Brass Shims: ASTM B36 C260 Brass Shim Sheets and Rolls

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Brass Shims Supplier and Manufacturer in India

Brass Shims

Brass shims are machined thin metal sheets made to tight tolerances of copper-zinc alloys and are used throughout industry to fill in applications, align parts, and hold parts and provide correct spacing in mechanical assemblies. Their superior electrical and thermal conductivity, good formability, good corrosion resistance and high machinability are some of the reasons why they are preferred over their stainless steel counterparts.

Aashish Metal and Alloys is ranked among the most reliable manufacturers and suppliers of brass shim in India with over 3000 varieties of products of brass shim of all different grades, sizes and finishes. We have a variety of products, such as Brass Shim Sheets, Brass Shim Rolls, Brass Foil Shims, Brass Shim Stock, and Custom Precut Brass Shims all made of high-grade copper-zinc alloy to ASTM B36 / ASME SB36 standards. We ship to over 52 countries around the world.

During the fabrication of our brass shims, quality controls are strictly implemented to have uniform thickness, smooth surface finish and uniform mechanical properties. They come in standard and custom sizes, with foil thicknesses of 0.05mm, and sheet thicknesses of 3.0mm. Ready stocks are kept in widths of up to 1500mm and various lengths.

Browse our full range: View all Shims and Shim Plates

Types Of Brass Shims

Explore our selection of brass shims, which come in a variety of shapes to accommodate a range of industrial uses. Find the ideal solution for your requirements, whether it’s shim sheets or brass shim stock.

C260 Brass Shims
Brass Shim Stock
Brass Shim Stock
Brass Shim Sheet
Brass Shim Sheet
Brass Shim
Brass Shims

Brass Shims Specifications-ASTM B36 / ASME SB36

Our brass shims conform to ASTM B36 and ASME SB36, the primary standards for brass plate, sheet, strip and rolled bar. The table below summarises the full range of specifications maintained in stock.

ParameterDetails
StandardASTM B36 / ASME SB36 (Brass Plate, Sheet, Strip and Rolled Bar)
GradesC21000, C22000, C22600, C23000, C24000, C26000, C26800, C27200
Thickness0.05mm to 3.0mm (and above on request)
Width3.2mm to 1500mm
Length2000mm, 2440mm, 3000mm, 5800mm, 6000mm and custom
Temper / ConditionHR (Hot Rolled), CR (Cold Rolled), Annealed, Half Hard, Quarter Hard, Spring Hard
FinishNo.1, 2B, 2D, 2H, 2R, No.4, Hairline, Scotch Brite, Satin, No.8, BA
HardnessSoft, Hard, Half Hard, Quarter Hard, Spring Hard
FormShim Sheet, Shim Roll, Foil Shim, Precut Shim, Custom Cut

C260 Cartridge Brass: the Most Common Brass Shim Grade

C26000 (Cartridge Brass) with the nominal composition of 70% copper and 30% zinc is the most widely used brass shim grade across all industries. It provides the optimum combination of cold-working ability, deep-draw formability, moderate tensile strength and resistance to corrosion in water, fuel oil, gasoline, kerosene and alcohol environments.

Key technical properties of C260 Cartridge Brass shims:

  • Electrical conductivity: 28% IACS — approximately 14x more conductive than SS 304 (approx 2% IACS), making C260 brass the preferred shim material for electrical panel spacers and bus bar applications
  • Machinability rating: Excellent — brass machines cleanly and is far easier to cut, drill and form than stainless steel
  • Temper options: HR (Hot Rolled), CR (Cold Rolled), Annealed, Half Hard and Spring Hard
  • Thickness range: 0.05mm foil to 3.0mm sheet (thicker plate on request)
  • Not suitable for ammonia or ammonium salt environments due to risk of stress corrosion cracking — use SS or copper-nickel shims for such conditions

C260 Chemical Composition

Element Cu (Copper) Fe (Iron) max Pb (Lead) max
Min/Max 68.5% to 71.5% 0.05% 0.07%
Nominal 70.0% Zn: Remainder (30%)

Full Brass Grade Table -- C21000 to C27200

Aashish Metal and Alloys stocks all eight standard UNS copper-zinc brass grades used in shim applications. The C26000 Cartridge Brass row is highlighted as the lead shim grade.
UNS Grade Common Name Composition Key Property / Typical Use
C21000 Gilding Metal 95% Cu + 5% Zn Excellent corrosion resistance, decorative applications
C22000 Commercial Bronze 90% Cu + 10% Zn Good corrosion resistance, architectural use
C22600 Jewelry Bronze 87.5% Cu + 12.5% Zn Good formability, jewelry and decorative parts
C23000 Red Brass 85% Cu + 15% Zn Excellent corrosion resistance in water and steam
C24000 Low Brass 80% Cu + 20% Zn Good ductility, flexible applications
C26000 * Cartridge Brass 70% Cu + 30% Zn Most common shim grade, best formability and corrosion resistance
C26800 Yellow Brass 65% Cu + 35% Zn Good machinability, general purpose use
C27200 Yellow Brass 63% Cu + 37% Zn Cost-effective, good mechanical properties
* C26000 is the most commonly specified brass shim grade for general industrial use.

Brass vs Stainless Steel vs Copper Shim -- Material Comparison

The table below is designed to help maintenance engineers and procurement teams select the correct shim material for their application. The key differentiator for brass is its electrical conductivity, which is approximately 14 times higher than SS 304.

AlloyBrass C260SS 304Copper C11000
Composition70% Cu + 30% Zn18% Cr + 8% Ni99.9% Cu
Conductivity (IACS)28%2%100%
Corrosion ResistanceGoodExcellentGood
MachinabilityExcellentFairFair
Best Used ForElectrical, architectural, moderate corrosionChemical, high temp, food processingMaximum conductivity, heat sinks
Internal LinkBrass Shims (this page)SS 304 ShimsCopper Shims

Also compare: Stainless Steel Shims | SS 316 Shims | SS 304 Shims

Related Types of Brass Shims

We supply brass shims in multiple product forms to meet different engineering requirements.

  • C260 Cartridge Brass Shims — the most commonly stocked grade for general industrial and electrical applications
  • Brass Shim Stock — available in rolls and flat sheets for maintenance and workshop use
  • Brass Shim Sheet — flat precision cut sheets in all standard and custom thicknesses
  • Brass Foil Shims — extremely thin shims from 0.05mm for high-precision instrumentation
  • 85/15 Brass Shims (C23000 Red Brass) — 85% copper + 15% zinc grade with enhanced corrosion resistance for water and steam service
  • Brass Hard Shims and Spring Hard Shims — temper-treated for applications requiring higher hardness
  • Brass Shim Rolls — continuous roll stock for production and stamping operations

Looking for precision cut shapes? See Precut Shims — Custom Cut Brass Shims

Brass Shims Dimensions

Our brass shims are available in the following standard dimensions with slot widths and slot depths for precut variants.
Width Length Slot Width Slot Depth
2″ 2″ 1-1/4″ 1-9/32″
3″ 3″ 1-5/8″ 2-1/8″
4″ 4″ 2″ 2-3/4″
5″ 5″ 2-1/2″ 3-5/8″
6″ 6″ 5/8″ 4″
8″ 8″ 7/8″ 6″

Brass Shim Weight Chart (kg per m2 by Thickness)

The weight table below shows brass shim weight per square metre across standard sheet sizes and thicknesses, allowing accurate material estimation and freight calculation.

Thickness (mm)2000×1000 (kg/m2)2500×1250 (kg/m2)3000×1500 (kg/m2)Wt per unit
0.182.881.44
0.203.201.60
0.223.521.76
0.243.841.92
0.274.322.16
0.284.482.24
0.325.122.56
0.386.083.04
0.447.0411.003.52
0.508.0012.504.00
0.568.9614.004.48
0.6310.0815.755.04
0.7512.0018.756.00
0.8814.0822.007.04
1.0016.0025.0036.008.00
1.1318.0828.2540.009.04
1.2520.0031.2545.0010.00
1.3822.0334.5050.0072.00
1.5024.0037.5054.0012.00
1.7528.0043.7563.0014.00
2.0032.0050.0072.0016.00
2.2536.0056.2581.0018.00
2.5040.0062.5090.0020.00
2.7544.0068.7599.0022.00
3.0048.0075.00108.0024.00
3.2552.0081.25117.0026.00
3.5056.0087.50126.0028.00
3.7560.0093.75135.0030.00
4.0064.00100.00144.0032.00
4.2568.00106.25153.0034.00
4.5072.00112.50162.0036.00
5.0080.00125.00180.0040.00
5.5088.00137.50198.0044.00
6.0096.00150.00216.0048.00
6.50104.00162.50234.0052.00
7.00112.00175.00252.0056.00
7.50120.00187.50270.0060.00
8.00128.00200.00288.0064.00

C260 Brass Sheet and Plate Weight Chart (Imperial)

Thickness (in)Width (in)Length (in)Lbs per sq ftApprox Lbs per Sheet
0.02036960.921.3
0.02536961.126.6
0.03236961.434.1
0.04036961.842.6
0.05036962.253.2
0.062536962.868.1
0.08036963.685.2
0.09336964.199.0
0.12536965.5133.1
0.187536968.3199.6
0.250369611.1266.1
0.37536.596.516.6399.2
0.50036.596.522.2532.2

Brass Shims Quality and Test Reports

Every batch of brass shims supplied by Aashish Metal and Alloys is backed by full traceability documentation. Our quality assurance programme includes third-party inspection and mill certification from approved mills including Jindal, Bahru, Posco Korea, Columbus, Acerinox, Aperam, Tisco, Nisshin and Nippon.

Document / TestDetails
Mill Test CertificateChemical composition and mechanical property report per heat
Third Party InspectionAvailable on request from approved agencies
EN 10204 / 3.1BMaterial test report with mill certification
100% Radiography TestFor critical structural applications on request
Raw Materials CertificateOrigin and composition of input copper-zinc alloy

We Supply a Comprehensive Range of Brass Shims

Aashish Metal and Alloys is a PED Approved Manufacturer and Supplier offering more than 3000 varieties in all types of brass and all sizes, exported to more than 52 countries worldwide.
Brass Shim Kit Stockholder Brass Shim Strips Distributor
Hot Rolled Brass Shims Brass Shims Supplier
Hard Brass Shims Brass Cut Shims
Brass Ready Cut Shims Custom Brass Shims Suppliers in India
Brass Mirror Polish Shims Brass Polished Shims
Brass Shim Coil Wholesaler Brass UNS C26800 Shims Exporter
Brass Shim Rings Dealer Brass C260 / C26000 Shim
Brass CR Shims Stockist Brass Shim Supplier
Cold Rolled Brass Shims Thin Brass Shims Exporter
Brass C23000 Shims Exporter Brass C21000 Shims Manufacturer
Brass Round Shims Brass HR Shims Stockholder
Brass Shims Stock Brass C330 / C33000 Shims
Brass Hard Shims Brass C27200 Shim
Brass Cladding Shims Supplier Brass Shims Distributor

Applications of Brass Shims

Brass shims are trusted across demanding industries where precise spacing, vibration damping, electrical conductivity and corrosion resistance are all required simultaneously.

IndustryApplication
Automotive and AerospacePrecision alignment shims for engine components, transmission housings and airframe assemblies where dimensional accuracy is critical
Chemical IndustryGap-filling shims in pump and valve assemblies handling fuel oil, gasoline, kerosene and alcohol-based fluids
Heat ExchangerThin brass foil shims used to set tube-sheet clearances and correct alignment in heat exchanger bundles
Food Processing EquipmentCorrosion-resistant spacing shims for food-grade machinery where hygiene and non-reactive surfaces are required
Electrical and ElectronicsElectrical panel shims and bus bar spacers leveraging 28% IACS conductivity, approximately 14x higher than SS 304
Architectural Trim and MoldingDecorative and structural shims for cladding, trim and facade systems where appearance and corrosion resistance matter
Marine ApplicationsCorrosion-resistant brass shims for sea water service pipework, flanges and deck fittings
Heavy EngineeringAlignment shims for large machinery bases, compressors, turbines and industrial pump sets


Brass shims are also widely used as Alignment Shims in precision machinery levelling and base-plate setting.

Brass Shims Price List

Brass shim prices vary by grade (C21000 to C27200), thickness, width, temper and order quantity. Aashish Metal and Alloys maintains ready stock of all standard items and can export at competitive prices to any destination.

To request the latest brass shim price list and ready stock information, click the Request a Quote button, email export@aashishmetal.com or call +91-22-66362223 / 66394926.

For material selection guidance, see our Shim Material Selection Guide.

Frequently Asked Questions About Brass Shims

Brass shims are finely cut pieces of metal that are thin and are designed to fill in spaces, correct alignment, or hold parts in place or maintain the correct spacing in mechanical assemblies. Typical applications are machinery alignment, electrical panel clearance, pump and valve clearance, architectural trim and heat exchanger assembly.

The first standard to consider is ASTM B36 / ASME SB36, which deals with brass plate, sheet, strip and rolled bar. It defines chemical composition, mechanical properties and dimensional tolerances of all copper-zinc alloy grades in shim applications.

The most common grade of brass used as shim is C26000 (Cartridge Brass, 70% Cu + 30% Zn). It gives the optimal balance of cold-working capacity, formability, corrosion resistance and moderate strength of all standard brass alloys.

When working with a thicker stock, brass shims can be cut with a tin snip, a sharp utility knife and steel rule can be used to cut thin foil shims, laser cutting may be used to cut precision precut shapes, and a CNC puncher may be used in high-volume custom profiles. Always deburr cut edges to prevent injuries of handling.

Brass shims also provide 28% IACS electrical conductivity compared to around 2% IACS with SS 304 and thus brass is much better in electrical applications. Brass is more easily machined and can be cut to size. SS 304 is more suitable in high temperatures and in the presence of harsh chemicals. Our complete comparison table is above.

Aashish Metal and Alloys offers shims made of brass in 0.05mm foil, 0.5mm alloy sheet and 3.0mm sheet and thickness, and the company can provide shims of alloy sheets of greater thickness on orders. It is available in a variety of lengths (3.2mm to 1500mm).

No. Brass alloys are prone to stress corrosion cracking in the presence of ammonia and ammonium salt. In this case, stainless steel or copper-nickel shims should be used instead.

Contact Aashish Metal and Alloys for Brass Shims Inquiry

For brass shim enquiries, stock availability, custom dimensions or export pricing, contact us:

  • Phone: +91-22-66362223 / 66394926
  • Email: export@aashishmetal.com
  • Request a Quote online for the fastest response

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Aashish Metal & Alloys is a well known Manufacturer , Stockiest, Supplier and Exporter of Raw materials like Long Radius Bends, Compression Tube Fittings, Pipe Fittings, Forged Fittings, Flanges, Shims & Plates, Fasteners, Pipes & tubes, round Bars & Wire etc.

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