INOX R 25/14 NC
Description and application:
Rutile, low carbon electrode for welding analogous, heat resistant steels and steel castings. Scaling resistant up to
1000°C. Suitable for joining dissimilar steels (unalloyed steels with stainless steels), welding steam boiler
construction, hardening plants, the crude oil industry and the ceramics industry.
Base materials:
Austenitic, ferritic-pearl. steels DIN: W.Nr.: AISI/ASTM:
Chemical corr.resistant steel: X 15 CrNiSi 20 12 1.4828 309
X 7 CrNi 23 14 1.4833
X 10 CrAl 7 -
X 10 CrAl 13 1.4724 405
X 10 CrAl 18 1.4742 -
Alloyed steel castings: G-X 30 CrSi 6 1.4710 -
G-X 40 CrSi 17 1.4740 -
G-X 40CrNiSi 22 9 1.4826
-
Heat treatment:
Preheating and interpass temperatures for ferritic steels 200 - 300°C.
Coating type: Typical all weld metal properties:
Rutile
Chemical composition, wt %:
Welding current:
C Si Mn Cr Ni
AC ≤ 0.04 ≤ 0.9 0.7 23 13
DC +
Welding positions:
Mechanical properties:
2
Yield strength R / Rp : > 400 MPa(N/mm )
2
Redrying temperature: Tensile strength Rm: > 550 – 650 MPa(N/mm
)
300°C / 2h
Elongation A5: > 30 %
Ferrite content: FN ≈ 15 Impact energy KV : > 47 J (+20°C)
Welding and packing data:
Welding parameters Packing
φ
Length
Current
Weight/
Weight/ Weig
ht/
mm
Approvals: mm A packet carton 1000 pcs
kg kg kg *
2 250 40 – 55 3.5 14
/
2.5 300 40 – 80 4 16 17.7
3.25 350 70 – 100 4.5 18 35.7
4 350 110 – 160 4.5 18 54.9
5 350 160 - 230 4.5 18 84.9
* approximate data