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Oerlikon Welding · Submerged arc flux

OP 121TT

Oerlikon Welding
OP 121TT Submerged arc flux

Classification: SA FB 1 55 AC H5 (Flux EN ISO 14174)

Submerged arc flux · Oerlikon Welding

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Key features

  • Fully basic agglomerated submerged-arc welding flux for multiple pass welding
  • Consistent low temperature impact and CTOD toughness
  • Suitable for single and multiple arc systems

Standards and classifications

Flux EN ISO 14174SA FB 1 55 AC H5
Flux/wire AWS A5.17 AWS A5.23OE-S2 F7A6/F6P8-EM12K OE-SD3 F7A8/F7P8-EH12K OE-S2Mo F8A4/F8P4-EA2-A2 OE-SD3Mo F8A6/F8P6-EA4-A4 OE-S2 Ni2 F7A10/F7P10-ENi2-Ni2 OE-SD3 1Ni 1/4Mo F8A10/F8P10-ENi5-Ni5 OE-SD3 1Ni 1/2Mo F9A8/F9P8-EF3-F3 OE-SD3 2 NiCrMo F11A8/F11P5-EG-G OE-S2 CrMo1 F8P4-EB2R-B2 OE-S1 CrMo2 F8P2-EB3R-B3 OE-TIBOR22 F7A8-EG-G OE-TIBOR33 F8A6-EA2TiB-G

Chemical composition

  1. (WEIGHT %), TYPICAL, ALL WELD METAL
  2. Wire grade C Mn Si Cr Ni Mo Ti B
  3. OE-S2 0.07 0.9 0.2
  4. OE-SD3 0.07 1.6 0.3
  5. OE-S2Mo 0.07 0.9 0.2 0.5
  6. OE-SD3Mo 0.07 1.3 0.2 0.5
  7. OE-S2 Ni2 0.06 0.9 0.2 2.1
  8. OE-S2 Ni3 0.06 0.9 0.2 3.3
  9. OE-SD3 1Ni 1/4Mo 0.07 1.3 0.3 0.9 0.2
  10. OE-SD3 1Ni 1/2Mo 0.07 1.5 0.3 0.95 0.5
  11. OE-SD3 2NiCrMo 0.07 1.4 0.4 0.6 2.2 0.5
  12. OE-S2 CrMo1 0.07 0.9 0.3 1.1 0.5
  13. OE-S1 CrMo2 0.08 0.6 0.3 2.2 1
  14. OE-TIBOR22 0.06 1 0.1 0.3 0.013 0.0010
  15. OE-TIBOR33 0.07 1.2 0.3 0.5 0.15 0.012
  16. 372 www.lincolnelectric.eu

Mechanical properties

  1. , TYPICAL, ALL WELD METAL
  2. Wire grade Condition* Yield strength
  3. (MPa)
  4. Tensile strength
  5. (MPa)
  6. Elongation
  7. (%)
  8. Impact ISO-V (J)
  9. 0°C -40°C -60°C
  10. OE-S2 AW ≥405 480-550 ≥28 ≥160 ≥50
  11. OE-SD3 AW ≥460 530-630 ≥25 ≥180 ≥100 ≥70
  12. OE-SD3 PWHT 600°C/2h ≥400 490-590 ≥27 ≥200 ≥120 ≥90
  13. OE-SD2 Mo AW ≥470 550-680 ≥24 ≥120 ≥50
  14. OE-SD3Mo AW ≥550 610-670 ≥29 ≥110 ≥80
  15. OE-SD3Mo PWHT 620°C/1h ≥520 600-660 ≥27 ≥130 ≥60
  16. OE-S2 Ni2 AW ≥420 500-600 ≥24 ≥140 ≥100 ≥70
  17. OE-S2 Ni2 PWHT 600°C/2h ≥380 470-550 ≥26 ≥160 ≥130 ≥100
  18. OE-S2 Ni3 AW ≥480 560-660 ≥25 ≥160 ≥130 ≥100
  19. OE-SD3 1Ni
  20. 1/2Mo AW ≥550 650-750 ≥20 ≥120 ≥70 ≥47
  21. OE-SD3 1Ni
  22. 1/2Mo PWHT 600°C/2h ≥540 630-730 ≥22 ≥140 ≥90 ≥70
  23. OE-SD3 1Ni
  24. 1/4Mo AW ≥500 560-680 ≥22 ≥145 ≥70
  25. OE-SD3 1Ni
  26. 1/4Mo PWHT 600°C/2h ≥470 550-660 ≥24 ≥160 ≥70
  27. OE-SD3 2NiCrMo AW ≥720 760-900 ≥18 ≥69
  28. OE-SD3 2NiCrMo PWHT 580°C/2h ≥600 700-850 ≥19 ≥47
  29. OE-S2 CrMo1 PWHT 680°C/2h ≥380 530-630 ≥24 ≥180
  30. OE-S2 CrMo1 PWHT
  31. 920°C/air+710°C ≥310 430-530 ≥30 ≥200
  32. OE-S1 CrMo2 PWHT 720°C/8h ≥450 550-650 ≥22 ≥100
  33. OE-S1 CrMo2 PWHT
  34. 940°C/air+740°C ≥400 520-620 ≥22 ≥90
  35. OE-TIBOR22 AW ≥430 500-650 ≥20 ≥50
  36. OE-TIBOR33 AW ≥530 580-700 ≥20 ≥50
  37. *AW = As welded; PWHT = Post weld heat treatment

Flux characteristics

Current typeAC; DC+
Basicity (Boniszewski)3.1
Grain size (EN ISO 14174)2-20

Redrying 300-350°Cx2-4h

Versions and packaging

Item numberDiameter (mm)Net weight (kg)Packaging
W00028004225.0DRY BAG 25.0
W0004126421000.01000.0
W000280044400.0BIG BAG 400.0

Availability of individual item numbers is confirmed with the quotation.

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