0.035" Rods | McMaster-Carr

ER308LSi—ER308LSi rods are for 304 stainless steel. They have a higher silicon content than ER308L rods, so they flow more easily when melted and fill in more of the space between the two pieces of your weld. They’re also better where appearance matters because their welds are smoother.

ER309LSi—ER309LSi rods are for 309 stainless steel. They have a higher silicon content than ER309L rods, so they flow more easily when melted and fill in more of the space between the two pieces of your weld. They’re also better where appearance matters because their welds are smoother.

ER316L—ER316L rods are for 316 and 316L stainless steel.

ER316LSi—ER316LSi rods are for 316 stainless steel. They have a higher silicon content than ER316L rods, so they flow more easily when melted and fill in more of the space between the two pieces of your weld. They’re also better where appearance matters because their welds are smoother.

ER630—ER630 rods are for 17-4 PH stainless steel.

							1 lb.		5 lb.
	Dia.	Lg.	Welding Current Designation	Shielding Gas Req.	Shielding Gas Included	Approx. Rods per lb.		Pkg.		Pkg.
ER308L



		0.035"	36"	DCEN	Yes	No	100	7972A431	000000	7972A435	0000000


		ER308LSi



				0.035"	36"	DCEN	Yes	No	100	7972A159	00000	7972A175	000000


				ER309LSi



						0.035"	36"	DCEN	Yes	No	100	7972A443	00000	7972A472	000000


						ER316L



								0.035"	36"	DCEN	Yes	No	100	7972A441	00000	7972A445	000000


								ER316LSi



										0.035"	36"	DCEN	Yes	No	100	7972A687	00000	7972A699	000000


										ER630



												0.035"	36"	DCEN	Yes	No	100	7972A978	00000	7972A855	000000

For Joining Stainless Steel and Steel

Weld stainless steel with these rods.

ER309L—ER309L rods join different types of stainless steel. They’re also for use with steel.

							1 lb.		5 lb.
	Dia.	Lg.	Welding Current Designation	Shielding Gas Req.	Shielding Gas Included	Approx. Rods per lb.		Pkg.		Pkg.
ER309L



		0.035"	36"	DCEN	Yes	No	100	7972A921	000000	7972A922	0000000

For Joining Steel

Weld steel together with these rods.

ER70S-2—ER70S-2 rods are good for welding over rust and mill scale. They’re made from a blend that helps remove contaminants and imperfections from the weld pool.

ER70S-3—ER70S-3 rods are good for welding carbon steel in general fabrication applications. They have a low silicon content, so you can powder coat your welds.

ER70S-6—ER70S-6 rods are good for welding dirty, oily, and rusty steel. You can also use them to join misaligned pieces together. They create X-ray quality welds without air pockets for a smoother and more uniform welding bead than standard welding rods. Their high silicon content allows them to flow easily when melted, so they spread out to fill in the space between two pieces of your weld before hardening.

							1 lb.		5 lb.
	Dia.	Lg.	Welding Current Designation	Shielding Gas Req.	Shielding Gas Included	Approx. Rods per lb.		Pkg.		Pkg.
ER70S-2



		0.035"	36"	DCEN	Yes	No	100	7972A331	000000	7972A335	000000


		ER70S-3



				0.035"	36"	DCEN	Yes	No	100	7972A703	00000	7972A704	000000


				ER70S-6



						0.035"	36"	DCEN	Yes	No	100	7972A716	00000	7972A717	00000

For Joining Aluminum About For Joining Aluminum

Weld aluminum with these rods.

ER4043—ER4043 rods are for aluminum 43, 356, 3003, 3004, 5052, 6061, and 6063.

							1 lb.		5 lb.
	Dia.	Lg.	Welding Current Designation	Shielding Gas Req.	Shielding Gas Included	Approx. Rods per lb.		Pkg.		Pkg.
ER4043



		0.035"	36"	AC	Yes	No	325	7972A451	000000	7972A455	0000000

For Joining Copper to Steel

Join copper, copper-silicon, and copper-zinc to themselves and to steel. These rods are also good for welding uncoated or galvanized steel sheets.

							1 lb.		5 lb.
	Dia.	Lg.	Welding Current Designation	Shielding Gas Req.	Shielding Gas Included	Approx. Rods per lb.		Pkg.		Pkg.
ERCuSi-A



		0.035"	36"	AC, DCEN	Yes	No	100	7972A951	000000	7972A952	0000000

For Joining Nickel

Often used to repair pipe, these rods join nickel alloys to themselves and to stainless steel and steel.

ERNiCrMo-4—ERNiCrMo-4 rods resist corrosion, cracking, and pitting better than ERNiCr-3 rods because they have a higher molybdenum content.

							1 lb.		5 lb.
	Dia.	Lg.	Welding Current Designation	Shielding Gas Req.	Shielding Gas Included	Approx. Rods per lb.		Pkg.		Pkg.
ERNiCr-3



		0.035"	36"	DCEN	Yes	No	90	90552A110	0000000	90552A120	0000000


		ERNiCrMo-4



				0.035"	36"	DCEN	Yes	No	90	90552A220	000000	90552A230	000000

For Joining Cast Iron

Repair and join cast iron.

ERNi-CI—ERNi-CI rods create machinable welds.

ERNiFe-CI—ERNiFe-CI rods create 30% stronger welds than ERNi-CI.

							0.5 lb.		1 lb.
	Dia.	Lg.	Welding Current Designation	Shielding Gas Req.	Shielding Gas Included	Approx. Rods per lb.		Pkg.		Pkg.
ERNi-CI



		0.035"	36"	DCEN	Yes	No	90	7972A611	000000	7972A612	000000


		ERNiFe-CI



				0.035"	36"	DCEN	Yes	No	90	7972A615	00000	7972A616	00000

For Joining Titanium

Often used in the aircraft and petrochemical industries, these welding rods join titanium alloys. They can weld in high-temperature applications that require chemical resistance.

							0.5 lb.		1 lb.
	Dia.	Lg.	Welding Current Designation	Shielding Gas Req.	Shielding Gas Included	Approx. Rods per lb.		Pkg.		Pkg.
ERTi-2



		0.035"	36"	DCEN	Yes	No	180	7972A791	0000000	7972A792	0000000

Undersized Hardened Multipurpose M2 High-Speed Tool Steel Rods

These rods, also known as drill blanks, have an undersized diameter for machining your own drill bits. They're hardened for increased abrasion and impact resistance. M2 tool steel offers a nice balance of wear resistance and machinability. It has a high molybdenum content, which allows it to maintain sharp cutting edges even at elevated temperatures.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Dia.	Dia. Tolerance	Drill Bit Size	Lg.	Yield Strength	Hardness	Mechanical Finish		Each
0.035"	-0.0002" to 0"	65 Ga.	1 1/2"	Not Rated	Rockwell C60 (Extra Hard)	Precision Ground	3009A282	00000

Oversized Hardened Multipurpose M2 High-Speed Tool Steel Rods

Also known as reamer blanks, these rods have an oversized diameter that allows for finishing to your exact requirements. They're hardened for increased abrasion and impact resistance. M2 tool steel offers a nice balance of wear resistance and machinability. It has a high molybdenum content, which allows it to maintain sharp cutting edges even at elevated temperatures.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Dia.	Dia. Tolerance	Reamer Size	Lg.	Fabrication	Yield Strength	Hardness	Mechanical Finish		Each
0.035"	0" to 0.0002"	65 Ga.	1 1/2"	Hot Rolled	Not Rated	Rockwell C60 (Extra Hard)	Precision Ground	3023A382	00000

TIG Welding Rods for Joining Dissimilar Steels

Weld different steels together, such as steel and stainless steel. These rods also work with high-strength steel alloys.

For Joining Stainless Steel and Steel

							1 lb.		5 lb.
	Dia.	Lg.	Welding Current Designation	Shielding Gas Req.	Shielding Gas Included	Approx. Rods per lb.		Pkg.		Pkg.
ER312



		0.035"	36"	DCEN	Yes	No	100	7972A991	000000	7972A992	0000000

Fast-Deposit TIG Welding Rods

Make welds quickly with these fast-melting rods. They’re good for general purpose applications.

For Joining Steel

Image of Product. Front orientation. TIG Welding Rods. Fast-Deposit TIG Welding Rods.

							1 lb.		5 lb.
	Dia.	Lg.	Welding Current Designation	Shielding Gas Req.	Shielding Gas Included	Approx. Rods per lb.		Pkg.		Pkg.
ER70S-7



		0.035"	36"	DCEN	Yes	No	100	7972A551	000000	7972A552	0000000

Chemical-Resistant Ultra-Low-Friction PTFE Rods

These rods and discs are made of PTFE, a material that surpasses most plastic when it comes to chemical resistance and performance in extreme temperatures. In addition to resisting most solvents, they are an excellent electrical insulator. They are easy to machine and have a naturally slippery surface that makes them a good choice for bearings, gears, and parts that slide and roll.

Long Rods

	Fabrication	Min. Temp., ° F	Max. Temp., ° F	Flammability Rating	Lg., ft.		Per Ft.
White



	0.035"	Extruded	-300	500	UL 94 V-0	25	84935K751	00000


	0.035"	Extruded	-300	500	UL 94 V-0	100	84935K361	0000

High-Strength TIG Welding Rods

These rods create stronger welds than standard TIG welding rods.

For Joining Steel

Image of Product. Front orientation. TIG Welding Rods. High-Strength TIG Welding Rods.

ER80S-D2—ER80S-D2 rods create 15% stronger welds on steel than standard welding rods for steel. You can use them in applications requiring X-ray quality welds, such as in pressure tanks, gas pipes, and heat exchangers.

ER110S-1—ER110S-1 rods create 30% stronger welds on steel than standard welding rods for steel. They can be welded in temperatures down to -75° F.

ER120S-1—ER120S-1 rods create 40% stronger welds that also resist more impact than welds made with ER80S-D2 and ER110S-1 rods. They’re often used in lifting and handling machines.

							1 lb.		5 lb.
	Dia.	Lg.	Welding Current Designation	Shielding Gas Req.	Shielding Gas Included	Approx. Rods per lb.		Pkg.		Pkg.
ER80S-D2



		0.035"	36"	DCEN	Yes	No	100	7972A341	000000	7972A345	000000


		ER110S-1



				0.035"	36"	DCEN	Yes	No	100	7972A541	00000	7972A542	000000


				ER120S-1



						0.035"	36"	DCEN	Yes	No	100	7972A572	00000	7972A573	000000

For Joining Aluminum About For Joining Aluminum

Create 40% stronger welds than standard TIG welding rods for aluminum.

ER5356—ER5356 rods are for aluminum 5050, 5052, 5083, 5454, 5456, 5457, and 5458. They have excellent corrosion resistance to salt water.

							1 lb.		5 lb.
	Dia.	Lg.	Welding Current Designation	Shielding Gas Req.	Shielding Gas Included	Approx. Rods per lb.		Pkg.		Pkg.
ER5356



		0.035"	36"	AC	Yes	No	325	7972A461	000000	7972A465	0000000