IDENTIFICATION
GRICON GREEN (SPL) H4R, E 7018-1 H4R
CLASSIFICATION
AWS/SFA 5.1: E 7018-1 H4R, BS: E5155B (11026H),
DIN: 5155B1029 EN ISO 2560-A E465B32H5
APPROVALS : ABS, DNV-GL, LRS, BV, CE, KNPC, KOC, HPCL, NTPC, IOCL, IOTL, HPCL, EIL.
DESCRIPTION
A heavy coated basic type, hydrogen - controlled, iron powder electrode with high deposition efficiency 112%. The electrode deposits weld metal, which is of radiographic quality and meets impact requirements at minus 50°C.
WELD METAL ANALYSIS (RANGE) %
| C | Mn | Si | S | P | Cr | Ni | Mo | V | Mn + Cr + Mo + Ni + V |
| 0.1 | 1.0-1.55 | 0.55 | 0.025 | 0.025 | 0.2 | 0.3 | 0.3 | 0.08 | 1.75 max |
| max | max | Max | max | max | max | max | max |
MECHANICAL PROPERTIES (RANGE)
| TS (MPa) | YS (MPa) | EL (%) (L=4D) | CVN Impact Value | |
| Temp | Joules | |||
| -20°C | 120 | |||
| 500 - 650 | 440 - 540 | 24 - 32 | -50°C | 50 |
| -45°C | 50 | |||
TYPICAL APPLICATIONS
• For shipbuilding.
• For the welding of structural steel where resistance to brittle fracture is required under adverse operating conditions such as those found in off-shore production platforms.
• Used for production of pressure vessels, bridges, pipelines recommended for higher carbon & higher Sulphur steels, which are susceptible to hydrogen induced cracking.
REDRYING TEMPERATURE : 300°C / 2hrs
DIFFUSIBLE HYDROGEN : max 4.0ml / 100g of weld metal in the weld metal
ASME IX QUALIFICATION : QW - 432 F - NO 4, QW - 442 A - NO 1
WELDING POSITION :
PACKING PARAMETERS
| Size (mm) | Length (mm) | Amps AC / DC (+) | Packing / Box (kg) | Packing / Box (Pcs) |
| 2.5 | 350 | 65 - 85 | 2 x 6 = 12 | 150 x 4 = 600 |
| 3.15 / 3.20 | 350 / 450 | 110 - 140 | 2 x 6 = 12 | 100 x 4 = 400 |
| 4 | 350 / 450 | 140 - 180 | 2 x 6 = 12 | 65 x 4 = 260 |
| 5 | 450 | 180 - 240 | 2 x 6 = 12 | 65 x 4 = 260 |