What Are Stainless Steel Shim Sheets?
Stainless Steel Shim Sheets are precision-engineered, thin-gauge flat strips or rolls of stainless steel used to fill small gaps, align components, and provide fine-tuned dimensional adjustments in assemblies. Available in thicknesses as low as 0.01 mm, these shims are indispensable across industries including aerospace, automotive, petrochemical, power generation, marine, pharmaceutical, and heavy engineering.
Unlike standard flat sheets, shim sheets demand extremely tight thickness tolerances, consistent flatness, and excellent surface finish — qualities that can only be delivered through controlled cold-rolling and annealing processes. Stainless steel is the material of choice for shims in demanding environments due to its exceptional corrosion resistance, dimensional stability, and wide operating temperature range.
Our Stainless Steel Shim Sheets are produced in compliance with ASTM A240, ASME SA240, and other applicable standards, ensuring dimensional precision and metallurgical consistency across every grade.
Key Features & Advantages
- Extremely tight thickness tolerances (±0.005 mm available)
- Superior corrosion and oxidation resistance across grades
- High dimensional accuracy and consistent flatness
- Available in coil, roll, strip, and custom-cut sheet forms
- Suitable for cryogenic to high-temperature service
- Excellent surface finish — 2B, BA, No.4, Mirror finish available
- Conformance to ASTM, ASME, DIN, BS, IS, JIS, and EN standards
- Traceable mill test certificates and third-party inspection available
Available Grades — Detailed Specifications
We supply Stainless Steel Shim Sheets in the following grades. Each grade offers distinct metallurgical properties suited to specific industrial applications:
Stainless Steel 301 Shim Sheets
SS 301 is an austenitic stainless steel with lower nickel and chromium content compared to 304, offering high strength and excellent formability. It work-hardens rapidly, making it suitable for applications where high tensile strength is required after cold working.
| Property | Details |
| UNS Number | S30100 |
| Chromium Content | 16.0 – 18.0% |
| Nickel Content | 6.0 – 8.0% |
| Carbon Content | 0.15% max |
| Yield Strength | 205 MPa (min) |
| Tensile Strength | 515 MPa (min) |
| Hardness (Brinell) | 217 HB max |
| Standard | ASTM A240 |
Applications of Stainless Steel 301 Shim Sheets
- Railway coach springs and fasteners
- Automotive trim components and structural parts
- Aircraft structural components
- Hose clamps and locking mechanisms
- Conveyor belts and washers
- Electronic enclosures and clips
Stainless Steel 304 Shim Sheets
SS 304 is the most widely used austenitic stainless steel grade in the world. Known for excellent corrosion resistance, outstanding formability, and ease of fabrication, 304 shim sheets are a go-to choice across industrial, food processing, and architectural applications.
|
Property |
Details |
|
UNS Number |
S30400 |
|
Chromium Content |
18.0 – 20.0% |
|
Nickel Content |
8.0 – 10.5% |
|
Carbon Content |
0.08% max |
|
Yield Strength |
215 MPa (min) |
|
Tensile Strength |
505 MPa (min) |
|
Hardness (Brinell) |
201 HB max |
|
Standard |
ASTM A240 / ASME SA240 |
Applications of Stainless Steel 304 Shim Sheets
- Food processing and beverage equipment
- Architectural cladding and paneling
- Chemical storage tanks and vessels
- Kitchen equipment and utensils
- Pharmaceutical processing equipment
- Automotive and aerospace shimming and spacing
- HVAC systems and ducting
Stainless Steel 309 Shim Sheets
SS 309 offers superior oxidation and corrosion resistance at elevated temperatures, making it an ideal choice for high-temperature industrial applications. Its high chromium and nickel content ensures excellent scaling resistance up to 1093°C.
|
Property |
Details |
|
UNS Number |
S30900 |
|
Chromium Content |
22.0 – 24.0% |
|
Nickel Content |
12.0 – 15.0% |
|
Carbon Content |
0.20% max |
|
Yield Strength |
205 MPa (min) |
|
Tensile Strength |
515 MPa (min) |
|
Max Service Temp. |
1093°C (intermittent) |
|
Standard |
ASTM A240 |
Applications of Stainless Steel 309 Shim Sheets
- Furnace components and heat shields
- Kiln liners and combustion chambers
- Boiler baffles and radiant tubes
- Thermal processing equipment
- Weld overlay and transition joints
- High-temperature gaskets and shims
Stainless Steel 310/310S Shim Sheets
SS 310/310S is a high-alloy austenitic stainless steel designed for extreme high-temperature service. With 25% chromium and 20% nickel, it exhibits exceptional oxidation resistance and maintains structural integrity at temperatures up to 1150°C.
|
Property |
Details |
|
UNS Number |
S31000 / S31008 |
|
Chromium Content |
24.0 – 26.0% |
|
Nickel Content |
19.0 – 22.0% |
|
Carbon Content |
0.25% / 0.08% max |
|
Yield Strength |
205 MPa (min) |
|
Tensile Strength |
515 MPa (min) |
|
Max Service Temp. |
1150°C (continuous) |
|
Standard |
ASTM A240 / ASME SA240 |
Applications of Stainless Steel 310/310S Shim Sheets
- Cryogenic vessels and heat exchangers
- Furnace parts, muffles, and retorts
- Coal gasification and sulfur recovery plants
- Cement and glass manufacturing kilns
- Aircraft and jet engine components
- High-temp shim and spacer applications
Stainless Steel 316/316L/316H/316Ti Shim Sheets
The 316 family is an upgrade to 304 with the addition of molybdenum, which provides superior resistance to pitting and crevice corrosion in chloride environments. 316L has low carbon for enhanced weldability; 316H has higher carbon for high-temperature strength; 316Ti incorporates titanium for stabilization.
|
Property |
Details |
|
UNS Number |
S31600 / S31603 / S31609 / S31635 |
|
Chromium Content |
16.0 – 18.0% |
|
Nickel Content |
10.0 – 14.0% |
|
Molybdenum Content |
2.0 – 3.0% |
|
Carbon Content |
0.08% / 0.03% / 0.04–0.10% / 0.08% |
|
Yield Strength |
170 MPa (min) |
|
Tensile Strength |
485 MPa (min) |
|
Standard |
ASTM A240 / ASME SA240 |
Applications of Stainless Steel 316/316L/316H/316Ti Shim Sheets
- Marine and offshore equipment
- Chemical processing and pharmaceutical plants
- Pulp and paper industry components
- Medical and surgical instruments
- Desalination plant components
- Food and beverage handling equipment
- Nuclear and power generation applications (316H/316Ti)
Stainless Steel 317/317L Shim Sheets
SS 317/317L contains higher molybdenum (3–4%) than the 316 family, providing even greater resistance to pitting, crevice corrosion, and general corrosion in aggressive chemical environments. The L variant offers low carbon content for superior weldability.
|
Property |
Details |
|
UNS Number |
S31700 / S31703 |
|
Chromium Content |
18.0 – 20.0% |
|
Nickel Content |
11.0 – 15.0% |
|
Molybdenum Content |
3.0 – 4.0% |
|
Carbon Content |
0.08% / 0.03% max |
|
Yield Strength |
205 MPa (min) |
|
Tensile Strength |
515 MPa (min) |
|
Standard |
ASTM A240 |
Applications of Stainless Steel 317/317L Shim Sheets
- Sulphuric and acetic acid handling equipment
- Bleaching and pulp processing machinery
- Textile and dyeing plant components
- Scrubbers, absorbers, and condensers
- Pharmaceutical production systems
- High-corrosion-environment shims and spacers
Stainless Steel 321/321H Shim Sheets
SS 321 is stabilized with titanium to prevent sensitization and intergranular corrosion after welding. 321H features higher carbon content for improved creep strength at elevated temperatures, making this grade ideal for thermal cycling applications.
|
Property |
Details |
|
UNS Number |
S32100 / S32109 |
|
Chromium Content |
17.0 – 19.0% |
|
Nickel Content |
9.0 – 12.0% |
|
Titanium Content |
5x(C+N) min, 0.70% max |
|
Carbon Content |
0.08% / 0.04–0.10% |
|
Yield Strength |
205 MPa (min) |
|
Tensile Strength |
515 MPa (min) |
|
Standard |
ASTM A240 / ASME SA240 |
Applications of Stainless Steel 321/321H Shim Sheets
- Aircraft exhaust manifolds and firewalls
- Expansion joints and bellows
- Thermal cycling service components
- Boiler headers and superheaters
- Refinery pressure vessels
- Automotive exhaust systems
Stainless Steel 347/347H Shim Sheets
SS 347 is stabilized with niobium (columbium) and tantalum to resist sensitization during welding. 347H has higher carbon for improved creep strength. This grade is preferred over 321 when high-temperature applications demand maximum resistance to intergranular corrosion.
|
Property |
Details |
|
UNS Number |
S34700 / S34709 |
|
Chromium Content |
17.0 – 19.0% |
|
Nickel Content |
9.0 – 13.0% |
|
Niobium + Tantalum |
10 x C min, 1.10% max |
|
Carbon Content |
0.08% / 0.04–0.10% |
|
Yield Strength |
205 MPa (min) |
|
Tensile Strength |
515 MPa (min) |
|
Standard |
ASTM A240 |
Applications of Stainless Steel 347/347H Shim Sheets
- Nuclear power plant components
- Jet engine parts and exhaust systems
- Chemical reactor vessels
- High-temperature steam piping shims
- Coal liquefaction and gasification systems
- Food processing equipment requiring welding
Stainless Steel 409 Shim Sheets
SS 409 is the most economical ferritic stainless steel grade, containing titanium as a stabilizer. It offers good resistance to oxidation and exhaust gas corrosion, making it an industry standard for automotive exhaust systems and agricultural equipment.
|
Property |
Details |
|
UNS Number |
S40900 |
|
Chromium Content |
10.5 – 11.75% |
|
Nickel Content |
0.50% max |
|
Titanium Content |
6 x C min to 0.75% max |
|
Carbon Content |
0.08% max |
|
Yield Strength |
170 MPa (min) |
|
Tensile Strength |
380 MPa (min) |
|
Standard |
ASTM A240 |
Applications of Stainless Steel 409 Shim Sheets
- Automotive exhaust systems and mufflers
- Agricultural and construction machinery
- Railway car structures
- Heat exchangers and radiators
- Transformer enclosures
- Catalytic converters and emission control systems
Stainless Steel 410 Shim Sheets
SS 410 is the general-purpose martensitic stainless steel, offering a combination of good corrosion resistance, high strength, and hardness. It is heat-treatable and provides superior mechanical properties compared to ferritic grades
|
Property |
Details |
|
UNS Number |
S41000 |
|
Chromium Content |
11.5 – 13.5% |
|
Nickel Content |
1.0% max |
|
Carbon Content |
0.15% max |
|
Yield Strength |
205 MPa (min) |
|
Tensile Strength |
450 MPa (min) |
|
Hardness (Brinell) |
96 HRB max (annealed) |
|
Standard |
ASTM A240 |
Applications of Stainless Steel 410 Shim Sheets
- Cutlery, knife blades, and hand tools
- Steam and gas turbine blades
- Valve seats and pump shafts
- Dental and surgical instruments
- Bolts, nuts, and machine parts
- Precision shimming requiring high hardness
Stainless Steel 420 Shim Sheets
SS 420 is a higher-carbon martensitic stainless steel providing excellent hardness and wear resistance after heat treatment, while maintaining moderate corrosion resistance. It is widely used where high hardness is a critical requirement.
|
Property |
Details |
|
UNS Number |
S42000 |
|
Chromium Content |
12.0 – 14.0% |
|
Nickel Content |
— |
|
Carbon Content |
0.15% min |
|
Yield Strength |
345 MPa (min, hardened) |
|
Tensile Strength |
655 MPa (min, hardened) |
|
Hardness |
50 HRC max (hardened) |
|
Standard |
ASTM A240 |
Applications of Stainless Steel 420 Shim Sheets
- Cutlery, surgical scissors, and scalpels
- Measuring instruments and precision tools
- Mould and die components
- Plastic injection moulding tools
- High-wear shims and bearing surfaces
- Valve components and pump internals
Stainless Steel 430/431 Shim Sheets
SS 430 is a ferritic grade with excellent corrosion resistance and oxidation resistance at moderately elevated temperatures. SS 431 offers higher strength with added nickel content. Both grades are non-hardenable and are commonly used for decorative and structural applications.
|
Property |
Details |
|
UNS Number |
S43000 / S43100 |
|
Chromium Content |
16.0–18.0% / 15.0–17.0% |
|
Nickel Content |
0.75% max / 1.25–2.50% |
|
Carbon Content |
0.12% / 0.20% max |
|
Yield Strength |
205 / 310 MPa (min) |
|
Tensile Strength |
450 / 690 MPa (min) |
|
Hardness (Brinell) |
183 / 260 HB max |
|
Standard |
ASTM A240 |
Applications of Stainless Steel 430/431 Shim Sheets
- Automotive trim and exterior decorative parts
- Domestic appliances and kitchen equipment
- Washing machine drums and dishwasher liners
- Interior architectural panels and trims
- Nitric acid and fertiliser plant components (431)
- Precision shims for moderate-temperature service
Stainless Steel 904L Shim Sheets
SS 904L is a high-alloy austenitic stainless steel with extremely low carbon content and high molybdenum, copper, and nickel additions. It delivers exceptional resistance to a wide range of corrosive environments including sulphuric acid, phosphoric acid, and chloride solutions — making it a premium-grade shim material.
|
Property |
Details |
|
UNS Number |
N08904 |
|
Chromium Content |
19.0 – 23.0% |
|
Nickel Content |
23.0 – 28.0% |
|
Molybdenum Content |
4.0 – 5.0% |
|
Copper Content |
1.0 – 2.0% |
|
Carbon Content |
0.02% max |
|
Yield Strength |
220 MPa (min) |
|
Standard |
ASTM B625 / ASME SB625 |
Applications of Stainless Steel 904L Shim Sheets
- Sulphuric acid plants and scrubbers
- Phosphoric acid production equipment
- Seawater desalination components
- Offshore oil and gas processing
- Pulp and paper bleaching plants
- Pharmaceutical and fine chemical processing
- High-end precision shimming in corrosive environments
Standard Size Chart
We offer Stainless Steel Shim Sheets in a comprehensive range of standard and custom dimensions. Custom sizes, special tolerances, and non-standard thicknesses are available on request.
|
Parameter |
Standard Range |
Custom Range |
Tolerances |
Finish |
Form |
|
Thickness |
0.01 mm – 3.0 mm |
Up to 6.0 mm |
±0.005 mm |
2B / BA / No.4 |
Coil / Strip / Sheet |
|
Width |
6 mm – 1500 mm |
Up to 2000 mm |
±0.10 mm |
Mirror / Satin |
Roll / Cut Length |
|
Length |
500 mm – 6000 mm |
Custom Cut |
±1.0 mm |
No.8 / No.1 |
Custom Cut Sheet |
|
Hardness |
Soft / 1/4 Hard |
1/2 Hard / Full Hard |
Per ASTM A240 |
Pickled / Bright |
As Required |
Technical Details & Standards Compliance
Our Stainless Steel Shim Sheets are manufactured and tested to comply with the following internationally recognised standards and specifications:
|
Standard / Specification |
Description |
|
ASTM A240 |
Standard Specification for Chromium and Chromium-Nickel SS Plate, Sheet, and Strip |
|
ASME SA240 |
Equivalent ASME specification for pressure vessel and boiler applications |
|
EN 10088 |
European standard for stainless steel flat products |
|
IS 6911 |
Indian Standard for SS Plates, Sheets, and Strips |
|
DIN 17440 |
German standard for stainless steel flat rolled products |
|
JIS G4304 / G4305 |
Japanese standard for hot-rolled and cold-rolled SS plates and strips |
Industry-Wide Applications of Stainless Steel Shim Sheets
Stainless steel shims play a critical role across virtually every manufacturing and engineering sector. Below are the primary industries and application areas where our shim sheets are deployed:
|
Industry |
Applications |
|
Aerospace & Defence |
Turbine blade spacing, airframe alignment, engine assembly shimming |
|
Automotive |
Engine valve shimming, gearbox alignment, exhaust systems, body panel gaps |
|
Oil & Gas |
Pump and compressor alignment, flange face shimming, wellhead components |
|
Power Generation |
Turbine alignment, generator assembly, boiler components shimming |
|
Food & Pharma |
Hygienic precision spacing in processing equipment, FDA-compliant shims |
|
Marine & Offshore |
Propeller shaft alignment, hull component shimming, corrosion-resistant spacers |
|
Construction |
Structural steel alignment, bridge bearing pads, curtain wall shimming |
|
Electronics |
PCB spacing, EMI shielding, precision component isolation |
Cities We Deliver To –
We supply and export Stainless Steel Shim Sheets to customers across India and internationally. Our extensive logistics network ensures prompt and safe delivery to all major industrial hubs:
| India | India | India | International |
| Mumbai | Ahmedabad | Ludhiana | UAE / Dubai |
| Delhi / NCR | Coimbatore | Rajkot | Saudi Arabia |
| Bangalore | Vadodara | Bhopal | USA / Canada |
| Chennai | Jamnagar | Nagpur | UK / Europe |
| Hyderabad | Visakhapatnam | Kanpur | Australia / NZ |
| Pune | Kolkata | Jaipur | Southeast Asia |
| Surat | Indore | Kochi | Middle East |
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