ASTM A553 Type 1

ASTM A553 Type 1 covers 9% nickel alloy steel plates that are used in the fabrication of cryogenic pressure vessels. This material is capable of operating at temperatures as low as -196oC, and has high levels of strength and weldability.

ASTM A553 Type 1 9% nickel is a martensitic steel when it is quenched or tempered up to thicknesses as high as 100 mm. It is a unique martensite as it isn’t brittle or hard, but it is strong and tough which makes it easily to fabricate into pressure vessels.

Our range of ASTM A553 Type 1 9% nickel steels are perfect for containing or transporting cryogenic gases, such as nitrogen, oxygen, and argon.

 Chemical Composition of ASTM A553 Type 1
Carbon (C)0.13%
Manganese (Mn)0.9%
Phosphorus (P)0.035%
Sulfur (S)0.040%
Silicon (Si)0.15-0.30%
Nickel (Ni)8.50-9.50%
Iron (Fe)Base Metal