Classification:
EN ISO 3580-A
AWS A5.5
E CrMo2 B 42 H5
E 9018-B3
Description:
P 84CR is a basic-coated, low hydrogen electrode which deposits a low carbon 2.25% Cr/1.0% Mo
weld metal. It is intended for welding creep resisting steels of similar composition, used in steam
generation plant operating at temperatures up to 600°C, e.g. EN 10CrMo9-10, EN 11CrMo9-10,
ASTM 335 Gr. P22, ASTM 217 Gr WC9. Also suitable for use in the chemical and petrochemical
industries where resistance to hydrogen attack, corrosion from sulphur bearing crude oil and stress
corrosion cracking in sour environments is required. Preheat and interpass temperature of 200-250°C
is recommended. Post-weld heat treat at 690°C.
Coating type:
Basic
Mechanical properties
Metal recovery:
110-120%
Yield strength, Rp0.2%:
Tensile Strength, Rm:
Elongation, A5
Impact energy, CV:
Typical
Welding positions:
N/A**
N/A**
N/A**
N/A**
Hydrogen content / 100 g weld metal
≤ 5 ml
Welding current:
DC+
Redrying temperature:
350-400°C, 2h
Chemical composition, wt.%
Product data
2,5
350
71842500
65-100
22
0,72
71
0,8
3,2
350
71843200
90-150
23
0,73
37
1,4
4,0
350
71845000
130-200
24
0,73
19
1,8
5,0
450
71845000
160-265
25
0,73
12
2,6
53