RATNA 18/8/5 (AWS A5.4 E307-16(Nr.))

Home Products Manual Metal Arc Welding Electrodes(MMAW) RATNA 18/8/5 (AWS A5.4 E307-16(Nr.))

A basic coated austenitic stainless steel Electrode of the 18Cr-8Ni-6Mn.

Classification:

AWS/SFA-5.4: E 307-16 (Nr.), DIN E 18 8 Mn B 20
IS-5206 : E 18.8MnR 26

Approval:

RDSO

Characteristics:

A medium heavy coated austenitic stainless steel electrode with stainless steel core wire giving weld deposition of 18Cr-8Ni-5Mn. The weld metal has excellent heat resistance up to 900°C and corrosion resistance against atmosphere, sea water, and weak acids.

Application:

  • Easy to operate in all positions at low currents for joining and surfacing applications.
  • Enhances resistance to impact and abrasion, suitable for buffer layers on a variety of steels.
  • Specially designed for joining ferrite to austenitic steels, armour plates, and austenitic manganese steels (12% Mn).
  • Suitable for heat resistant steels and dissimilar material buffer layers.

Re-Dry Condition:

Re-Dry the electrode at 250°C for 1 hrs before use.

ALL WELD CHEMICAL COMPOSITION %
C Mn Si S P Cr Ni
0.14 max. 5.00 - 8.00 1.00 Max 0.030 Max 0.040 Max 18.00 - 21.50 9.00 - 10.70
ALL WELD MECHANICAL PROPERTIES
UTS (N/mm²) EL % (l=4d) Charpy “V” Notch Impact Hardness
590 - 670 30 - 40 +20°C : 80-120 J As Welded: 200 BHN
As Work: 500 BHN
DIMENSION, CURRENT CONDITION & PACKING DATA
Size (mm) (Dia) Size (inch) (Dia) Current Condition (DC+/AC) Amps kg./pkt. kg./Case
2.50 / 2.40 × 350 3/32” × 14” 50 - 80 2 20
3.15 / 3.20 × 350 1/8” × 14” 75 - 100 2 20
4.00 × 350 5/32” × 14” 110 - 140 2 20
5.00 × 350 3/16” × 14” 150 - 180 2 20
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