Standards

TS EN ISO 21952-A : W CrMo 91

EN ISO 21952-A: W CrMo 91

AWS A5.28/(A5.9) : ER 90 S-B9

Chemical Composition of Welding Wire % (Typical)

C

Si

Mn

Mo

Cr

V

Ni

Nb

N

0.09

0.25

0.6

0.95

9.0

0.2

0.65

0.06

0.05

Mechanical Properties

Yield Strength (N/mm2)

Tensile Strength (N/mm2)

Impact Strength (ISO-V/+20°C)

Elongation ((Lo=5do) (%)

Heat Treatment

650

740

min. 60 J

min. 18

745-775°C/2h/3000C air

Typical Base Material Grades

• X10CrMoVNb 9-1, A213 Gr. T91, A 335 Gr. P91 (T31), A 139 GR. T91, %9-12 Cr martensitic

stainless steels.

Features and Applications

•IGUsweedldfoinrg of high heat resistance steels such as P91 / T91

•wPer plants, turbines, oil refineries, cool and gasification plants, boiler production, also used for the welding of steels with 9Cr 1Mo

•ldWmetal is resistant to working temperature up to 600°C

• Shielding gas (TIG): Pure Ar


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