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
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 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
Description

Application

Developed for welding austenitic stainless steels such as 316/316H in demanding high-temperature environments (500-800°C) with prolonged exposure to creep, these consumables are versatile for welding 321/321H and 347/347H grades in high-temperature structural applications. Particularly crucial in robust weldments with significant constraints, the incorporation of more ductile weld metal minimizes the risk of premature service failure attributed to intergranular HAZ cracking when compared to using 347H. Widely employed across the petrochemical industry, these consumables find essential application in steam piping, superheater headers, furnace parts, and specific components within gas and steam engine turbines. Their usage extends to fossil and nuclear-fueled power stations. Similar to 308H, these consumables require no preheating, maintain a maximum interpass temperature of 250°C, and do not necessitate post-weld heat treatment.

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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