OK 76.35

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Mô tả

OK 76.35

OK 76.35 is an LMA electrode containing 5Cr0.5Mo for welding creep-resistant steels. It is especially suitable for pipe welding. The electrode runs with a quiet, stable arc and gives a minimum amount of spatter loss. A preheating and interpass temperature of 150-260°C is normally required. The mechanical properties stated here are after one hour

of heat treatment at 740°C.

 

Classifications: SFA/AWS A5.5:E8015-B6, EN ISO 3580-A:E CrMo5 4 2 H5
Approvals: Seproz UNA 272580, NAKS/HAKC 2.5-4.0 mm

Approvals are based on factory location. Please contact ESAB for more information.

 

Welding Current: DC+-
Diffusible Hydrogen: < 5.0 ml/100g
Alloy Type: Creep resisting
Coating Type: Lime Basic

 

Typical Tensile Properties
Condition Yield Strength Tensile Strength Elongation
ISO
PWHT 750°C 1h 500 MPa 620 MPa 22 %

 

Typical Charpy V-Notch Properties
Condition Testing Temperature Impact Value
ISO
PWHT 750°C 1h 20 °C 110 J

 

Typical Weld Metal Analysis %
C Mn Si Ni Cr Mo
0.05 0.7 0.4 0.03 5 0.55

 

Deposition Data
Diameter Current Voltage kg weld metal/ kg electrodes Number of electrodes/kg weld metal Fusion time per electrode at 90% I max Deposition rate 90% I max
2.0 x 300 mm 50-70 A 23 V 0.57 139 53 s 0.49 kg/h
2.5 x 300 mm 65-95 A 23 V 0.57 76.9 63 s 0.7 kg/h
3.2 x 350 mm 90-130 A 24 V 0.56 50.0 70 s 1.0 kg/h
4.0 x 450 mm 125-165 A 24 V 0.58 33.3 80 s 1.3 kg/h

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