The high contents of molybdenum and nitrogen present in 6Mo is what gives this super austenitic alloy an amplified corrosion resistance properties. A benefit of using 6Mo stainless steel pipe is that they tend to exhibit high resistance not only to pitting but also to crevice corrosion.

Specification of ASTM A312 UNS 31254

6Mo stainless steel pipe have been produced according to specification ASTM A312 UNS S31254, they have a much higher tensile strength properties and higher creep-rupture in comparison to the more typical austenitic stainless steels such as 316L.

This specification also takes into consideration every pipe that is produced. For instance, tests like tension test, flattening test, hardness test, flaring test along with a nondestructive electric test or a hydrostatic test are performed on the 6Mo Stainless Steel pipes.

Properties of 6Mo Stainless Steel Pipe

Material to UNS S31254 is described as a 6Mo super austenitic stainless steel.

6Mo (UNS S31254) is a super austenitic stainless steel with a high level of molybdenum and nitrogen, providing high resistance to pitting and crevice corrosion as well as high strength compared with conventional austenitic stainless steels such as 316L.

Chemical Composition

Mechanical Properties

Inspection of 6Mo Stainless Steel Pipe

6Mo stainless steel pipe is widely used, so ensuring the quality has always been a concern for customers. To ensure that their quality and performance meet usage requirements, a series of experiments and inspections are required.

Typical Manufacturing Specifications

ASTM A213

ASTM A269

ASTM A312

BS EN 10216-5

Applications

Seawater handling systems

Desalination plant equipment

Paper and pulp

Flue gas desulphurisation units in power plants

Chemical processing

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