ER 309L Stainless steel 1.4332 UNS30883

What is stainless steel ER 309L？

ER309L is similar in composition to E309L, with the minor difference of the carbon being lower than 0.03% in ER309L. The lower carbon content allows for a reduction in the likelihood of intergranular carbide precipitation without having to use a stabilizer such as titanium. Filler metals of this classification are commonly used for welding similar alloys in the wrought or cast form. They are also used to weld Type 304 and similar base metals where severe corrosion conditions exist requiring higher alloy weld metal. They are used in dissimilar metal welds, such as joining Type 304 to carbon steel. This grade may be used for joining and overlay of stainless steels similar in composition. ER309L is ideal for industrial and furnace boiler parts, annealing chambers, heat exchangers, and fused salt treatment installations.

Applications for ER 309L неръждаема стомана

• Sheet metal
• High pressure piping and tubing
• Use for welding dissimilar alloys in wrought or cast form
• Occasionally used for welding “18-8” base metals when severe corrosion conditions exist or dissimilar metals

ER 309L stainless steel Finished Products Form

Wires, Filler Wires, Coil Wires, Welding Wires

Equivalents of grade ER 309L

STANDARD	AWS	НАС	ОТ	Class	IN	BS
SS ER-309L	A5.9	S30883	1.4332	ER309L	23 12 Л	309S92

ER 309L Stainless steel 1.4332 UNS30883 Chemical Composition

Chemical Composition Limits
Weight%	В	Мн	и	Кр	в	С	П	мо	Cu
ER 309L	0.03 макс	1.0-2.5	0.30-0.65	23-25	12-14	0.03 макс	0.03 макс	0.75 макс	0.75 макс

Mechanical Properties 

Якост на опън (psi)	Сила на провлачване (psi)	Percent Elongation in 2”
87,000 psi (600 MPa)	59,000 psi (407 MPa)	40%

ER 309L Stainless steel 1.4332 UNS30883 Physical Properties

Плътност: Typically around 7.9 g/cm³, providing insight into mass per unit volume.

Точка на топене: Approximately 1400-1450°C (2552-2642°F), indicating solid to liquid transition temperature.

Electrical Conductivity: High, facilitating efficient welding processes.

Thermal Conductivity: Moderate, ensuring effective heat transfer during welding.

Ductility: Exhibits good ductility, allowing for flexibility in welding applications.

Magnetic Properties: Typically non-magnetic in the annealed condition, minimizing interference.

Corrosion Resistance: Offers excellent corrosion resistance, maintaining weld integrity in various environments.