GRINOX 9L

IDENTIFICATION : GRINOX–9L E 309L-16

SPECIFICATIONS : AWS/SFA 5.4 : E 309L- 16, IS : E 23.12 LR 26, BS 2926-84 23.12 LR, DIN 8556 E23.12 LR 23

CHARACTERISTICS :

An extruded, rutile based heavy coated all position electrode which deposits extra low carbon 23Cr/ 13 Ni austenitic stainless steel weld metal. The high alloy content and ferrite level enable the weld metal to tolerate dilution from mild and low alloy steels without hot cracking or brittle structure.

TYPICAL APPLICATION :

Joining of clad steels and dissimilar joints between stainless and mild or low alloy steels. Buffer layers on mild and low alloy steels prior to overlaying with E 308L electrode. Welding of similar compositions, 309 type austenitic stainless steel. Joining ferritic – martensitic stainless steel type 410 and 430.

WELDING PROCEDURE :

The base metal should be free from oil, grease or dirt before welding. Keep a short arc-length. The weld bead should be cleaned with stainless steel wire brush.

WELD METAL ANALYSIS (RANGE) % :

C Mn Si S P Cr Ni Mo
0.040 max 0.5-2.50 0.30-0.90 0.03 max 0.03 max 22.0-25.0 12.0-14.0 0.75 max

MECHANICAL PROPERTIES (RANGE) :

Tensile Strength MPa Elongation (%) (L=4D) Charpy V-notch impact strength
560-660 30-40 Temp Joule
27° C 60-80
0° C 55-80

REDRYING : 250°C/2hrs., max 5 cycles, 10 hr. total.

RECOMMENDED CURRENT AND PACKING DATA :

SIZE (mm) LENGTH (mm) AMPS AC/DC (+) PACKING PER BOX (Pcs) WEIGHT / 1000 Pcs, Kg.
2.50 350 70-90 100x6=600 21.00
3.15 350 90-120 60X6=360 33.00
4.00 350 120-150 40X6=240 53.00
5.00 350 140-180 25X6=150 80.00

Approved By :