DAIKOWM 316H

GMAW
  • AUSTENITIC STAINLESS STEELS
316H

Description

Solid wire for 316/316H materials used at elevated temperatures
These wires are designed to match 316/316H austenitic stainless steels for elevated temperature. Carbon content in the range of 0.04%–0.08% provides higher strength at elevated temperatures. This consumable is suitable to weld 321/321H and 347/347H. Typical applications include steam pipes, furnace parts and components for petrochemical plants and for power stations. Typical service temperatures are 500°C to 800°C.
Specifications
EN ISO 14343-A
G 19 12 3 H
AWS A5.9
ER316H
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

2-8 FN

Pren

25.43

Hardness

200HV - 220HV
Chem. Comp. %
DEFAULT
C
0.05
Mn
1.9
Ni
11.4
Cr
18.5
P
0.015
S
0.01
Mo
2.1
Si
0.4
Cu
0.1
Mechanical Properties
min
variant
Tensile strength Rm MPa
550
600
Yield strength Rp0.2 MPa
350
430
Elongation A (L0=5d0) %
25
35
Impact Charpy ISO-V
-
30J @ -100°C
Impact Charpy ISO-V
-
-
Welding Parameters
1.0 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

The consumables of the 316H subfamily are specifically designed for the welding of austenitic stainless steels of the 316/316H grades, ideal for operating at high temperatures ranging between 500 °C and 800 °C. These materials are particularly effective in long-term creep conditions. They can also be used for welding grades 321/321H and 347/347H, where high-temperature structural service is required. This is crucial in scenarios involving thick and highly restrained welds, as the choice of a more ductile filler metal compared to 347H reduces the risk of premature failures caused by intergranular crack susceptibility in the heat-affected zone (HAZ). The 316H subfamily is used in the welding of components such as steam pipes, superheater headers, furnace parts, and components of turbines dedicated to gas and steam engines. These applications are typical of the petrochemical industry, fossil fuel and nuclear power plants. No preheating is required, with a maximum interpass temperature of 250 °C, and no post-weld heat treatment (PWHT) is necessary.

Alloy Type

High carbon 316 austenitic stainless steels.

Microstructure

Austenite with delta ferrite typically controlled in the range 2-8FN.

Materials

For 316/316H materials used at elevated temperatures.
  • EN W.Nr.: 1.4408 (X5CrNiMo 17-12-2)
  • ASTM: 316, 316H, CF10M
  • UNS: S31609

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