• CROMOTHERME-1(RTE) - E8018-B2
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Electrodes for Creep Resisting Steels

CROMOTHERME-1(RTE)

AWS: SFA 5.5 E8018-B2

EN ISO CODE: 3580-A E CrMo1 B 3 2 H5

Weld metal having strict control on S, P, As, Sn & Sb will improve the subzero impact property and resists temper embrittlement. Weld metal retains its mechanical properties after prolonged heat treatments. Ideal for welding steam generating equipments and reactor vessels. The weld metal displays excellent tensile strength and creep resistance. Specially applicable wherever temper embrittlement resistance is required.

Approvals
CE
TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL

 

Element C Mn Si Cr Mo Sb As S P Sn Cu Ni Ti V
Percent 0.06 0.60 0.25 1.30 0.55 0.001 0.0035 0.009 0.009 0.003 0.018 0.14 0.002 0.008

 

TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL

 

 


 

YS

UTS


Elongation

CVN Impact Strength (J)

Hardness

 

(MPa)

(MPa)

(L= 5d)%

at Minus 33°C

(VPN)

SR at 690°C/ 1 hr

500

580

24

-

-

SR at 690°C/ 2.5 hrs

450

540

28

150

200

SR at 690°C/ 16 hrs

390

520

30

170

-

 

 

 

DIFFUSIBLE HYDROGEN CONTENT: 4 ml/100 gms of weld metal (max.).

X-FACTOR : (10P + 5Sb + 4Sn + As)/100 ≤ 12.0 (Elements in ppm)

4 J-FACTOR: (Si + Mn) x (P + Sn) 10^4 ≤ 125

STEP COOLING REQUIREMENT: CvTr40 +2.5 Δ CvTr40Sc < 10°C (Where CvTr40: Transition temperature at absorbed energy of 40J of heat treated specimen. Δ CvTr40Sc: Shift in 40J transition temperature due to step cooling)

CURRENT AND PACKING DATA: AC / DC(+)

 

Size (mm)

Dia x Length

6.3x450 5x450 4x350 3.15x350 2.5x350
Current Range (Amps) 250-300 200-250 140-180 100-130 70-100
Qty. (Pcs./Carton) 25 35 55 75 100

 

Electrodes for Creep Resisting Steels

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