Aug 31, 2025 Leave a message

ASTM A423 Gr. 1 Corten-a Seamless Low Alloy Steel Pipes

Products Description

 

CORTEN STEEL A423 A GR 1 PIPES SPECIFICATIONS

Dimensions : ASTM, ASME, API.

Sizes : ½" OD to 64" OD

Schedule : SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules

Additional Testing : NACE MR0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc.

Length : Single Random, Double Random & Cut Length

 

ASTM A423 GRADE 1 SEAMLESS PIPES CHEMICAL COMPOSITION

Grade C Si Mn P S Cr Cu V Ni
COR-TEN A 0.12 0.25-0.75 0.20-0.50 0.07-0.15 0.03 0.50-1.25 0.25-0.55 - 0.65

 

A423 GR 1 CORTEN STEEL SEAMLESS PIPES MECHANICAL PROPERTIES

Grade Minimum yield point ReH Mpa *) Tensile strength Rm MPa Minimum elongation A (Lo=5.65 √So) %
COR-TEN A 355 470-630 20

 

APPLICATIONS INDUSTRY

  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry
  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals

 

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FAQ

 

What is ASTM a 423 material?

A423 is a low alloy carbon steel grade that forms an oxide layer on the surface when exposed to extreme weather conditions. This layer is called patina and it work as a protective coating on ASTM A423 products, resisting corrosion for a longer period.

 

What is special about Corten steel?

Corten Steel is also known as a 'weathering steel', as the steel forms a protective layer on its surface under the influence of the weather; and it is this protective layer that gives Corten far superior resistance to atmospheric corrosion, compared to other steels.

 

What is the ASTM for Corten steel?

What is Corten Weathering Steel? Weathering steels are a family of ASTM specifications, as well as several trademarked specifications exhibiting similar corrosion-resistant properties. The ASTM specifications are A588, A242, A606-4, A847, A871-65 and A709-50W. The primary trademarked product is Cor-ten®.

 

What is the ASTM equivalent of Corten?

The ASTM A588 grade A plate is equivalent to Corten A steel plate. ASTM A242 plate is equivalent to Corten B. Compared with common low alloy high strength steel such as A572 Grade 50, ASTM A588 and ASTM A242 has advantages of weathering resistant performances.

 

What is the ASTM A242 steel equivalent to?

The superior ASTM A242 steel properties allow this steel to be used in different applications. The ASTM A242 steel equivalent grade is bs-6323-5/6, JIS g3445, ASTM A214, ASTM A424 gr 1, din 17177, and EN 10217-1/2.

 

About Gnee

 

Founded in 2008, Gnee (Tianjin) Supply Chain Group Co., Ltd. specializes in the global trade and processing of Corten steel products.
• We handle all kinds of Corten engineering projects, such as bridges, gardens, hotels, and facade systems.
• Compliant with ASTM, EN, and other international standards; third-party inspection supported.
• Exported to over 200 countries and regions worldwide.
• 8 subsidiaries across China and overseas, ensuring global service coverage.
Application Fields: Architecture, landscaping, gardening, cladding, and urban infrastructure.

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