IDENTIFICATION
Griduct 78C3L, E 7018C3L
CLASSIFICATION
AAWS/SFA 5.5: E7018-C3L, BS 2493 1NiBH
DIN:8529: EY46551NiB
DESCRIPTION
An extra low carbon basic coated low-hydrogen electrode producing a nominal 1.0% Ni weld metal, designed for welding C-Mn steel and low alloy steel where excellent fracture toughness at temperature down to minus 51°C is required. The addition of 1.0% Ni produces micro structural refinement, with improved tolerance to procedural variations compared to plain C-Mn weld metal. The deposited weld metal is of X-ray quality.
WELD METAL ANALYSIS (RANGE) %
| C | Mn | Ni | Si | S | Mo | Cr | V | P |
| 0.08 max | 0.5 - 1.40 | 0.80 - 1.10 | 0.20 - 0.50 | 0.025 max | 0.35 max | 0.15 max | 0.05 max | 0.025 max |
MECHANICAL PROPERTIES (RANGE)
| TS (MPa) | YS (MPa) | EL (%) (L=4D) | CVN Impact Value | |
| Temp | Joules | |||
| 500 - 600 | 400 - 500 | 25 - 32 | -51°C | 40 - 100 |
TYPICAL APPLICATIONS
• Welding of higher strength steel structure where post-weld heat-treatment is impracticable.
• Off-shore construction, pressure vessels, pipe lines, BS4360 Grade 50E, 55C, 55EF structural steel, DIN St52.3, GS-38, GS-52, etc.
MICROSTRUCTURE : In the as welded condition, the microstructure is ferritic with a component of acicular ferrite for optimum toughness.
DIFFUSIBLE HYDROGEN IN THE WELD METAL : Max 4.0 ml / 100 g of weld metal
ASME IX QUALIFICATION : QW-432 F-NUMBER 4 QW-442 A-NUMBER 10
REDRYING TEMPERATURE : 300°C / 2 hrs, max 5 cycles, 10 hrs. total.
WELDING POSITION :
PACKING PARAMETERS
| Size (mm) | Length (mm) | Amps AC / DC (+) | Packing / Box (kg) | Packing / Box (Pcs) |
| 2.5 | 350 | 65 - 100 | 5 x 4 = 20 | 160 x 4 = 640 |
| 3.15 / 3.20 | 450 | 80 - 130 | 5 x 4 = 20 | 110 x 4 = 440 |
| 4 | 450 | 130 - 180 | 5 x 4 = 20 | 70 x 4 = 280 |
| 5 | 450 | 160 - 220 | 5 x 4 = 20 | 45 x 4 = 180 |