order confirmation. For custom sizes or special heat treatment, lead time may be 15-25 days. We also maintain a stock of popular dimensions for immediate shipment.

Q5: Can you cut the plates to specific dimensions for tank fabrication?
A: Yes, we offer cutting services including plasma cutting, shearing, and laser cutting (for thinner plates). We can deliver plates with square edges, beveled edges for welding, or custom shapes as per your drawings.

Q6: Is your company ISO certified?
A: Yes, Hemaokang Steel is ISO9001 certified, ensuring our quality management system meets international standards. We also comply with ASTM and ASME requirements for pressure vessel steel plates.

Q7: What payment terms do you accept?
A: We accept T/T (30% deposit, 70% before shipment) and L/C at sight. For long-term partnerships, other terms may be negotiable. Please discuss with our sales team.

Q8: How do you package the plates for export?
A: Standard export packing includes steel strapping, plastic or waterproof paper wrapping, and edge protection. For sea freight, plates are bundled on skids or in containers to prevent damage during transit. We can also provide custom packaging as per your requirements.

Product Tags: ASTM A516 Grade 70 carbon steel plate for storage tank , Pressure vessel steel plate 6mm to 50mm thickness , Carbon steel plate for tank fabrication, high quality

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Gold Verified Supplier
1Yr
Verified Business License
Year Established
2025
Annual Export Value
US$50 Million - US$100 Million
Total Employees
51 - 100 People
Product Certifications
ISO9001