Lincoln ED031856 Lincolnweld ST-100 Submerged Arc SAW Welding Flux, 60 lb Plastic Bag

Q: What wire diameter is the Lincoln ED031856 Lincolnweld ST-100 Submerged Arc SAW Welding Flux, 60 lb Plastic Bag available in?

Wire diameter selection is critical for matching deposition rate to base metal thickness. For mild steel MIG wire: .023 in for thin sheet (up to 3/16 in), .030 in for general fabrication, .035 in for the widest range of thicknesses, and .045 in+ for heavy plate. Check the product listing for available diameters of the Lincoln ED031856 Lincolnweld ST-100 Submerged Arc SAW Welding Flux, 60 lb Plastic Bag.

Q: What shielding gas or flux type does the Lincoln ED031856 Lincolnweld ST-100 Submerged Arc SAW Welding Flux, 60 lb Plastic Bag require?

The Lincoln ED031856 Lincolnweld ST-100 Submerged Arc SAW Welding Flux, 60 lb Plastic Bag is a flux-cored wire. Flux-core wire comes in two types: FCAW-G (gas-shielded, dual-shield) requires external shielding gas (typically 75% Ar/25% CO2 or 100% CO2) for full protection; FCAW-S (self-shielded, innershield) generates its own shielding from the flux core and requires no external gas. Check the AWS classification on the package to confirm which type this is.

Q: What is the deposit strength of the Lincoln ED031856 Lincolnweld ST-100 Submerged Arc SAW Welding Flux, 60 lb Plastic Bag?

Deposit tensile strength for mild steel solid MIG wire (ER70S-x) is approximately 70,000 PSI (483 MPa) minimum. For stainless filler metals, the deposit strength matches the base alloy grade. For flux-core wires, strength and chemistry vary by classification — refer to the AWS classification on the package for the exact mechanical property requirements.

Q: What spool size is the Lincoln ED031856 Lincolnweld ST-100 Submerged Arc SAW Welding Flux, 60 lb Plastic Bag available in?

The Lincoln ED031856 Lincolnweld ST-100 Submerged Arc SAW Welding Flux, 60 lb Plastic Bag is available in 60 lb spool/coil sizes. Smaller spools (2 lb, 10 lb) fit most hobby and light commercial feeders. Larger spools (33 lb, 44 lb) are standard for production welders with 12 in spool capacity. Drums and coils (250–600 lb) are used with bulk drum feeders for robotic and high-production applications.

Q: How should I store the Lincoln ED031856 Lincolnweld ST-100 Submerged Arc SAW Welding Flux, 60 lb Plastic Bag to prevent weld quality issues?

Store MIG wire in a clean, dry location away from humidity. Moisture absorption causes porosity in the weld — mild steel wire is particularly susceptible. If wire has been exposed to moisture, it may show surface rust; lightly rusted wire can sometimes be used but should be wiped before feeding. Flux-core and low-hydrogen electrodes require stricter moisture control than solid wire. Keep spools in their original packaging or sealed containers with desiccant packets when not in use.

SKU: ED031856

$225.65 ~~$228.60~~

Financing / Leasing Available

Welding Equipment & Industrial Supply Financing

WeldingMart has partnered with Clicklease to offer fast, flexible financing for welding equipment and industrial supplies. Get the equipment you need with affordable monthly payments tailored to your budget.

Whether you're purchasing a new MIG welder, TIG welder, engine-driven welder, or welding accessories, our financing solutions help you equip your shop without large upfront costs. We offer lease-to-own options on trusted brands like Lincoln Electric, Miller Electric, and more.

Apply in minutes and get a decision in seconds:

No hard credit check
No lengthy paperwork
Fast approvals

Why Choose Lease-to-Own Welding Equipment?

Lease-to-own financing gives you the flexibility to grow your business while preserving cash flow.

Key benefits include:

Low upfront cost – Start using equipment without a large initial investment
Flexible terms – Choose payment plans that fit your budget
Access to latest technology – Stay competitive with modern welding equipment
Ownership options – Buy the equipment, upgrade, or return it at the end of the lease

You also have the option to purchase your equipment early, including within the first 12 months.

Tax Advantages

In many cases, lease payments for business-use equipment may be tax-deductible. This can reduce your overall cost and free up capital for additional tools, supplies, or labor.

(Consult your tax advisor for details.)

Apply in Minutes

Financing is available 24/7, so you can apply whenever it’s convenient.

Application takes about 4 minutes
Instant decision in most cases
Immediate access to eDocs
Order your equipment right away

If approved for more than your initial request, you can easily adjust your financing to include additional items.

Need Help?

Have questions about financing or lease-to-own options?

Contact the WeldingMart team — we’re here to help you find the right solution for your business. 877-532-9353.

An alloy flux designed for to compensate for Cr in the wire that is not recovered in the weld deposit

Overview

Lincoln ED031856 Lincolnweld ST-100 Submerged Arc SAW Welding Flux, 60 lb Plastic Bag

LINCOLNWELD® ST-100™ has exceptionally good slag removal characteristics, even on niobium (columbium) bearing steels which normally cause slag to adhere to the weld metal.

Features

An alloy flux designed for use with solid stainless steel electrodes to compensate for chromium in the wire that is not recovered in the weld deposit
Excellent slag removal characteristics
Good performance on seamer applications

Specifications

Feature	Value
LECO Diameter	Flux
LECO Package	60 lb Plastic Bag

Includes

(1) 60 lb Plastic Bag

Reviews

Q&A

Product Overview