Exaton

Exaton 27.31.4.LCuR

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Exaton 27.31.4.LCuR is a covered electrode of AWS E383-17 type with rutile coating and normal metal recovery for welding of high-alloy austenitic stainless steels of UNS S08028 (e.g. Sanicro 28) and Alloy 825 type (e.g. Sanicro 41). Exaton 27.31.4.LCuR is suitable for joining highly alloyed fully austenitic stainless steels, such as EN 1.4563 (Sanicro 28) and Alloy 825 (Sanicro 41), which have high corrosion resistance in sulphuric and phosphoric acids and excellent pitting resistance in acid solutions containing chlorides and fluorides, such as sea water. This electrode can be used for surfacing mild and low alloy steels to give protection against pitting corrosion in chloride-containing solutions. Because the product is a bit sensitive for forming hotcracks, a correct welding practice is important.


Typical Charpy V-Notch Properties

As Welded
Impact Value 49 ft-lb
Impact Value 66 J
Shielding Gas ISO
Testing Temperature 68 °F
Testing Temperature 20 °C

Typical Tensile Properties

ConditionElongationShielding GasTensile Strength Yield Strength
As Welded38 %ISO612 MPa (89 ksi)427 MPa (62 ksi)

Deposition Data

Current Deposition Rate @ 90% I max Diameter Deposition Efficiency (%) Number of electrodes/kg weld metal Voltage
40-95 A 33 sec 1.2 kg/h (2.6 lb/h) 2.5 x 300.0 mm (0.098 x 11.8 in.) 60 % 87 30 V
55-125 A 50 sec 1.6 kg/h (3.5 lb/h) 3.2 x 350.0 mm (1/8 x 13.8 in.) 60 % 45 30 V
70-185 A 48 sec 2.5 kg/h (5.5 lb/h) 4.0 x 350.0 mm (5/32 x 13.8 in.) 61 % 30 31 V

Classifications

Classifications EN ISO 3581-A : E 27 31 4 Cu L R
SFA/AWS A5.4 : E383-17
Werkstoffnummer : 1.4563

Approvals

Grade EN 13749
Society CE
Approvals are based on factory location. Please contact ESAB for more information.

Consumable Characteristics

Alloy Type Austenitic CrNiMo
Coating Type Acid Rutile
Ferrite Content FN 0
Welding Current AC, DC+

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
C Co Cr Cu Mn Mo N Ni P S Si
<=0.025 % 0.060 % 27 % 0.9 % 0.90 % 3.5 % 0.07 % 32 % 0.018 % 0.006 % 0.8 %
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How to purchase Exaton 27.31.4.LCuR

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Part Numbers and Accessories

Part Numbers : Exaton 27.31.4.LCuR
69032520U0
69033230U0
69034030U0
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