Use of an austenitic stainless steel
OwnerHakan Silfverlin, Charlotte Ulfvin +1inventors
InventorsHakan Silfverlin, Charlotte Ulfvin, Gustaf Zetterholm
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Abstract
Austenitic alloy with following composition, in weight-percent: Cr 23-30, Ni 25-35, Mo 2.0-6.0, Mn 1.0-6.0, N 0-0.4, C up to 0.05, Si up to 1.0, S up to 0.02, Cu up to 3.0, W 0-6.0, one or more element of Mg, Ce, Ca, B, La, Pr, Zr, Ti, Nd up to 2.0 and balance Fe and normally occurring impurities and additions as wire in oil- and gasextraction, specially reinforcement wire in the application wirelines and which shows a combination of good corrosion resistance and good mechanical properties, especially a tensile strength of at least 310 kpsi at diameters of 1.0 mm and thinner.
Claims5
An austenitic stainless alloy comprising the following composition, in weight-percent:
- Cr
- 23-30
- Ni
- 25-35
- Mo
- 3-6
- Mn
- 1-6
- N
- 0.0-40
- C
- up to 0.05
- Si
- up to 1.0
- S
- up to 0.02
- Cu
- up to 3.0
- W
- 0-6.0
- one or more of the Elements Mg, Ce, Ca, B, La, Pr, Zr, Ti, Nd up to 2.0
- and the balance Fe and normally occurring impurities and additions.
Dependencies are inferred from the claim text.