Metrode Consumables Catalog

SUPERCORE 316NF
Rutile flux cored wire
Product description Flux cored wire made with an austenitic stainless steel sheath and rutile flux system designed primarily for
downhand welding.
Metal recovery is about 90% with respect to the wire.
Specifications AWS A5.22 (E316LT0-4) nearest equivalent
BS EN ISO 17633-A (T 18 16 5 NL R M 3) nearest equivalent
Approval TÜV
ASME IX Qualification QW432 F-No -, QW442 A-No -
Composition C Mn Si S P Cr Ni Mo N
(weld metal wt %) min -- 2.0 0.2 -- -- 17.0 14.0 2.5 0.08
max 0.04 3.0 1.0 0.025 0.03 19.0 16.0 3.5 0.20
typ 0.03 2.5 0.4 0.01 0.025 18 15 3 0.12
Maximum magnetic permeability 1.01.
All-weld mechanical As welded min typical
properties Tensile strength MPa 560 605
0.2% Proof stress MPa 300 410
Elongation on 4d % 30 37
Elongation on 5d % 25 34
Impact energy - 196°C * J -- 50
Lateral expansion - 196°C * mm 0.38 (15mils) 0.6
Hardness HV -- 185
* Useful impact properties are maintained down to 4°K (-269�C) and exceeds proposed ASME Code
recommendation.
Operating parameters Shielding gas: 80%Ar-20%CO2 at 20-25l/min. Proprietary gases may be used but argon should not exceed 80%.
The wire is suitable for use on 100%CO2 with some loss of cosmetic appearance and increased spatter.
Current: DC+ve parameters as below (for 100%CO2 increase voltage by ~3V):
ø mm amp-volt range typical stickout
1.2 130A-25V to 250A-32V 180A-29V 12-20mm
Packaging data Spools vacuum-sealed in barrier foil with cardboard carton: 12.5kg
The as-packed shelf life is virtually indefinite.
Resistance to moisture absorption is high, but to maintain the high integrity of the wire surface and prevent any
possibility of porosity, it is advised that part-used spools are returned to polythene wrappers.
Where possible, preferred storage conditions are 60% RH max, 18°C min.
Fume data Fume composition (wt %)
Fe Mn Ni Cr 3
Rev 03 03/07 DS: B-33 (pg 5 of 5)
Cr 6
Cu F OES (mg/m 3 )
12 18 2 4 4 < 1 6 1.2