1247 – High Manganese Stainless

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INTERNATIONAL CLASSIFICATIONS

AWS/ASME A 5.4 E 307-16

EN 1600: E 18 8 Mn R 32

DIN 8556: E 18.8 Mn R 26

ISO 3581: E 18.8 Mn R 32

NFA 81-343: EZ 18.8 MnR 26

FEATURES & APPLICATIONS

For reclaiming and joining 14% manganese steels, as well as non-alloy and alloy structural and heat treatable steels.

  • Non-synthetic, non-magnetic, high manganese stainless for joining and buffer layers.
  • “Non-magnetic” weld metal is not susceptible to cracking and possesses high deformation capacity.
  • Joins armor steels to themselves as well as to mild, stainless and manganese steels.
  • Offers a rare combination of toughness, crack resistance and impact resistance.
  • Easy and complete slag removal.
All Weld Metal Analysis (Typical Weight %)

Microstructure: Austenite with a ferrite content of 5FN.

Flux Color: Grey/Tan

CMnSiSPCrNiMoFe
.124.7.5.01.021991Bal
Typical Mechanical Properties

Undiluted Weld Metal Maximum Value Up to:

Tensile Strength 101,000 PSI (690 MPa)

Yield Strength 76,000 PSI (510 MPa)

Elongation 40%

Impact Energy 80J: +20°C

Hardness Brinell 200, Rockwell C25

Work Hardness Brinell 450, Rockwell C48

Welding Current & Instructions

Recommended Current: DC Reverse (+) or AC

Diameter (mm)3/32 (2.5)1/8 (3.25)5/32 (4.0)
Minimum Amperage7090120
Maximum Amperage90120150

Welding Techniques: Never preheat manganese steels due to crack sensitivity. Always use minimal amperage.

Welding Positions: Flat, horizontal, vertical up, overhead

Deposition Rates:

Diameter (mm)Length (mm)Weldmetal/ ElectrodeElectrodes per lb (kg) of WeldmetalArc Time of Deposition min/lb (kg)Amperage SettingsRecovery Rate
3/32 (2.5)12″ (300).3 oz. (9g)50 (109)35 (76)80110%
1/8 (3.25)14″(350).7 oz (20g)22 (49)21 (46)105110%
5/32 (4.0)14″ (350)1 oz (29g)15 (33)18 (40)135110%
APPROXIMATE ELECTRODE PACKAGING & DIMENSIONS
Diameter (mm)3/32 (2.5)1/8 (3.25)5/32 (4.0)
Length (mm)12″ (300)14″ (350)14″ (350)
Electrodes / lb26149
Electrodes / kg583019