308L-LF

Comparable specifications
ASME SFA A 5.9: ER308L
EN ISO 14343-A: 19 9 L
Werkstoff Nr.: 1.4316

Description and applications*
Austenitic stainless steel filler metal with a low carbon content, which reduces the possibilities of intergranular carbide precipitation, while increasing the resistance to intergranular corrosion without the use of stabilizers such as niobium or titanium.
Chemical analysis is kept under control, by lowering ferrite promoting elements and/or by raising austenite promoting elements, in order to achieve a ferrite number 4 – 8. Low amounts of ferrite are recommended if the weldment is to be in very low temperature service, as ferrite is not tough at low temperatures; also, if the weldment is to be used in high temperature service (higher than 1000 °F), the ferrite should be maintained at low levels because the ferrite becomes brittle at those temperatures.
Due to low ferrite, crack susceptibility may result: to reduce crack susceptibility, it is therefore recommended to use as low heat input as practical, a flat to convex bead shape, and maintain a suitable interpass temperature (e.g.300°C).

This grade may be used for:
• welding and overlay of base metals of similar composition such as AISI 304 and 304L when weld metal ferrite needs to be low;;
• applications in the cryogenic industry to obtain low impact toughness and high strength.

Weldable base materials*
* Illustrative, not-exhaustive list
All 300 series austenitic stainless steel

All-weld metal mech. properties*
* For reference only values
Tensile strength (Rm): ≥ 510 N/mm2
Elongation: ≥ 25%
Yield Strength (Rp0.2): ≥ 320 N/mm2
Charpy-V Impact (R.T.): ≥ 80 J

Chemical composition *For reference only values
CMnSiSPNiCrMoCuWRC FN
max1.000.30maxmax9.0019.50maxmax4
0.032.500.650.0200.03011.0021.000.500.508
Standard packaging data*
Welding
process
Product typeDia (mm)Packing typeWeight
kg (lbs)
Length
mm (inches)
GMAW **filler wire0.80 - 1.20 (0.030 - 0.047)spools BS300 / D30015 (33)n.a.
GTAW **filler rod1.60 - 4.00 (1/16 - 5/32)cardboard boxes / tubes5 (11)1000 (39.4)
SAW **filler wire1.60 - 4.00 (1/16 - 5/32)basket rims B45025 (55)n.a.
* Other sizes and packing types are available upon request
** GMAW: gas metal arc welding; GTAW: gas tungsten arc welding; SAW: submerged arc welding

Marking
Each filler rod for GTAW welding is durably marked with an identification traceable to the unique product type. Welding filler materials wound on spools or in coils are durably marked on the coil or spool with an identification traceable to the unique product type. The outside of each unit package is suitably labelled with at minimum the following data: grade, diameter, heat, lot no., classifications.
CE marking type-testing performed and available.
Customized labels are available upon request.

Type approvals
TUV Nord Kennblatt nr. 18881 (GMAW) TUV Nord Kennblatt nr. 18878 (GTAW)

Lot classification
All our productions fulfil the Class S3 requirements acc. to EN ISO 14344.

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