304 / 301 Stainless Steel Sheet — 0.01mm to 2.5mm Thick | 100, 200, 300mm Sizes

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304 / 301 Stainless Steel Sheet — 0.01mm to 2.5mm Thick | 100, 200, 300mm Sizes

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Product material: 304 Stainless Seel

Thickness: 0.02mm

Width*Length & Packing Qty: 200mm×300mm & 1pcs

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$16.93 USD

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Stainless Steel Sheet 304 & 301 — Precision Flat Plate for Fabrication, Shimming & DIY Projects

Whether you're a machinist chasing a 0.05mm shim gap, a fabricator cutting enclosure panels, or a DIYer building a custom bracket, finding flat stainless steel sheet in the exact thickness you need — without ordering a full industrial roll — is a constant frustration. These 304 and 301 stainless steel flat sheet plates are stocked in an unusually wide range of thicknesses and cut sizes, so you can order exactly what your project calls for.

Each listing covers a single flat sheet (1 pc per order) in your chosen combination of material grade, thickness, and cut size. Material options are 304 stainless steel and 301 stainless steel. Thickness ranges from 0.01mm (≈0.0004") up to 2.5mm (≈0.098"), covering ultra-thin foil-gauge all the way to structural sheet. Available cut sizes are 100×100mm (≈3.94"×3.94"), 100×300mm (≈3.94"×11.81"), 200×300mm (≈7.87"×11.81"), and 300×300mm (≈11.81"×11.81"). Edges are sheared flat; surfaces have a standard mill finish.

Typical use cases include precision shimming and alignment in machinery and automotive assemblies, custom sheet metal fabrication for enclosures and brackets, gasket blanks and heat shields in HVAC and appliance repair, and craft or hobby projects requiring a corrosion-resistant flat metal substrate. Long-tail applications such as "thin stainless steel shim stock," "stainless steel flat bar stock for DIY," and "304 stainless sheet cut to size" are all well served by this range.

ℹ️ Grade Compatibility: 304 grade is compatible with most general fabrication, food-contact, and outdoor applications. 301 grade is suited for spring-temper and high-tensile applications. Both grades accept standard TIG/MIG welding and HSS drilling.

⚠️ Thickness Tolerance Note: Ultra-thin sheets (0.01–0.05mm) are foil-grade. Verify your required tolerance before ordering — contact us to confirm if your application is precision-critical.

✅ Key Features of These Stainless Steel Sheet Plates

📐 Wide Thickness Range — Covers 0.01mm foil-gauge through 2.5mm structural sheet in a single product line, eliminating the need to source from multiple suppliers for thin stainless steel shim stock or heavier flat plate.
🔩 Two Alloy Grades Available — Choose 304 for corrosion resistance and general-purpose fabrication, or 301 for higher tensile strength and spring-back in clips, springs, and flex components.
✂️ Pre-Cut to Usable Sizes — Available in four cut dimensions from 100×100mm up to 300×300mm, reducing material waste compared to buying full-length stainless steel sheet stock.
🌧️ Corrosion-Resistant Finish — Both grades resist oxidation and atmospheric moisture, making them suitable for outdoor brackets, marine-adjacent hardware, and humid workshop environments.
🔧 Weldable & Machinable — Compatible with TIG, MIG, and spot welding; drillable with HSS or carbide bits. Suitable for custom sheet metal fabrication for enclosures and panels without special tooling.
📦 Single-Piece Ordering — Each variant ships as 1 pc, so you can order just the thickness and size you need for prototyping or repair without committing to bulk quantities.

📐 Technical Specifications — Stainless Steel Flat Sheet

Material Grades	304 Stainless Steel / 301 Stainless Steel
Thickness Range	0.01mm (≈0.0004") — 2.5mm (≈0.098")
Available Thicknesses	0.01, 0.02, 0.025, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.12, 0.15, 0.18, 0.2, 0.25, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.2, 1.5, 1.8, 2, 2.5 mm
Cut Sizes (W × L)	100×100mm (≈3.94"×3.94") / 100×300mm (≈3.94"×11.81") / 200×300mm (≈7.87"×11.81") / 300×300mm (≈11.81"×11.81")
Surface Finish	Mill finish (standard); no polishing or coating applied
304 Tensile Strength (typical)	≈515 MPa (75,000 psi)
304 Yield Strength (typical)	≈205 MPa (30,000 psi)
301 Tensile Strength (typical)	Higher than 304; see variant options for grade-specific data
Weldability	TIG, MIG, spot welding — compatible
Machinability	HSS or carbide tooling recommended
Quantity per Order	1 pc per variant
Country of Origin	Contact us to confirm
Applicable Standards	See variant options / Contact us to confirm

❓ Frequently Asked Questions

How do I choose the right thickness for my project?

For light shielding, gaskets, or shimming, thicknesses of 0.01–0.1mm are typically sufficient. For structural brackets, enclosures, or load-bearing panels, 0.3–1mm is generally recommended. Thicknesses above 1mm (1.2–2.5mm) are suited for heavier fabrication work. When in doubt, go one step thicker than your minimum requirement.

What is the difference between 304 and 301 stainless steel?

304 stainless steel offers excellent corrosion resistance and is the most widely used grade for general fabrication, food-contact surfaces, and outdoor applications. 301 stainless steel has a slightly higher carbon content, which gives it greater tensile strength and spring-back — making it a common choice for springs, clips, and parts that require elasticity.

Can these sheets be used outdoors or in humid environments?

Yes. Both 304 and 301 grades are generally suitable for outdoor and humid environments. 304 in particular offers strong resistance to oxidation and most atmospheric corrosion. For marine or high-chloride environments, 316 grade is typically recommended instead.

Are these sheets weldable and machinable?

Yes. Both 304 and 301 stainless steel sheets are weldable using standard TIG, MIG, or spot welding methods. They can also be cut with shears, laser cutters, or angle grinders, and drilled with HSS or carbide bits. Work hardening is more pronounced in 301, so slower feed rates are generally advised when machining that grade.

How do I convert the sheet dimensions to inches?

Use the conversion: 1mm ≈ 0.0394 inches. For example: 100mm ≈ 3.94", 200mm ≈ 7.87", 300mm ≈ 11.81". For thickness: 0.5mm ≈ 0.020", 1mm ≈ 0.039". If you need a gauge equivalent, 0.5mm is approximately 24 gauge and 1mm is approximately 18 gauge in standard sheet metal gauge.

Which thickness should I order for shimming or precision gap filling?

For shimming applications, the thickness tolerance is the critical factor. Ultra-thin options (0.01–0.05mm) are typically used for precision shimming in machinery, bearings, and alignment tasks. We recommend measuring your gap with a feeler gauge first, then selecting the closest available thickness. Contact us to confirm tolerance specs if your application is critical.

What load or strength can these sheets handle?

304 stainless steel has a typical tensile strength of around 515 MPa (75,000 psi) and yield strength of approximately 205 MPa (30,000 psi). 301 generally has higher tensile strength due to its composition. Actual load capacity depends on sheet thickness, support span, and application — consult an engineer for structural load calculations.

🛒 Select your material, thickness, and size above, then add to cart — ships from our US warehouse.

304 / 301 Stainless Steel Sheet — 0.01mm to 2.5mm Thick | 100, 200, 300mm Sizes

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Beschreibung

Stainless Steel Sheet 304 & 301 — Precision Flat Plate for Fabrication, Shimming & DIY Projects

✅ Key Features of These Stainless Steel Sheet Plates

📐 Technical Specifications — Stainless Steel Flat Sheet

❓ Frequently Asked Questions

304 / 301 Stainless Steel Sheet — 0.01mm to 2.5mm Thick | 100, 200, 300mm Sizes

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