ThePipingMart Blog Welding Electrodes AWS Class E308HT1-1/T1-4 Flux Core Welding Wire – Composition, Properties, and Uses

AWS Class E308HT1-1/T1-4 Flux Core Welding Wire – Composition, Properties, and Uses

AWS Class E308HT1-1/T1-4 Flux Core

Flux core welding is gaining popularity among welders for its efficiency and ease of use. It is especially useful when welding thick materials that require deep penetration. One of the most popular types of flux core wire is the AWS Class E308HT1-1/T1-4. It is widely used in various industries, including construction, shipbuilding, and manufacturing. This blog post will discuss the composition, physical and mechanical properties, uses, and heat treatment of AWS Class E308HT1-1/T1-4 Flux Core and its corrosion-resistant qualities.

What is AWS Class E308HT1-1/T1-4 Flux Core Welding Wire?

AWS E308HT1-1/T1-4 Flux Core is an American Welding Society (AWS) approved electrode that provides an economical option for welding stainless steel. It is a single pass, all-position flux cored arc welding (FCAW) designed for austenitic stainless steels such as 304 and 304L with adequate protection from oxidizing environments. The flux core of the electrode produces a slag that shields against oxidation. This means less slag removal and fewer time-consuming cleanups. Furthermore, the low hydrogen content in this electrode type helps prevent post-weld cracking problems associated with high-temperature applications. This makes it ideal for structural work or pressure vessels in petrochemical plants where heat and corrosion can be expected during operation.

E308HT1-1/T1-4 Flux Core Coated Wire Composition

The AWS Class E308HT1-1/T1-4 Flux Core welding  wire is a stainless steel wire of nickel, chromium, and iron. It contains less than 0.08% carbon and 19-21% chromium. The wire is shielded by gas, which helps to protect the welding area from contamination. The high nickel content in the wire makes it highly resistant to heat.

C Cr Ni Mo Mn Si P S Cu
0.04 18.0-21.0 9.0-11.0 0.75 0.5-2.5 1.0 0.04 0.03 0.75

E308HT1-1/T1-4 Flux Core Welding Wire Physical Properties

The AWS Class E308HT1-1/T1-4 Flux Core welding electrode has a diameter of 0.045 inches and is available in 33-pound spools. This wire is suitable for welding in all positions, including vertical and overhead. It has a maximum deposition rate of 13 pounds per hour, which ensures efficient welding. The wire has excellent arc stability, which makes it easy to start and maintain the arc.

E308HT1-1/T1-4 Flux Core Coated Wire Mechanical Properties

The AWS Class E308HT1-1/T1-4 Flux Core welding  alloy has exceptional mechanical properties, including high tensile strength and good elongation. The wire can withstand impacts and vibrations without cracking or breaking. It has good ductility and can be used for welding dissimilar metals, including stainless steel to carbon steel.

Tensile Strength, kpsi: 75 min
Yield Strength, kpsi: *NS
Elongation %: 30 min

E308HT1-1/T1-4 Flux Core Welding Wire Trade Name

Class UNS Oxford Alloys BOHLER
E308HT1-1/T1-4 W30831 Alloy 308HT1-1/4 BOHLER E 308 H PW – FD ( E308HT1-4)

E308HT1-1/T1-4 Flux Core Coated Wire Parameters

Diameter Process Volt Amps Shielding Gas
in (mm)
 .035  (.9) GMAW   26-27 150-165 100%CO2
 .045  (1.14) GMAW  26-28 160-200 100%CO2
 .063  (1.6) GMAW  27-28 215-250 100%CO2

E308HT1-1/T1-4 Flux Core Welding Wire Uses

The AWS Class E308HT1-1/T1-4 Flux Core electrode is widely used in various industries, including aerospace, automotive, and food processing. It is an ideal choice for welding stainless steel and carbon steel joints. The wire is also suitable for joining stainless steel to itself. It is commonly used to construct storage tanks, pressure vessels, and pipelines.

E308HT1-1/T1-4 Flux Core Coated Wire Heat Treatment

The AWS Class E308HT1-1/T1-4 Flux Core filler wire  is not susceptible to heat treatment. It is used in the as-welded condition, making it easy for on-site or field welding applications. However, following the manufacturer’s preheat and interpass temperature instructions is essential to ensure good welding results.

E308HT1-1/T1-4 Flux Core Welding Wire Corrosion Resistance

The AWS Class E308HT1-1/T1-4 Flux Core filler metal is highly resistant to corrosion, especially in alkaline and acidic environments. It has excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. The wire is suitable for welding in harsh environments, including marine and chemical processing industries.

Conclusion:

The AWS Class E308HT1-1/T1-4 Flux Core is a reliable and efficient wire suitable for welding various materials. Its exceptional mechanical and physical properties and corrosion-resistant qualities make it highly versatile. It is ideal for welding in various industries, including construction, shipbuilding, and manufacturing. Proper usage and handling of the wire, coupled with adherence to the manufacturer’s guidelines, can ensure optimal welding results. If you’re looking for a high-performing flux core wire, consider the AWS Class E308HT1-1/T1-4 Flux Core.

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