G-TECH 316H

SMAW
  • AUSTENITIC STAINLESS STEELS
316H

Description

Rutile-basic high carbon coated electrode for 316H alloy
These electrodes are designed to match 316/316H austenitic stainless steels for elevated temperature (500-800°C). The carbon content of these electrodes is over 0.04%. These electrodes are suitable to weld 321/321H and 347/347H in high temperature service. Typical applications include steam pipes, furnace parts, components for the petrochemical industries and for power stations. Its rutile-basic coating ensures an excellent combination of welding performance in all positions, except for vertical down, and a high resistance to cracking providing smooth arc transfer.
Specifications
EN ISO 3581-A
E 19 12 2 R
AWS A5.4
E316H-16
Shielding
-
Positions
PA, PB, PC, PD, PE, PF
Current
DC+, AC
Packaging Type
Carton box
Asme qualifications
F-No (QW432)
5
A-No (QW442)
8

Ferrite

2-8 FN

Pren

28.306

Hardness

200HV - 220HV
Chem. Comp. %
DEFAULT
C
0.05
Mn
1.11
Ni
11.9
Cr
19
Mo
2.82
Si
0.89
Mechanical Properties
min
variant
Tensile strength Rm MPa
550
650
Yield strength Rp0.2 MPa
350
460
Elongation A (L0=5d0) %
25
35
Impact Charpy ISO-V
-
50J @ 20°C
Impact Charpy ISO-V
-
-
Welding Parameters
2.5 mm
3.2 mm
4.0 mm
5.0 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
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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