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ATOM ARC 9015-B9

Atom Arc 9015-B9 is designed to weld the modified 9% Cr - 1% Mo steels known by the designations T91, P91 or Grade 91.

Features

Atom Arc 9015-B9 is designed to weld the modified 9% Cr –
1% Mo steels known by the designations T91, P91 or Grade
91. These steels are designed to provide improved creep
strength, fatigue, oxidation, and corrosion resistance at
elevated temperatures.

Atom Arc 9015-B9
  • Industry
  • Pipeline
  • Process
  • Power Generation
  • Petrochemical
  • Welding Process
  • SMAW (Stick)

Classifications

  • Classifications/Approvals

    • SFA/AWS A5.5; E9015-B9H4R

Properties

Typical Properties
Stress Relieved 2 hrs. @ 1375ºF (746ºC)  
Yield Strength 94 ksi, 648 MPa
Tensile Strength 110 ksi, 758 MPa
Elongation in 2" 18 %
Typical Charpy V-Notch Impact Properties  
Testing Temperature 72ºF (22ºC) 52 ft.-lbs., 70 J
Typical Undiluted Weld Metal Analysis  
C 0.10 %
Mn 1.0 %
Si 0.2 %
P 0.010 %
S 0.010 %
Cr 9.0 %
Ni 0.2 %
Mo 1.0 %
V 0.2 %
Cu 0.1 %
Nb 0.04 %
N 0.035 %

SAW

Accessories

Depositions

Deposition Table
Diameter Optimal Amperage Range Amperage Deposition Rate Efficiency
3/32 in., 2.4 mm 90 A 70-100 1.7 lbs./hr., 0.8 kg./hr. 66.3 %
120 A 90-160 2.6 lbs./hr., 1.2 kg./hr. 71.6 %
1/8 in., 3.2 mm 140 A 90-160 2.7 lbs./hr., 1.2 kg./hr. 70.9 %
130-220 3.1 lbs./hr., 1.4 kg./hr. 75 %
5/32 in., 4.0 mm 170 A 130-220 3.8 lbs./hr., 1.7 kg./hr. 73.5 %
200 A 200-300 4.9 lbs./hr., 2.2 kg./hr. 76.4 %
3/16 in., 4.8 mm 250 A 200-300 5.4 lbs./hr., 2.4 kg./hr. 74.6 %
250-350 6.5 lbs./hr., 2.9 kg./hr. 75 %
7/32 in., 5.6 mm 300 A 250-350 7.2 lbs./hr., 3.3 kg./hr. 74 %
300-400 7.7 lbs./hr., 3.5 kg./hr. 78 %
1/4 in., 6.4 mm 350 A 300-400 8.7 lbs./hr., 3.9 kg./hr. 77 %

Extra Info

The recommended preheat temperature for 9% Cr - 1% Mo steels is 450-550°F depending on the thickness. Post weld heat treatment is generally required