ASTM A612 is a high-strength, killed carbon-manganese-silicon steel plate specifically designed for medium- and low-temperature welded boilers and pressure vessels. It offers excellent yield strength, impact toughness, and weldability, making it an ideal material for high-pressure storage tanks.
The ASME SA612/ASTM A612 steel plates supplied by GNEE STEEL offer excellent wear resistance and high mechanical strength, making them an ideal choice for boilers, pressure vessels, and power plant applications. Manufactured to strict industry standards, these alloy steel plates feature exceptional durability and corrosion resistance, ensuring a long service life.
We offer steel plates in a variety of thicknesses and dimensions through our factory and wholesale channels to meet the needs of global exporters, distributors, and project contractors. With highly competitive pricing and reliable delivery capabilities, we can customize bulk orders to meet the specific needs of different industries.
ASTM A612 Chemical Composition and Technical Property is as below:
|
Standard |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
|
A612 |
0.25 |
0.13-0.55 |
0.92-1.62 |
0.025 |
0.025 |
0.25 |
0.25 |
0.08 |
|
tensile strength(MPa) |
yield strength(MPa) |
Elongation% |
|
570-725 |
≥345 |
≥16-22 |
Density Of Boiler Steel Plate
| Thickness | >5 mm |
|---|---|
| Density | 7.8 KG |
| Usage/Application | pressure vessel |
Boiler steel plates are high-strength modules designed with a density of 7.80 m/cm3.
Click here for more information on key specifications
GNEE Steel will provide high-quality steel plate services that meet the ASTM A612 specification based on your needs. We ensure the smooth operation of our ASTM A612 steel plate business. Please feel free to contact us with any requests; we will do our utmost to meet your needs.
What are Boiler Quality Plates?
Boiler steel plates (referred to as BQ steel plates) are special-purpose pressure-bearing steel plates suitable for high-temperature, medium- and low-temperature, high-pressure operating conditions. They are widely used in boilers, pressure vessels, and industrial pressure equipment, where stringent requirements are placed on material strength, operational safety, and long-term durability.
ASTM A612 is a standardized BQ steel plate specifically designed for pressure vessels. It complies with the American Society for Testing and Materials (ASTM) specifications for pressure vessel steel plates, and its equivalent standards within the same system include the ASTM A516 series. Its carbon-manganese-silicon killed steel composition and forced normalized delivery condition are specifically designed to meet the demanding operating conditions of thin-walled high-pressure storage tanks and cryogenic pressure equipment.
ASTM A612 Boiler Quality Plates
Boiler Quality Carbon Steel Plates Dimension
| Size (Length x width) | Thickness mm | Size (Length x width) | Thickness mm | Size (Length x width) | Thickness mm |
|---|---|---|---|---|---|
| 2055 x 12100 | 8 | ||||
| 2500 x 12000 | 3000 x 12000 | ||||
| 2055 x 12000 | 20 | 2500 x 12000 | 3000 x 6000 | 60 | |
| 3000 x 12000 | 3460 x 14000 | 3000 x 6000 | 65 | ||
| 3460 x 14000 | |||||
| 2055 x 12100 | 18 | 2055 x 12100 | 6 | 2055 x 8000 | 50 |
| 3000 x 12000 | 3000 x 12000 | ||||
| 2500 x 12000 | 2500 x 12000 | 3000 x 9000 | |||
| 3460 x 14000 | 3000 x 6000 | 55 | |||
| 4000 x 12000 | 2055 x 12100 | 12.5 | 3000 x 4000 | 90 | |
| 2500 x 12000 | 3460 x 14000 | ||||
| 2055 x 12000 | 25 | 3000 x 12000 | 3000 x 4000 | 100 | |
| 2500 x 12000 | |||||
| 3460 x 14000 | 4000 x 12000 | ||||
| 4000 x 12000 | |||||
| 4000 x 12000 | 2055 x 12100 | 10 | 3000 x 6000 | 70 | |
| 3000 x 12000 | 4000 x 12000 | 3000 x 6000 | 80 | ||
| 2055 x 12100 | 22 | 3000 x 12000 | 3000 x 6000 | 75 | |
| 2500 x 12000 | |||||
| 2500 x 12000 | 3460 x 14000 | ||||
| 3460 x 14000 | |||||
| 2500 x 12000 | 2055 x 12100 | 15 | |||
| 2500 x 10000 | 4000 x 12000 | ||||
| 3000 x 12000 | |||||
| 3000 x 10000 | 2500 x 12000 | ||||
| 2055 x 12000 | 40 | 3460 x 14000 | |||
| 3000 x 10000 | |||||
| 2055 x 12100 | 13 | ||||
| 4000 x 12000 | 3460 x 14000 | ||||
| 2500 x 12000 | 3000 x 12000 | ||||
| 2055 x 12000 | 30 | 2500 x 12000 | |||
| 4000 x 12000 | |||||
| 2055 x 12000 | 35 | ||||
| 2055 x 12100 | 16 | ||||
| 4000 x 12000 | |||||
| 2500 x 10000 | 3000 x 12000 | ||||
| 2055 x 8000 | 45 | 2500 x 12000 | |||
| 3000 x 9000 | 3460 x 14000 |
ASTM A612 Performs Best in Medium Thickness Pressure Vessel Plates
ASTM A612 was not developed for ultra-thick-walled pressure vessels; its advantages are primarily evident in the manufacture of pressure vessels made from medium- and thin-gauge plates. Typical application thicknesses range from 6 mm to 50 mm, and within this range, the steel offers a good balance of strength, toughness, and weldability.
Compared to standard pressure vessel steels, ASTM A612 has a higher yield strength (≥345 MPa). Therefore, under the same design pressure conditions, the equipment's weight can be reduced and material utilization improved by optimizing plate thickness. At the same time, medium- and thin-gauge plates are easier to control for deformation during roll forming, head fabrication, and welding, which helps improve manufacturing efficiency and weld quality.
For equipment such as chemical storage tanks, separators, heat exchangers, liquid ammonia storage tanks, and medium- and low-temperature pressure vessels, ASTM A612 provides good structural strength and welding reliability within the common thickness range of 20–40 mm, making it one of the most commonly selected materials for many medium-pressure pressure vessel projects.
ASTM A612 Performs Best in Medium Thickness Pressure Vessel Plates
Selecting the Right Steel Plate for Your Project
The choice between boiler-grade steel plates and structural steel plates depends entirely on your project requirements.Select boiler-grade steel plates if the following conditions apply:
• Your application involves high pressure or steam generation.
• You work in a thermal power plant, petrochemical facility, or refinery.
• Safety standards require compliance with pressure vessel codes.
Product Types of Other Types of Boiler Steel Plates
Steel for boilers and pressure vessels is a critical material in numerous industries that require high-strength, high-temperature-resistant, and corrosion-resistant solutions. GNEE Steel provides high-quality steel that meets strict industry standards, ensuring reliable performance, durability, and safety.
If you have a special order, please contact our team of experts and provide us with the specifications for your boiler steel plates. We are always ready to provide you with the best customized solutions.
Certification Requirements for Boiler Steel Plates
Quality testing and certification are critical to ensuring the safe use of boiler steel plates in boilers and pressure equipment. These tests are designed to verify that the material meets the required mechanical and structural standards prior to manufacturing.
Common tests and certifications include:
1. Impact Test: Verifies whether the steel plate can withstand sudden stress and low-temperature conditions without cracking.
2. Ultrasonic Testing (UT): Detects internal defects, such as inclusions or voids, that could compromise the strength of the plate.
3. Material Test Certificate (MTC): Confirms chemical composition, mechanical properties, and compliance with boiler plate standards; typically provided as part of MTC-certified boiler plates.
pressure vessel plates cutting service
| Machine name | Waterjet, Laser Cutting |
| Length | Up to 12000 mm |
| Thickness in mm | 3 to150 |
| Tolerance in mm | 2 |
| Platform Size | 2500 x 12000 mm |
EN 10204 3.1 Certificate of Material Composition
Before making a purchase, please consult GNEE, a reputable supplier of boiler steel plates that offers quality assurance, technical support, and timely delivery. Choosing the right material not only ensures safety and efficiency but also contributes to the overall success of your project.
Contact us now for a quote on ASTM A612 boiler platea
packaging and transportation
FAQ:
What is ASTM A612?
Answer: ASTM A612 is a carbon steel plate used for medium- and low-temperature pressure vessels. It is a carbon-manganese-silicon killed steel, not an alloy steel.
What is ASME SA612 / ASTM A612 steel used for?
It is primarily used for high-pressure boilers, pressure vessels, and heavy-duty industrial equipment requiring excellent strength and wear resistance.
Can ASME SA612 / ASTM A612 plates be customized in size and thickness?
Yes, as a professional steel plate supplier, we offer custom cutting, thickness options, and dimensions according to project requirements.
What certifications do your SA612 / A612 plates have?
All plates comply with ASME and ASTM standards and can be supplied with Mill Test Certificates (MTC) and third-party inspection reports.
Is the -40°C low-temperature impact test a mandatory inspection item?
Yes, the -40°C impact test is a core requirement of ASTM A612 and is also a key distinction from SA516 Gr70.
Do boiler plates require non-destructive testing?
Yes, boiler steel plates require non-destructive testing (NDT) to ensure safety and quality. Common testing methods include ultrasonic testing (UT) to detect internal defects and impact testing to verify toughness. These tests are designed to verify that the steel plates meet the requirements of boiler and pressure vessel standards prior to manufacturing.