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ESAB

OK 61.25

OK 61.25

OK 61.25 is a basic coated, stainless-steel electrode of the 308H type. The electrode is designed for high-temperature applications in petrochemical and chemical process plants. Ferrite will transform to brittle phases when exposed to higher temperatures. However, due to the low ferrite content level (max. FN 5), the amount of embrittlement which can occur in the weld metal is rather limited and controlled. The maximum temperature it can be exposed to is 800°C. It is not suitable for applications exposed to creep.

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Specifikacijos


Typical Tensile Properties

PWHT 720°C 1000h
Apsauginės dujos Elongation Tensile Strength Yield Strength
AWS 45 % 570 MPa 300 MPa
As welded
Apsauginės dujos Elongation Tensile Strength Yield Strength
AWS 45 % 600 MPa 430 MPa

Čarpio V formos įrantos testo savybės

PWHT 720°C 1000h
Apsauginės dujos Impact Value Testing Temperature
AWS 100 J 20 °C
As welded
Apsauginės dujos Impact Value Testing Temperature
AWS 95 J 20 °C
AWS 83 J -18 °C

Nusėdimo duomenys

Amperai Fusion time per electrode at 90% I max kg weld metal/kg electrodes Number of electrodes/kg weld metal Nusėdimo greitis Skersmuo Voltai
55-85 A 47 sec 0.62 kg 93 0.9 kg/h 2.5 x 300 mm 23 V
75-110 A 66 sec 0.59 kg 49 1.2 kg/h 3.2 x 350 mm 23 V
80-160 A 68 sec 0.61 kg 32 1.8 kg/h 4.0 x 350 mm 24 V

Suvirinimo metalo analizė

Mn
MnCSiFerrite FNNiNCr
1.7 % - - - - - -
C
MnCSiFerrite FNNiNCr
- 0.06 % - - - - -
Si
MnCSiFerrite FNNiNCr
- - 0.3 % - - - -
Ferrite FN
MnCSiFerrite FNNiNCr
- - - 4 % - - -
Ni
MnCSiFerrite FNNiNCr
- - - - 9.8 % - -
Cr
MnCSiFerrite FNNiNCr
- - - - - - 18.8 %

Patvirtinimai: NAKS/HAKC, 2.5-3.2 mm, Seproz, UNA 272580
Klasifikacijos: EN ISO 3581-A, E 19 9 H B 2 2, SFA/AWS A5.4, E308H-15

Approvals are based on factory location. Please contact ESAB for more information.


Alloy Type: Austenitic CrNi
Coating Type: Basic
Ferrite Content: FN 2-5
Welding Current: DC+
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