G-TECH 308HB
SMAW
- AUSTENITIC STAINLESS STEELS
308H
Description
Basic coated electrode for 304/304H base material for high service temperature service
Its basic coating ensures excellent positional welding characteristics with good gap bridging ability. The weld pool and slag are easy to control and facilitate the achievement of a clean bead surface even in narrow preparations and in root pass. Ease of slag removal reduces post-welding cleaning operations to a minimum. These products are suitable to weld heavy thick (>12mm) of 321H and 347H to avoid typical service HAZ cracking of these grades. Mainly applications include petrochemical and chemical process plant. Typical service temperatures are 400°C to 800°C.
Specifications
ISO 3581-A
E 19 9 H B 4
AWS A5.4
E308H-15
Shielding
-
Positions
PA, PB, PC, PD, PE, PF
Current
DC+;
Packaging Type
Carton box
Asme qualifications
F-No (QW432)
5
A-No (QW442)
8
Ferrite
2-8 FN
Pren
20.33
Chem. Comp. %
DEFAULT
C
0.06
Mn
1.4
Ni
10
Cr
20
P
0.015
S
0.002
Mo
0.1
Si
0.85
Cu
0.05
Mechanical Properties
min
variant
Tensile strength Rm MPa
550
560
Yield strength Rp0.2 MPa
350
400
Elongation A (L0=5d0) %
30
35
Impact Charpy ISO-V
-
100J @ 20°C
Impact Charpy ISO-V
-
-
Welding Parameters
2.5
mm
3.2
mm
4
mm
5
mm
Ampere
50A - 80A
80A - 110A
110A - 150A
160A - 210A
Voltage
-
-
-
-
Packaging
56 pcs/kg
28 pcs/kg
19 pcs/kg
12 pcs/kg
Packaging Type
Carton box
Carton box
Carton box
Carton box
