ESAB

OK 310Mo-L

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Basic electrode for joining and cladding of steel containing 25% Cr 22% Ni 2% Mo N type. The weld metal has an excellent resistance to very agressive corrosive media, such as in urea plants. The fully austenitic weld metal is insensitive to hot cracking. OK 310Mo-L is approved for construction and repair of urea plants using the stamicarbon process. The electrode is regularly used for routine repair works on AISI 316L in urea plants to gain superior resistance to corrosive attack.

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Typical Charpy V-Notch Properties

As Welded
Impact Value 40 ft-lb
Impact Value 54 J
Shielding Gas ISO
Testing Temperature 68 °F
Testing Temperature 20 °C

Typical Tensile Properties

ConditionElongationShielding GasTensile Strength Yield Strength
As Welded34 %ISO623 MPa (90 ksi)442 MPa (64 ksi)

Deposition Data

Current Deposition Rate @ 90% I max Diameter Deposition Efficiency (%) Number of electrodes/kg weld metal Voltage
70-100 A 62 sec 1.1 kg/h (2.4 lb/h) 3.2 x 350.0 mm (1/8 x 13.8 in.) 56 % 50 24 V
100-140 A 62 sec 1.7 kg/h (3.7 lb/h) 4.0 x 350.0 mm (5/32 x 13.8 in.) 55 % 33 25 V

Classifications

Classifications EN ISO 3581-A : E 25 22 2 N L R 1 2
SFA/AWS A5.4 : (E310Mo-16)

Approvals

Approvals NAKS/HAKC 3.2 mm
Snamprogetti Ureaplants
Stamicarbon Ureaplants
Approvals are based on factory location. Please contact ESAB for more information.

Consumable Characteristics

Alloy Type 25Cr 22Ni 2Mo N
Coating Type Rutile Basic
Ferrite Content FN 0
Welding Current DC+

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
C Cr Mn Mo N Ni Si Si+Fe
0.038 % 24.2 % 4.4 % 2.4 % 0.14 % 21.7 % 0.4 % 0 %
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Part Numbers and Accessories

Part Numbers : OK 310Mo-L
67833230L0 FIND A DISTRIBUTOR
67834030G0 FIND A DISTRIBUTOR
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