AKR317

Standard: 

EN ISO 3580 B E5515-G

AWS A5.5 E8015-G

GB/T 5118 E5515-1CMV

Description: AKR317 is a low-hydrogen-sodium-coated low-alloy heat-resistant steel electrodes have excellent welding processability and can be welded in all positions.The welded joint has high strength, good oxidation resistance when it is lower than 600℃, high temperature strength, excellent creepresistance and fatigue resistance, good operability of welding rod, suitable for on-site installation and construction.The deposited metal is pure, such as S, P and other impurities are extremely low, S ≤ 0.010%, P≤0.012%. Meet the requirements of GB/T5118E5515-1CMV related items.

Application: Suitable for welding chromium-molybdenum-vanadium vanadium pearlitic heat-resistant steel (1Cr-0.5Mo 0.25V) steel plates for large-scal equipment with harsh service conditions and complex corrosive media such as petrochemical, coal chemical, and thermal power plants.

Typical Chemical Composition(%): 

C:0.08    Mn:0.76    P:0.008     S:0.003     Si:0.21     

Cr:1.27    Mo:0.58    V:0.23     As:0.003     Sn:0.001      Sb:0.001

Typical Mechanical Properties(%): Normal Temperature / Heat Treatment 730℃*2h

Tensile strength (MPa) : 650

Yield Stress (MPa) :  565

Elongation (%) :  23

Impact values (J)  :  149J  138J  169J/20℃

Typical Mechanical Properties(%): 475℃

Yield Stress (MPa) :  490

Impact values (J)  :  149J  138J  169J/20℃

Notes on Usages:

1. The electrodes must be baked at350~380℃for an hour before welding and used as soon as baking is completed.

2.The stains on the weldments, such as rust, oil stains, moisture, etc., must be cleared away before welding

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