G-TECH 101C

SMAW
  • CARBON STEELS
STRUCTURAL STEEL

Description

Cellulosic coated electrode for pipelines applications
Cellulosic coated electrode for welding girth seams of pipelines. It is suitable for welding in all position and for root passes, fill and cover passes application. It is also suited for depositing root passes on high-strength pipe steels. Excellent weldability with a spatter free arc, self-releasing slag producing a very smooth bead appearance. Good radiography quality.
Specifications
ISO 2560-A
E 38 3 C 21
AWS A5.1
E6010
Shielding
-
Positions
PA, PB, PC, PD, PE, PF, PG
Current
DC+
Packaging Type
Carton box and dry pack
Asme qualifications
F-No (QW432)
3
A-No (QW442)
1
Chem. Comp. %
DEFAULT
C
0.12
Mn
0.5
P
0.02
S
0.01
Si
0.2
Mechanical Properties
min
variant
Tensile strength Rm MPa
430
470
Yield strength Rp0.2 MPa
380
380
Elongation A (L0=5d0) %
22
25
Impact Charpy ISO-V
-
50J @ -30°C
Impact Charpy ISO-V
-
-
Welding Parameters
2.5 mm
3.2 mm
4 mm
5 mm
Ampere
50A - 80A
80A - 120A
110A - 160A
160A - 200A
Voltage
-
-
-
-
Packaging
50 pcs/kg
31 pcs/kg
20 pcs/kg
10 pcs/kg
Packaging Type
Carton box and dry pack
Carton box and dry pack
Carton box and dry pack
Carton box and dry pack
Description

Application

Carbon-manganese (C-Mn) steels serve as the predominant structural steels extensively used across various applications in the engineering industry. Successful welding of C-Mn steel fabrications is generally achievable, provided the steel composition is known, necessary precautions are taken, and qualified procedures are adhered to. Weldability varies among C-Mn steels, with potential cracking mechanisms, including hydrogen cracking, solidification cracking, and reheat cracking, depending on specific circumstances. These consumables effectively resist such issues, emphasizing the importance of a meticulous welding procedure. While preheat and post-weld heat treatment (PWHT) may not be universally required, the actual specifications depend on the grade and thickness of the base material being welded. Attaining the required mechanical properties in a welded joint with C-Mn steels is achievable through the use of appropriate welding consumables. However, the intricate structural changes during the weld thermal cycle necessitate careful evaluation of properties such as heat-affected zone (HAZ) toughness and hardness.

Alloy Type

Consumables for welding mild and C-Mn steels of 340-510MPa tensile strength.

Microstructure

Predominantly ferrite.

Materials


EN W.Nr.: EN AW-Al 99,0 (1200), EN AW-Al 99,7 (1070A), EN AW-Al 99,5 (1050A), EN AW-Al 99,5 (1350), EN AW-Al 99,8 (1080A).

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