Oerlikon Welding · Submerged arc flux

OP 128TT

Oerlikon Welding
OP 128TT Submerged arc flux

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

Submerged arc flux · Oerlikon Welding

Price on request

Prices for this catalogue are not published; every quotation is prepared for the requested quantity and delivery terms.

Key features

  • Highly basic flux for multiple passes applications
  • Easy slag removal even in narrow groove
  • High current carrying capacity making it suitable for high productivity procedures
  • Excellent behavior in multi arc and long stick-out process.

Standards and classifications

Flux EN ISO 14174SA FB 1 55 AC H5
Flux/wire AWS A5.17 AWS A5.23 EN ISO 14171-AOE-S2 F7A6-EM12K OE-SD2 F7A6-EM12K OE-SD3 F7A8/F7P8-EH12K S 46 6 FB S3Si OE-S2Mo F8A4-EA2-A2 OE-SD3Mo F8A6/F8P6-EA4-A4 OE-SD3 1Ni 1/4Mo F8A10-ENi5-Ni5 OE-SD3 1Ni 1/2Mo F9A8-EF3-F3 OE-S2 CrMo1 F8P4-E2R-B2 OE-S1 CrMo2 F8P2-EB3R-B3

Chemical composition

  1. (WEIGHT %), TYPICAL, ALL WELD METAL
  2. Wire grade C Mn Si Cr Ni Mo
  3. OE-S2 0.07 0.9 0.2
  4. OE-SD2 0.06 1.1 0.3
  5. OE-SD3 0.07 1.6 0.3
  6. OE-S2Mo 0.07 0.9 0.2 0.5
  7. OE-SD3Mo 0.08 1.4 0.2 0.5
  8. OE-SD3 1Ni 1/4Mo 0.07 1.4 0.3 0.9 0.2
  9. OE-SD3 1Ni 1/2Mo 0.07 1.5 0.3 0.95 0.5
  10. OE-S2 CrMo1 0.07 0.9 0.3 1.1 0.5
  11. OE-S1 CrMo2 0.08 0.6 0.3 2.2 1

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 -20°C -40°C -60°C
  10. OE-S2 AW ≥360 450-550 ≥28 ≥160 ≥100 ≥50
  11. OE-SD2 AW ≥400 480-550 >27 >100
  12. OE-SD3 AW ≥460 530-630 ≥25 ≥180 ≥100 ≥70
  13. OE-SD3 PWHT
  14. 620°C/1h ≥400 480-550 >24 ≥120 ≥100 ≥70
  15. OE-S2Mo AW ≥470 550-680 ≥24 ≥120 ≥100 ≥50
  16. OE-SD3Mo PWHT
  17. 620°C/1h ≥530 580-620 >24 ≥70 ≥47
  18. OE-SD3Mo AW ≥540 600-650 ≥22 ≥60 ≥30
  19. OE-SD3 1Ni
  20. 1/2Mo AW ≥550 650-750 ≥20 ≥120 ≥90 ≥70 ≥47
  21. OE-SD3 1Ni
  22. 1/4Mo AW ≥500 570-630 ≥22 ≥145 ≥70
  23. OE-S2 CrMo1 PWHT
  24. 680°C/2h ≥380 530-630 ≥24 ≥50 ≥80 >180
  25. OE-S1 CrMo2 PWHT
  26. 720°C/8h ≥450 550-650 ≥22 ≥30 ≥50 >100
  27. *AW = As welded; PWHT = Post weld heat treatment

Flux characteristics

Current typeAC; DC+
Basicity (Boniszewski)2.2
Grain size (EN ISO 14174)2-20

Versions and packaging

Item numberDiameter (mm)Net weight (kg)Packaging
W00037408325.0DRY BAG 25.0
W0003740851000.01000.0

Availability of individual item numbers is confirmed with the quotation.

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