AWS A5.22 E309LT – The Welding Warehouse, Inc.

E309LT

E309LT is a gas-shielded, flux cored, stainless steel electrode with a nominal weld composition of 24% chromium, 13% nickel and a maximum carbon content of 0.04%. Carbide precipitation is minimized and the weld metal more resistant to intergranular corrosion due to the wire’s low carbon content. Smooth arc transfer with minimal spatter. Produces finely rippled, even and well washed bead. Minimizes cleanup time due to freely peeling slag.

Applications

The welding of refinery and chemical processing equipment and furnace and auto exhaust parts is ideal for E309LT. This electrode is used to weld Type 309 stainless steel, to join carbon and low alloy steels to austenitic stainless steels, to weld 304 clad sheets and for the first layer cladding of carbon steel.

Specifications

E309LT0-1
E309LT0-4
E309LT1-1
E309LT1-4
E309LTX-X
(Also meets E309T0-1, E309T0-4 per AWS A5.22)
(Also meets E309T1-1, E309T1-4 per AWS A5.22)

Approvals

CWB E309LTO-1/4 (CO₂/C25)

ABS E309LT1-1, E309LT1-4

Shielding Gases

100% CO₂, 75-80% Ar/balance CO₂, 35-50 cfh

Welding Positions

Flat and Horizontal (0-X)

All Position (1-X)

Typical Deposit Composition (Flat and Horizontal)
Wt%	C	Mn	Si	Ni	Cr	N	WRC
CO₂	0.03	1.00	0.67	13.20	24.60	0.05	19FN

Typical Mechanical Properties (CO₂)* (Flat and Horizontal)
Tensile Strength	88,000 psi
Yield Strength	69,200 psi
Elongation	32%

* Strength levels will be slightly higher with Ar+20-25% CO₂

Typical Deposit Composition (All Position)
Wt%	C	Mn	Si	Ni	Cr	N	WRC
CO₂	0.03	0.95	0.80	12.50	24.20	0.05	18FN

Typical Mechanical Properties (CO₂)* (All Position)
Tensile Strength	85,100 psi
Yield Strength	69,900 psi
Elongation	38%

* Strength levels will be slightly higher with Ar+20-25% CO₂