What diameter is the Lincoln T9CRMOVN-24 9CrMoV-N TIG Welding Wire, 2.4 mm, 5.0 kg Spool 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.

What shielding gas should I use with the Lincoln T9CRMOVN-24 9CrMoV-N TIG Welding Wire, 2.4 mm, 5.0 kg Spool?

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 Lincoln T9CRMOVN-24 9CrMoV-N TIG Welding Wire, 2.4 mm, 5.0 kg Spool?

The Lincoln T9CRMOVN-24 9CrMoV-N TIG Welding Wire, 2.4 mm, 5.0 kg Spool carries AWS ER90S-B9 classification, confirming it meets the American Welding Society's chemical composition and mechanical property requirements for that filler metal category. The AWS classification appears on the rod tube label and verifies the rod's chemistry for code-compliance welding procedures (WPS/PQR).

Lincoln T9CRMOVN-24 9CrMoV-N TIG Welding Wire, 2.4 mm, 5.0 kg Spool

Q: What is the Lincoln T9CRMOVN-24 9CrMoV-N TIG Welding Wire, 2.4 mm, 5.0 kg Spool used for?

TIG (GTAW) filler rods are used in the gas tungsten arc welding process, where the welder manually feeds the rod into the weld pool while maintaining the arc with the torch. TIG welding produces the highest quality, lowest spatter welds and is the process of choice for precision work on stainless, aluminum, titanium, and exotic alloys.

Q: How should I store the Lincoln T9CRMOVN-24 9CrMoV-N TIG Welding Wire, 2.4 mm, 5.0 kg Spool to maintain weld quality?

TIG filler rods are typically sold in 36 in lengths in 1 lb, 5 lb, 10 lb, and 25 lb tubes. Store rods in their original sealed tubes in a dry location. Stainless and nickel alloy rods are particularly moisture-sensitive — exposure to humidity can introduce hydrogen and cause porosity or cracking. Never leave opened rod tubes exposed to damp air.

SKU: T9CRMOVN-24

$238.26 ~~$246.75~~

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ER90S-B9

AWS / Classification: AWS A5.28M: ER90S-B9

Overview

Lincoln T9CRMOVN-24 9CrMoV-N TIG Welding Wire, 2.4 mm, 5.0 kg Spool

B9 (P91) alloyed steel designed to weld equivalent 'type 91' steels for improved long term creep resistance

Features

B9 (P91) alloyed steel: Modified 9CrMo designed to weld equivalent "type 91" 9CrMo steels modified with small additions of niobium, vanadium and nitrogen for improved long term creep resistance
Specifically designed for high integrity structural service at elevated temperature
Non-copper coated solid wire

Specifications

Feature	Value
LECO Diameter	3/32 in (2.4 mm)
LECO Package	5 kg Tube
Diameter (in)	3/32

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