A516GR70 / Q345R Pressure Vessel Steel Plates | ASME & GB Standard | For Boilers & Storage Tanks
Professional supplier of A516GR70 and Q345R pressure vessel steel plates. ASME SA516 Grade 70 and GB Q345R available in normalized condition. Competitive prices for India, Middle East, Vietnam. Get a quote today.
Technical Comparison: A516GR70 (ASME) vs Q345R (GB)
| Property | A516GR70 (ASME SA516) | Q345R (GB/T 713) | Notes |
|---|---|---|---|
| Standard | ASTM A516 / ASME SA516 | GB/T 713-2014 | Both widely accepted |
| Tensile Strength | 485-620 MPa | 510-640 MPa | Q345R offers higher strength range |
| Yield Strength | ≥260 MPa | ≥345 MPa | Q345R yield strength significantly higher |
| Elongation | ≥17% (in 50mm) | ≥21% | Q345R better ductility |
| Impact Test | -40°C, ≥34J (if specified) | -20°C, ≥34J (standard) | A516GR70 better for low-temp |
| Carbon Content | ≤0.27-0.31% (by thickness) | ≤0.20% | Q345R lower carbon = better weldability |
| Manganese | 0.79-1.30% | 1.20-1.60% | - |
| Phosphorus | ≤0.035% | ≤0.025% | Q345R stricter P control |
| Sulfur | ≤0.035% | ≤0.015% | Q345R stricter S control |
| Delivery Condition | Hot rolled (≤40mm) / Normalized (>40mm) | Hot rolled / Controlled rolled / Normalized | Normalized available for both |
| Thickness Range | 6mm - 200mm+ | 6mm - 200mm+ | Both available in heavy gauges |
| Typical Applications | Pressure vessels, boilers, storage tanks, -46°C service | Pressure vessels, boilers, storage tanks, 0°C service | Choose based on design temp |
Detailed description
Why Choose Our A516GR70 / Q345R Plates?
Complete Certification Package
Full material traceability with Mill Test Certificates (MTC)
Third-party inspection available: BV, SGS, TÜV (at buyer's cost)
Can meet ASME BPVC Section II requirements for A516GR70
Flexible Heat Treatment Options
As-rolled for standard applications
Normalized for improved grain structure and impact properties (required for A516GR70 >40mm)
Stress relieved upon request
Non-Destructive Testing
Ultrasonic testing per SA578 / GB/T 2970
Available in Grade I, II, III (S1/E1/E2 standards)
Thickness direction performance (Z15, Z25, Z35) available
Fabrication Services
Cutting (plasma, laser, flame)
Drilling, bending, welding
Custom sizes to reduce your scrap
who choose us?
Flexible Supply – From Trial Orders to Bulk Shipments
ASME & GB dual-standard capability
Full MTC traceability with every order
Normalized + UT for critical applications
Market expertise: India, Pakistan, Middle East, Vietnam
Flexible volumes: 5 tons to 500+ tons
Quick response on WhatsApp/Zalo
one-stop solution
professional team
high quality
our Partners
We trusted by
User Evaluation
Procurement Manager
Lahore, Pakistan
Site Engineer / Fabricator
Karachi, Pakistan
Boss
Lahore Pakistan
FAQ
01.Can Q345R replace A516GR70 in my design?
02.Do you provide normalized A516GR70?
03.What certificates do you provide?
04.What is your MOQ?
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