G-TECH 316HB

SMAW
  • AUSTENITIC STAINLESS STEELS
316H

Description

Basic coated electrode for 316H alloy
The primary application for this filler metal is surfacing of CMn steel or low alloy steel to improve their corrosion resistance. The ER309Mo is used to achieve a single-layer overlay with a chemical composition similar to that of a 316 stainless steel. It's resistant to the chemical aggression caused from acids, atmospheric agents and marine environments. The addition of 2.0 percent to 3.0 % molybdenum increases its pitting corrosion resistance in halide-containing environments. It presents high tensile strength and it is creep resistant.
Specifications
ISO 3581-A
E 19 12 2 B
AWS A5.4
E316H-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

27.91

Hardness

200HV - 220HV
Chem. Comp. %
DEFAULT
C
0.065
Mn
1.8
Ni
11.5
Cr
19
Mo
2.7
Si
0.7
Mechanical Properties
min
variant
Tensile strength Rm MPa
550
615
Yield strength Rp0.2 MPa
350
470
Elongation A (L0=5d0) %
25
37
Impact Charpy ISO-V
-
90J @ 20°C
Impact Charpy ISO-V
-
80J @ -60°C
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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