Select 7000-SR Close Window
 Print Sheet


Select 7000-SR is a premium all-position flux cored, gas shielded electrode designed to produce excellent mechanical properties in the as-welded and stress relieved conditions. This electrode is specifically developed to maintain tensile strength and high toughness at low temperature after long term or repeated post weld heat treatment. It is ideal for pressure vessels, flanges and valves, piping and repair applications. Argon with 20-25% CO2 is the only recommended shielding gas. CLASSIFICATIONS:

  • E71T-1MJ-H4 , E71T-9MJ-H4 and E71T-12MJ-H4 per AWS A5.20
  • E71T1-M21A6-CS2 and E71T1-M21P6-CS2 per AWS A5.36
  • CWB approved to CSA W48-06, E491T-12MJ-H4
ADVANTAGES:
  • Maintains excellent mechanical properties after extended stress relief up to 16 hours
  • Possesses excellent notch toughness at -60F before and after post weld heat treatment
  • Maintains low hardness in the as-welded and PWHT condition
  • Deep penetrating arc that reduces the potential for lack of fusion
  • Very low diffusible hydrogen levels of less than 4.0mL/100g

TYPICAL MECHANICAL PROPERTIES
 
As-Welded
SR 8 Hr. @ 1150°F
SR 16 Hr. @ 1150°F
Ultimate Tensile Strength (psi) 82,000 78,000 74,000
Yield Strength (psi) 65,000 62,000 59,000
Percent Elongation 34 31 29
CVN (ftlb f) @ -40° F 91 94 100
                  @ -60° F 82 79 83
Max Hardness (per NACE MR0175) 219 HV10 200 HV10 --
Brinell Hardness (10mm, 3000kgf) 183 BHN 179 BHN --

TYPICAL DEPOSIT COMPOSITION (wt%)
Sheilding Gas C Mn P S Si Ni
75Ar/25CO2
.06 1.40 .009 .007 .38 .46

RECOMMENDED WELDING PARAMETERS
  Optimum Range
Diam. Position Amps Volts WFS Amps Volts
1/16" Flat 350 28 350 150-400 22-33
  Overhead 225 25 180 150-310 22-28
  Vertical up 225 24 180 150-280 22-27
.052" Flat 300 27 440 100-330 19-31
  Overhead 200 25 245 150-310 21-28
  Vertical up 200 24 245 150-280 21-27
.045" Flat 250 27 450 100-300 21-31
  Overhead 190 25 305 150-280 21-29
  Vertical up 190 24 305 100-230 21-28

Notice: The results reported are based upon testing of the product under controlled laboratory conditions in accordance with American Welding Society Standards. Actual use of the product may produce different results due to varying conditions. An example of such conditions would be electrode size, plate chemistry, environment, weldment design, fabrication methods, welding procedure and service requirements. Thus the results are not guarantees for use in the field. The manufacturer disclaims any warranty of merchantability or fitness for any particular purpose with respect to its products.