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Oerlikon Welding · Submerged arc flux

OP 41TTW

Oerlikon Welding
OP 41TTW Submerged arc flux

Submerged arc flux · Oerlikon Welding

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Key features

  • Generates a high purity weld metal chemistry
  • Recommended with long post weld heat treatment
  • Widely used in Nuclear industy

Standards and classifications

ClassificationFlux EN SO 14174: SA FB 1 65 AC H5 Flux/wire AWS A5.17 AWS A5.23 OE-SD3 F7A8/F7P8-EH12K OE-SD3 Ni 1/4Mo F9A8/F8P8-EG OE-SD3 Ni 1/2Mo F9A8/F9P8-EF3-F3 OE-S2 CrMo1 F8P6-EB2R-B2 OE-S1 CrMo2 F9P2-EB3R-B3

Chemical composition

  1. (WEIGHT %), TYPICAL, ALL WELD METAL
  2. Wire grade C Mn Si Cr Ni Mo
  3. OE-SD3 0.1 1.6 0.4
  4. OE-SD3 Ni 1/4Mo 0.1 1.35 0.35 0.9 0.25
  5. OE-SD3 Ni 1/2Mo 0.1 1.5 0.4 0.95 0.5
  6. OE-S2 CrMo1 0.1 0.8 0.3 1.1 0.5
  7. OE-S1 CrMo2 0.1 0.6 0.3 2.1 1.0

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. -40°C -50°C -60°C
  10. OE-SD3 AW ≥460 480-660 ≥22 ≥47
  11. OE-SD3 PWHT 620°C/12h ≥400 510-650 ≥25 ≥47
  12. OE-SD3 PWHT 620°C/16h ≥400 500-650 ≥25 ≥47
  13. OE-SD3 Ni 1/4Mo AW ≥540 620-760 ≥22 ≥55
  14. OE-SD3 Ni 1/4Mo PWHT 620°C/2h ≥510 590-720 ≥22 ≥55
  15. OE-SD3 Ni 1/2Mo AW ≥600 650-760 ≥20 ≥47
  16. OE-SD3 Ni 1/2Mo PWHT 690°C/2h ≥590 650-760 ≥20 ≥47
  17. OE-SD3 Ni 1/2Mo PWHT 620°C/16h ≥540 620-760 ≥20 ≥47
  18. OE-S2 CrMo1 PWHT 690°C/1h ≥500 570-690 ≥20 ≥54 ≥27
  19. OE-S2 CrMo1 PWHT 690°C/26h ≥485 550-690 ≥22 ≥54 ≥47
  20. OE-S1 CrMo2 PWHT 690°C/8h ≥460 550-690 ≥20 ≥54
  21. OE-S1 CrMo2 PWHT 690°C/26h ≥450 540-690 ≥20 ≥54
  22. *AW = As welded; PWHT = Post weld heat treatment

Flux characteristics

Current typeAC, DC+
Basicity (Boniszewski)2.5
Grain size (EN ISO 14174)2-20

Redrying 300-350°C x 2-4h

Versions and packaging

Item numberNet weight (kg)Packaging
W00037408225.0DRY BAG 25.0

Availability of individual item numbers is confirmed with the quotation.

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