What shielding gas should I use with the Harris 630 Er630 17 4Ph Stainless Tig Gtaw Welding Rod 1 16 10lb Box 174Ph30?

TIG welding shielding gas selection: use pure argon (99.995% purity) for most TIG applications including steel, stainless, aluminum, and titanium. Helium additions (25–75% He/Ar mix) increase heat input and travel speed for heavy section work and aluminum welding where higher deposition is needed. Never use CO2 or mixed gases designed for MIG welding in TIG torches.

What is the AWS classification of the Harris 630 Er630 17 4Ph Stainless Tig Gtaw Welding Rod 1 16 10lb Box 174Ph30?

TIG filler rods carry an AWS classification (e.g., ER70S-2 for mild steel, ER308L for 304 stainless, ER4043 for aluminum) that specifies the chemical composition and mechanical properties of the deposited weld metal. Always verify the AWS class when writing or qualifying a Welding Procedure Specification (WPS) for code work.

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Harris 630 Er630 17 4Ph Stainless Tig Gtaw Welding Rod 1 16 10lb Box 174Ph30

Q: What is the Harris 630 Er630 17 4Ph Stainless Tig Gtaw Welding Rod 1 16 10lb Box 174Ph30 used for?

Stainless TIG rod is used for GTAW (TIG) welding of stainless steel base metals. Match the filler alloy to the base material: ER308L for 304/308 stainless, ER309L for dissimilar welds (stainless to carbon steel), ER316L for marine and chemical service, ER317L for higher corrosion resistance than 316L. Using the wrong filler can reduce corrosion resistance at the weld zone.

Q: What diameter is the Harris 630 Er630 17 4Ph Stainless Tig Gtaw Welding Rod 1 16 10lb Box 174Ph30 available in, and how do I choose the right size?

TIG filler rod diameter selection: match the rod diameter approximately to the base metal thickness. 1/16 in (1.6 mm) for thin sheet, 3/32 in (2.4 mm) for medium gauge, 1/8 in (3.2 mm) for heavy plate. Using a rod that is too large requires excessive heat to melt the rod and can cause overheating of thin base metal.

Q: How should I store the Harris 630 Er630 17 4Ph Stainless Tig Gtaw Welding Rod 1 16 10lb Box 174Ph30 to maintain weld quality?

The Harris 630 Er630 17 4Ph Stainless Tig Gtaw Welding Rod 1 16 10lb Box 174Ph30 is sold in 10 lb packages. TIG rods are 36 in long and sold by weight (1 lb, 5 lb, 10 lb, 25 lb tubes). Store rods in a dry location — TIG rods, especially low-hydrogen stainless and nickel alloy rods, are sensitive to moisture. Keep tubes sealed and store at room temperature with low humidity.

SKU: 174PH30

$233.25 ~~$323.40~~

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ER630 17-4PH stainless steel TIG GTAW welding rod 1/16 x 36 in. x 10 lb. box

Overview

Harris 630 ER630 17-4PH Stainless TIG GTAW Welding Rod 1/16 10lb Box - 174PH30

ER630 17-4 PH stainless steel TIG GTAW welding rod is a martensitic precipitation-hardening alloy that provides an outstanding combination of high strength, good corrosion resistance, good mechanical properties at temperatures up to 600°F (316°C), good strength in both base metal and welds, and short-time, low-temperature heat treatments that minimize warpage and scaling. ER630 (17-4PH) is an outstanding choice for applications requiring high strength and hardness, as well as corrosion resistance. It is more cost effective than many high nickel, non-ferrous alloys. ER630 (17-4PH) plate under 4 in. can be welded without pre-heating, but interpass up to 300°F (149°C) are commonly used. Conforms to ANSI/AWS A5.9.

Features

Stainless steel ER630 (17-4PH) TIG welding rod welds ASTM A-564 Type 630 alloys
Martensitic precipitation-hardening alloy that can also be used on stainless steel
High strength, good corrosion resistance and good mechanical properties
160,000 psi tensile strength (as welded)
145,000 psi yield strength (as welded)
5.0% elongation (as welded)
108 HRB Rockwell B hardness (as welded)
327 HB Brinell hardness (as welded)
Conforms to ANSI/AWS A5.9 & ASME SFA 5.9 ER 630, AMS 5825

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