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OK Autrod 312

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A continous solid corrosion resisting chromium-nickel wire for welding of stainless steels of the 29% Cr, 9% Ni types. OK Autrod 312 has a good oxidation resistance at high temperatures due to its high content of Cr. The alloy is widely used for joining dissimilar steels especially if one of the component is fully austenitic and steels that are difficult to weld, i e machine components, tools, austenitic manganese steels.

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Typical Charpy V-Notch Properties

As Welded
Impact Value 37 ft-lb
Impact Value 50 J
Testing Temperature 68 °F
Testing Temperature 20 °C

Typical Tensile Properties

ConditionElongationTensile Strength Yield Strength
As Welded20 %770 MPa (112 ksi)610 MPa (88 ksi)

Deposition Data

Current Deposition Rate Diameter Voltage Wire Feed Speed
50-140 A 0.8-2.7 kg/h (1.8-6.0 lb/h) 0.8 mm (0.030 in.) 16-22 V 3.4-11.0 m/min (134-433 in./min)
80-190 A 1.1-3.1 kg/h (2.4-6.8 lb/h) 1.0 mm (0.040 in.) 16-24 V 2.9-8.4 m/min (114-331 in./min)
180-280 A 2.6-4.5 kg/h (5.7-9.9 lb/h) 1.2 mm (0.047 in.) 20-28 V 4.9-8.5 m/min (193-335 in./min)

Classifications

Wire Electrode EN ISO 14343-A : G 29 9
SFA/AWS A5.9 : ER312

Consumable Characteristics

Alloy Type Ferritic-austenitic (29 % Cr - 9 % Ni)
Shielding Gas M12, M13 (EN ISO 14175)

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
C Cr Cu Mn Mo Ni P S Si
0.1 % 29 % - 1.7 % - 9 % 0.020 % 0.010 % 0.5 %
Typical Wire Composition %
0.10 % 30.7 % 0.14 % 1.6 % 0.20 % 8.8 % - - 0.4 %
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Part Numbers and Accessories

Part Numbers : OK Autrod 312
1675320300 Find a distributor
1675109820 Find a distributor
1675129820 Find a distributor
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