UP-99 CrMo 2 (S1CrMo2)
SAW (submerged arc welding) wires for creep resisting steel

Classification DIN EN ISO

24598-A-S S CrMo2

Material No.

-

Classification AWS

A5.23 EB3R

Approvals

TÜV 03274, CE

Characteristics and application

Submerged arc welding wire for high temperature creep resistant 2.25%Cr-1%Mo ferritic steel. These steels are used for creep resisting applications up to ~600°C. Typical applications in power generation plant include steam piping, turbines and boilers; the alloy also finds applications in the chemical and petro-chemical industries. The wire has low levels of tramp elements (eg. Sn, As, Sb and P) providing a low Bruscato Factor (X< 10 ppm) for temper embrittlement resistant applications.

Base materials

For matching 2.25%Cr-1%Mo creep resisting ferritic steels
10CrMo 9-10, 12CrMo 9-10, G-17CrMo 9 10
ASTM: A182 grade F22, A199/A200 grades T21/T22, A213 grade grade T22, A217 grade WC9, A234 grade WP22, A335 grade P22, A387 grades 21/22

Typical analysis in %

C: 0,11
Si: 0,15
Mn: 0,55
Cr: 2,40
Mo: 1,00

Yield strength in Mpa

≥470

Tensile strength in Mpa

≥550

Elongation in %

4d/5d: ≥20/18

Typical heat treatment

Preheat temperature: 200°C
Interpass temperature: max. 300°C
PWHT: 690°C-750°C

Other products

SAW: UP-100 CrMo 2
MIG/GMAW: ED-SG CrMo 2 or ED-ER90S-B3
TIG/GTAW: WSG CrMo 2 or WS ER90S-B3
Gas welding: U 50 CrMo