DAIKOWM 309H

GMAW
  • AUSTENITIC STAINLESS STEELS
309H

Description

Solid wire for high temperature applications, dissimilar joints and for overlaying
High 0.04%-0.08% carbon version of 309 stainless steel consumables for high-grade applications service temperature for analogous, heat resisting rolled, forged and cast steels as well as for heat resisting, ferritic CrSiAl steels. Mainly used in annealing shops, hardening shops, steam boiler construction, the crude oil industry and the ceramics industry. Austenitic deposite with a ferrite content of approx. 8 %. Preferably used for applications involving the attack of oxidizing gases. Scaling resistance up to +1000 °C.
Specifications
ISO 14343-A
G 23 12 H
AWS A5.9
ER309
Shielding
M12, M13
Positions
PA, PB, PC, PD, PE, PF, PG
Current
DC+
Packaging Type
Drums, B300, D200 and D100 spools.
Asme qualifications
F-No (QW432)
6
A-No (QW442)
8

Ferrite

~8 FN

Pren

22

Hardness

85HRB
Chem. Comp. %
DEFAULT
C
0.1
Mn
0.8
Ni
11
Cr
22
P
0.015
S
0.01
Si
1.6
Mechanical Properties
min
variant
Tensile strength Rm MPa
550
640
Yield strength Rp0.2 MPa
350
400
Elongation A (L0=5d0) %
25
35
Impact Charpy ISO-V
-
81J @ 20°C
Impact Charpy ISO-V
-
-
Welding Parameters
1 mm
1.2 mm
Ampere
160A - 220A
200A - 270A
Voltage
25V - 29V
26V - 30V
Packaging
Ø 0,8÷1,6mm
Ø 0,8÷1,6mm
Packaging Type
Drums, B300, D200 and D100 spools.
Drums, B300, D200 and D100 spools.
Description

Application

"Designed for diverse applications, this GMAW wire is suitable for heat-resisting rolled, forged, and cast steels, along with heat-resisting, ferritic CrSiAl steels. Its versatility extends to applications in annealing shops, hardening shops, steam boiler construction, the crude oil industry, and the ceramics industry. Particularly effective in environments with oxidizing gases, nitrogen, and gases containing small amounts of oxygen. Exhibiting exceptional scaling resistance up to 1050 °C, it is a preferred choice for high-temperature applications, offering adaptability in dissimilar joints and overlaying. Recommended preheating and interpass temperatures range from 200 to 300 °C, specifically for ferritic steels.

Alloy Type

High carbon version of 309 stainless steel for high-grade applications service temperature.

Microstructure

Austenitic deposited with a ferrite content of approx. 8 %

Materials


EN W.Nr.: 1.4821 (X15CrNiSi25-4), 1.4823 (GX40CrNiSi27-4), 1.4713 (X10CrAlSi7), 1.4724 (X10CrAlSi13), 1.4742 (X10CrAlSi18), 1.4762 (X10CrAlSi25), 1.4710 (GX30CrSi7), 1.4740 (GX40CrSi17).
ASTM: 327, A297 HC.

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