ASME SA516 Gr 55 (SA516GR55) Boiler Steel Plate

The ASME SA516 Gr 55 (SA516GR55) boiler steel plate is a high-quality carbon steel designed for pressure vessels and boilers operating in moderate and low-temperature environments, offering a balance of strength, toughness, and excellent weldability.

As a leading supplier of ASME SA 516 GR 55 in China, Gangsteel delivers premium plates compliant with ASME SA516/SA516M standards, ideal for industries such as oil and gas, petrochemical, and power generation. This boiler quality steel plate for oil and gas is perfect for applications requiring reliability in high-pressure settings, with optional HIC and NACE MR0175 compliance for sour gas environments. Gangsteel offers a vast inventory, rapid global delivery, and competitive pricing for pressure vessel steel plate for sour gas environments, ensuring top-tier solutions for your boiler and pressure vessel needs.

 

1. What is ASME SA516 Gr 55 Boiler Steel Plate?

 

ASME SA516 Gr 55 (SA516GR55) is a normalized carbon steel plate engineered for welded pressure vessels and boilers, providing a minimum yield strength of 205 MPa and excellent notch toughness. Equivalent to ASTM A 516 GR 55, it is designed for moderate and low-temperature service, making it suitable for storage tanks, heat exchangers, and smaller pressure vessels in industries like oil and gas. The ASME SA 516 GR 55 plate is valued for its cost-effectiveness and ductility, ideal for applications requiring easy forming and reliable performance. Gangsteel’s plates meet ASME, EN, JIS, and DIN standards, ensuring compatibility for global projects such as refineries, chemical plants, and power stations.

 

2. Chemical Composition of ASME SA516 Gr 55

 

The chemical composition of ASME SA516 Gr 55 is optimized for weldability and corrosion resistance:

Element

Thickness <12.5mm

12.5-50mm

50-100mm

100-200mm

>200mm

Carbon (C)

≤ 0.18

≤ 0.20

≤ 0.22

≤ 0.24

≤ 0.26

Silicon (Si)

0.13-0.45

0.13-0.45

0.13-0.45

0.13-0.45

0.13-0.45

Manganese (Mn)

0.55-1.30

0.55-1.30

0.55-1.30

0.55-1.30

0.55-1.30

Phosphorus (P)

≤ 0.035

≤ 0.035

≤ 0.035

≤ 0.035

≤ 0.035

Sulfur (S)

≤ 0.035

≤ 0.035

≤ 0.035

≤ 0.035

≤ 0.035

This ASME SA516 Gr 55 chemical composition features low carbon (≤ 0.26%) and stringent impurity controls, ensuring superior weldability and resistance to hydrogen-induced cracking (HIC), making it ideal for pressure vessel steel plate for sour gas environments.

 

3. Mechanical Properties of ASME SA516 Gr 55

 

The mechanical properties of SA516 Gr 55 ensure reliable performance in pressure vessel and boiler applications:

Property

Value

Yield Strength (Min MPa)

205

Tensile Strength (MPa)

380-515

Elongation (in 200mm, min %)

27

Elongation (in 50mm, min %)

31

Charpy Impact (at -46°C, optional)

≥ 27 J

These ASME SA516 Gr 55 mechanical properties provide excellent ductility and toughness, making it suitable for low-temperature, high-pressure applications with optional impact testing for enhanced safety.

 

4. Equivalent Grades of ASME SA516 Gr 55

 

ASME SA516 Gr 55 aligns with international standards for global compatibility in pressure vessel and boiler construction:

Standard

Equivalent Grade

ASTM

ASTM A 516 GR 55

EN 10028-2

P235GH

DIN 17155

HI

JIS G3115

SPV235

GB/T 1591

Q245R

BS 1501

161-360A/B

These ASME SA516 Gr 55 equivalent grades enable seamless substitution in global boiler designs, ensuring versatility for international projects.

 

5. ASME SA516 Gr 55 vs ASTM A36 Steel

 

Comparing ASME SA516 Gr 55 vs A36 steel, SA516 Gr 55 is specifically designed for pressure vessels with normalized condition for superior notch toughness and a tensile strength of 380-515 MPa, compared to A36’s 400-550 MPa. A36, a general-purpose structural steel, has a higher yield strength (250 MPa vs 205 MPa) but lacks the HIC/NACE compliance often required for boiler quality steel plate for petrochemical applications. SA516 Gr 55 is the preferred choice for high-pressure, corrosive environments due to its excellent formability and toughness.

 

6. ASME SA516 Gr 55 vs ASME SA516 Gr 70 and Gr 60

 

When comparing ASME SA516 Gr 55 vs Gr 70, Gr 55 has a lower yield strength (205 MPa vs 260 MPa) and tensile strength (380-515 MPa vs 485-620 MPa), offering better ductility for forming in less demanding applications. Against ASME SA 516 GR 60, Gr 55 has a slightly lower yield (205 MPa vs 220 MPa) and tensile strength (380-515 MPa vs 415-550 MPa), making it more cost-effective for smaller pressure vessels. All grades support HIC/NACE testing for sour gas environments, but Gr 55 is ideal for applications prioritizing formability.

 

7. Applications of ASME SA516 Gr 55 Boiler Steel Plate

 

The ASME SA 516 GR 55 is widely used in:

  • Oil and Gas: Storage tanks and pipelines, with HIC/NACE compliance for pressure vessel steel plate for sour gas environments.
  • Petrochemical: Heat exchangers and reactors handling corrosive chemicals.
  • Power Generation: Boilers and steam drums for moderate-pressure operations.
  • Chemical Industry: Vessels for processing less aggressive media.

Gangsteel’s expertise ensures compliance for these critical applications, delivering high-quality boiler quality steel plate for oil and gas.

 

8. Specification of ASME SA516 Gr 55 Boiler Steel Plate

 

Gangsteel offers customizable dimensions for SA516 Gr 55 to meet precise project requirements:

Dimension

Available Range

Thickness

6mm - 300mm

Width

1500mm - 4050mm

Length

3000mm - 18000mm

These specifications support tailored fabrication for boilers and pressure vessels, with tolerances adhering to ASME SA20 standards, ensuring precision for SA516GR55 boiler steel plate.

 

9. Available Sizes and Supply Conditions

 

Gangsteel maintains a robust inventory of ASME SA 516 GR 55, offering thicknesses from 6mm to 300mm, widths from 1500mm to 4050mm, and lengths up to 18000mm. Supply conditions include:

  • As-Rolled: Cost-effective for plates ≤ 40mm, suitable for standard boiler applications.
  • Normalized: For plates > 40mm, enhancing toughness and uniformity for high-pressure vessels.
  • HIC/NACE Tested: Compliant with NACE MR0175/ISO 15156 for sour gas environments, critical for oil and gas applications.
  • Custom Services: Plasma cutting, beveling, ultrasonic testing, and surface priming for corrosion resistance.

With over 10,000 tons in stock, Gangsteel ensures 7-15 day delivery to global markets, including Asia, the Middle East, Europe, and South America, with competitive ASME SA516 Gr 55 steel price per ton for bulk orders.

 

10. FAQ – Frequently Asked Questions about ASME SA516 Gr 55 Boiler Steel Plate

 

1. What is ASME SA516 Gr 55 used for?

ASME SA516 Gr 55 is used for boilers and pressure vessels in oil, gas, petrochemical, and power industries, ideal for boiler quality steel plate for oil and gas with HIC/NACE compliance for sour gas environments.

2. What are the mechanical properties of ASME SA516 Gr 55?

The ASME SA516 Gr 55 mechanical properties include a minimum yield strength of 205 MPa, tensile strength of 380-515 MPa, and elongation of 27% in 200mm, ensuring reliability in moderate-pressure applications.

3. What is the chemical composition of ASME SA516 Gr 55?

The ASME SA516 Gr 55 chemical composition features low carbon (≤ 0.26%) and stringent impurity controls for weldability and corrosion resistance.

4. What are the equivalent materials for ASME SA516 Gr 55?

Equivalents include ASTM A 516 GR 55, EN P235GH, JIS SPV235, and GB Q245R, per ASME SA516 Gr 55 equivalent grades, suitable for global boiler designs.

5. What is the difference between ASME SA516 Gr 55 and A36 steel?

SA516 Gr 55 is optimized for pressure vessels with superior toughness and HIC resistance, while A36 is for general structural use with higher yield strength, making ASME SA516 Gr 55 vs A36 steel preferable for high-pressure, corrosive environments.

6. What is the difference between ASME SA516 Gr 55, Gr 60, and Gr 70?

Compared to ASME SA 516 GR 60, Gr 55 has lower yield (205 MPa vs 220 MPa) and tensile strength (380-515 MPa vs 415-550 MPa), offering better formability. Against ASME SA 516 GR 70, Gr 55 has lower strength (205 MPa vs 260 MPa), ideal for less demanding pressure vessels.

7. Where can I buy ASME SA516 Gr 55 plates in China?

Gangsteel, a leading ASME SA516 Gr 55 supplier China, offers stock-ready SA516GR55 boiler steel plate with HIC/NACE options for immediate delivery to global markets.

8. What is the price of ASME SA516 Gr 55 steel per ton?

The ASME SA516 Gr 55 steel price per ton varies based on quantity and specifications; contact Gangsteel for competitive quotes and bulk discounts tailored to your project needs.

9. What supply conditions are available for ASME SA516 Gr 55 plates?

Available in as-rolled, normalized, or HIC/NACE-tested conditions, with customization options like cutting, beveling, and testing to meet specific project requirements for pressure vessel steel plate for oil refineries.

 

11. Why Buy ASME SA516 Gr 55 from GANGSTEEL?

 

Gangsteel is a trusted ASME SA516 Gr 55 supplier China, offering an extensive inventory of SA516GR55 boiler steel plate with rapid 7-15 day delivery and MTC EN 10204 3.1 certification. We provide value-added services such as plasma cutting, beveling, ultrasonic testing, and surface priming to ensure compliance with ASME, EN, JIS, and DIN standards.

 

 Explore related grades: ASME SA 516 GR 70, ASME SA 516 GR 60, ASTM A 516 GR 70, ASTM A 516 GR 60, ASTM A515, and EN 10028-2. Choose Gangsteel for your boiler quality steel plate for petrochemical applications needs and experience unmatched quality, reliability, and service.

Keywords: ASME SA516 Gr 55, boiler steel plate, pressure vessel steel

 

Other Products