Stainless Steel Welded Tube ASTM A312, A358, A778 JIS G3459

We offer a wide range of stainless steel pipes that meet international standards to ensure that they meet the needs of different industrial applications. Our pipes include:

  • ASTM A312 standard stainless steel pipe: seamless pipes designed for high temperature and general corrosive environments, suitable for petrochemical, chemical, food processing and other fields. This standard ensures the strength, corrosion resistance, and high-temperature resistance of the pipe to meet stringent industrial requirements.

  • ASTM A358 standard stainless steel welded pipe: welded pipes suitable for high-temperature service and general corrosive environments, especially suitable for piping systems that require extra strength and thickness. This standard pipe undergoes precision welding processes to adapt to a variety of complex application environments.

  • ASTM A778 standard stainless steel welded pipe: welded pipes designed for low-pressure corrosive environments, suitable for applications such as construction, food processing and sewage treatment. This standard ensures the corrosion resistance and service life of welded pipes to meet daily industrial needs.

  • JIS G3459 standard stainless steel pipe: Japanese industrial standards cover seamless and welded pipes for various industrial uses, including chemical, petroleum and food industries. This standard pipe has excellent corrosion resistance and reliable quality assurance.

ASTM A312, A358, A778 JIS G3459

Standard: ASTM A312, A358, A778 JIS G3459

Material/Steel Grade: TP304, TP304L, TP316L SUS304TP, etc.

Application: Industrial Pipes

Size: OD: 1/4″~40″WT: SCH5S~SCH80S

Finish: No.1(Hot Rolled), 2B(Cold Rolled), BA, 2BA, Mirror(No.8), etc.

Shapes: Round Welded Tube, Channel Welded Tube, Square Welded Tube, Hex Tube, U Tube, etc.

Services: Bending – Cutting – Grooving – Polishing – Threading

What are the Standards of ASTM A312, A358, A778 and JIS G3459?

ASTM A312:

  • Definition: This standard covers the specifications for seamless, welded, and highly cold-finished stainless steel pipes for high-temperature and general corrosive environments.

  • Application: Mainly used in industrial piping systems for conveying fluids and gases, such as chemical, petrochemical, food processing, nuclear power, and other industries.

  • Material: Usually covers austenitic stainless steel, such as 304, 316, etc.

ASTM A358:

  • Definition: This standard applies to stainless steel arc-welded pipes (usually double-sided welded steel pipes) for high-temperature service or general corrosive environments.

  • Application: Similar to A312, but more focused on the use of thick-walled pipes, often used in piping systems that require additional strength or thickness.

  • Material: Usually also austenitic stainless steel.

ASTM A778:

  • Definition: This standard specifies the requirements for welded stainless steel pipes for low-pressure corrosive environments. Unlike A312, it does not require full heat treatment.

  • Application: Widely used in environments that require corrosion resistance but do not need to withstand high pressure or high temperature, such as construction, food processing, sewage treatment, etc.

  • Material: Covers a variety of austenitic stainless steels.

JIS G3459:

  • Definition: This is a Japanese industrial standard that mainly deals with the manufacturing requirements of stainless steel pipes, especially for industrial use in general corrosion-resistant environments.

  • Application: This standard pipe is widely used in chemical, petroleum, food industry, and other similar environments.

  • Material: Similar to ASTM standards, it is usually austenitic stainless steel, such as 304, 316, etc.

Industrial Applications

Stainless steel welded pipe is corrosion-resistant and this type of material is extremely durable in harsh conditions. This type of pipe is popular in industrial applications in the following industries:

  • Chemical
  • Food and beverage
  • Marine
  • Mining
  • Oil and gas
  • Pharmaceutical
  • Petrochemical
  • Power generation
  • Renewable energy

The Stainless Steel welded pipe can be cheaper to manufacture than the seamless pipe for your applications that require corrosion resistance. As an ASTM A312 & A358 welded pipe distributor, we will help you get the materials you need to complete your project on time and on budget.

ASTM A312 vs ASTM A358

What is ASTM A312?

ASTM A312 TP 304 / 304L stainless steel pipe is the most widely used and commonly used stainless steel on the market. These grades are austenitic chromium alloys, also known as “18/8” stainless steels because the composition of the steel is 18% chromium and 8% nickel. The common grades for this specification are 304/304L and 316/316L.

What is ASTM A358?

ASTM A358 is a specification for electric-fusion-welded austenitic stainless steel pipe that performs well in high-temperature industrial applications.

Contact Us For ASTM A312, A358, A778 JIS G3459 Stainless Steel Welded Tube Price

Not only do we offer stainless steel pipes that meet ASTM A312, ASTM A358, and ASTM A778 standards, but our products are in stock and ready to ship. As leading Stainless Steel Pipe Suppliers and Manufacturers, we are committed to providing high-quality stainless steel pipes to meet a variety of industrial needs. Whether you need seamless or welded pipes, we offer competitive prices and excellent service.

Contact us today to get the latest stock information, detailed price quotes, and professional technical support