What is 309L stainless steel?

What is 309L stainless steel?

Type 309 is an austenitic chromium nickel stainless steel (. 08% max carbon). Type 309 is employed for parts requiring both corrosion and heat resistance and oxidation resistance up to 2000 °F. Strength at elevated temperatures is similar to that of 18-8 Stainless Steels.

What is 309 welding rod used for?

309 Tig Rod was designed to weld stainless steel to carbon steel and still have a strong ductile weld that can hold up to heating and cooling cycles.

What is the difference between 309 and 309L?

Alloy ER 309L is of similar composition as ER 309 except for the carbon content being lower than 0.03%. ER 309L is preferred over ER 309 for cladding over carbon or low alloy steels, as well as for dissimilar joints that undergo heat treatment.

What polarity is 309L?

reverse polarity
309L-16 is a titania type coating for either alternating current (AC) or direct current (DC) reverse polarity. 309L-15 is a lime type coating for use with direct current (DC) reverse polarity.

Can you weld 316 with 309?

316L (including ER316LSi) filler metal should be used with 316L and 316 base metals. Use 309L (including ER309LSi) when joining mild steel or low alloy steel to stainless steels, for joining dissimilar stainless steels such as 409 to itself or to 304L stainless, as well as for joining 309 base metal.

What temperature can stainless steel withstand?

Stainless steel have good strength and good resistance to corrosion and oxidation at elevated temperatures. Stainless steel are used at temperatures up to 1700° F for 304 and 316 and up to 2000 F for the high temperature stainless grade 309(S) and up to 2100° F for 310(S).

When to use 309l or 304L stainless steel?

Use 309L (including ER309LSi) when joining mild steel or low alloy steel to stainless steels, for joining dissimilar stainless steels such as 409 to itself or to 304L stainless, as well as for joining 309 base metal. CG-12 is the cast equivalent of 309.

Which is better alloy ER 309 or ER 309l?

ER 309L is preferred over ER 309 for cladding over carbon or low alloy steels, as well as for dissimilar joints that undergo heat treatment. Alloy ER 309/309L is a Stainless Steel TIG, MIG and SUB-ARC wire used for welding. For all stock availability contact Sales.

When to use 308l, 309l or 316L filler metal?

CG-12 is the cast equivalent of 309. Some 308L applications may be substituted with 309L filler metal, but 316L or 316 applications generally require molybdenum and 309L contains no molybdenum. Type 347 stainless steel filler metal is ideal for 347 and 321 base materials because it matches these stabilized grades.