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Classifications :AWS/SFA : E 9018- B3
BSEN : E Cr Mo 2 B 42
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Characteristics :A hydrogen controlled, Iron powder type electrode which operates in all conventional, positions. The electrode possess good welding characteristics and yields weld metal Which contains 2.25% Cr & 1% Mo. The weld metal displays excellent, creep resisting property and retains strength, upto 550°C. The welds are of radiographic quality.
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Applictions :The electrode is suitable for use In oil refineries, thermal and chemical plants for service upto 550°C. The materials to be welded are: ASTM:A 387 gr. 2l & A 182 gr. F22, A234 gr. WP22.
DIN &: 11 Cr Mo 9-10, 10 CrMo 9-10, 6 Cr Mo 9-10 BSEN
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Weld Metal Chemistry(%) (Typical) :
C Mn Si Cr Mo S P 0.06 1.0 0.45 2.30 1.10 0.02 0.02
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All-Weld Mechanical Properties :
UTS YS Elong(%) (N/mm2) (N/mm2) (L=4d) 680 580 22
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High Temperature strength(Typical) :
Preheating Stress Relleving 0.2% Proof Stress(N/mm2) 180°C 710°C for one hour and furnace cooling At 500oc 425 N/mm2 375 N/mm2
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Current Type :DC(+)
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Welding Position :
Size(mm) 2.5×350 3.15×450 4.00×450 5.00×450 Current(amp) 70-100 100-130 140-180 190-230
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Welding Instructions :
- Rebake the electrode at 250°C -300°C for one hour.
- Hold a short arc and use minimum possible current,
- Maintain interpass temperature of 150°C max during welding (Optionally also available in vacuum packed condition rebaking not required in this Packaging.)