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Products chevron_right LOW ALLOY STEEL (High Temperature) chevron_right NEXA 7018-A1
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NEXA 7018-A1

AWS/SFA Classification: LOW ALLOY STEEL (High Temperature)

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Applications

  • check_circle Welding 0.5 Mo and 1 Cr - 0.5 Mo steels and similar composition steels
  • check_circle High temperature and high pressure boilers
  • check_circle Chemical industries, Oil refining industries, Turbine casting
  • check_circle Suitable for 15Mo3, 16Mo3, 14Mo6
  • check_circle Joining ASTM SA 182/182M Gr.F1, SA 204/204M Gr.A, SA 209/209M Gr.T1/T1A/T1B, SA 217/217M Gr.WCI

Characteristics

  • check_circle Basic coated electrode
  • check_circle Good creep rupture strength at elevated temperature up to 550°C
  • check_circle High recovery electrode
  • check_circle Preheat and PWHT at 620°C is required
  • check_circle Radiographic quality welds
  • check_circle All position capability

Typical Weld Metal Chemistry (%)

C Mn Si Mo
<0.12 <0.9 <0.8 0.4-0.65

Mechanical Properties

UTS (MPa) YS (MPa) El% CVN Impact (J) (0℃) Condition Diffusible H2 Content
>490 >390 >22 80 PWHT: 620℃ for 1hr <5 ml/100 gm

Welding Parameters AC (70 OCV)/DCEP

2.5 x 350 mm 3.15 x 450 mm 4.0 x 450 mm 5.0 x 450 mm
60-90 100-130 140-180 180-220

Packaging

  • inventory_2 Available in Standard carton packing of 20 kg box containing 4 cartons of 5 kg each. Also available in vacuum packing