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Stainless Steel Strip Coil and Foil For Demanding Applications

When your application demands exact tolerances and consistent mechanical properties, the quality of your stainless steel strip coil matters. Special Metal Alloys supplies precision-rolled stainless steel strip coil and foil to manufacturers across aerospace, medical, automotive, and nuclear industries engineered to your exact specifications.

Generations of Experience Delivered to Spec.

Precision rolling is not something that can be rushed or outsourced without consequence. At Special Metal Alloys, we have refined our cold rolling capabilities across generations of technical expertise, giving you access to in-house production that covers a wide range of alloys and gauges under one roof.

In-House Rolling to the Lightest Gauges

Our Sendzimir and 3/4-Hi rolling mills allow us to reduce strip to the lightest gauges while maintaining tight thickness tolerances and consistent flatness. Rolling in-house means you benefit from tighter process control, faster turnaround, and direct technical support with no third-party uncertainty in the supply chain.

Rolled Strip Size Ranges:

  • Thickness: 0.0075mm – 3.175mm (0.0003″ – 0.120″)
  • Thickness Tolerance (Standard): +/- 5%
  • Width: 0.508mm – 356mm (0.020″ – 14″)
  • Width Tolerance (Standard): +/- 0.127mm (+/- 0.005″)

Precision Slitting and Controlled Edge Conditions

The edge condition of your strip coil directly affects how the material performs in your production process. Our precision slitting lines cut strip to your required width at finished gauge and temper, with full control over edge profile, coil inner diameter, coil outer diameter, interleaving, and winding method.

Available Edge Conditions:

Edge TypeWidthThickness
No. 1 Round EdgeUp to 38mm0.178mm – 1.575mm
No. 3 Slit EdgeFrom 0.5mm0.023mm – 3.175mm
No. 5 Square EdgeUp to 57mm0.102mm – 1.575mm
Broken CornerUp to 89mm1.575mm – 3.175mm

Slit Coil Size Ranges:

  • Thickness: 0.0075mm – 4.775mm (0.0003″ – 0.188″)
  • Width: 0.8128mm – 1,368mm (0.032″ – 59.5″)
  • Width Tolerance: +/- 0.127mm (+/- 0.005″)

Whether your process involves stamping, deep drawing, roll-forming, or fine blanking, we will specify the right edge condition for your application.

Manufacturing Capabilities Built Around Your Requirements

Flatness

Dimensional consistency across the full coil width is critical for forming and stamping operations. We offer:

  • Standard flatness: 0.020 PIW
  • Critical flatness: 0.010 PIW
  • Additional flatness options available upon request, subject to material, thickness, and width

Tension levelling is also available to achieve superior flatness, reducing shape defects that can interfere with downstream processing.

Custom Tempers

We customise temper to each customer’s specification, from drawing quality and coining tempers through to extra full hard. If your application demands a non-standard temper, our technical team will work with you to develop the right solution.

Camber

Standard camber tolerances comply with commercial specifications. Tighter tolerances are available upon request.

  • Strip up to 38mm wide: 13mm in 2.5 metres
  • Measured by placing a 2.5-metre straight edge against the concave edge of the strip

Atmosphere Controlled Annealing

Strip coil can be annealed under a range of controlled atmospheres from full anneal to stress relieving giving you precise control over mechanical properties and microstructure. This ensures the material you receive behaves predictably in your process, every time.

Rigorous Testing at Every Stage

Quality is not assumed at Special Metal Alloys it is verified. Our testing capabilities are designed to give you full confidence in the material before it reaches your facility.

Mechanical Testing

  • Room Temperature Tensile Testing
  • Bend Testing
  • Rockwell and Vickers Hardness Testing

Metallographic Analysis

  • Micro-Hardness Testing
  • Grain Size Determination
  • Near-Surface Examinations
  • Micro-Cleanliness Assessment
  • IGA/IGO Analysis

Every test is traceable, and full material certification is provided with each order.

Standards Compliance and Certifications

Our stainless steel strip coil and foil is supplied to meet a wide range of industry and international specifications, including:

  • AMS — Aerospace Material Specifications
  • ASTM — International Standards
  • MIL — Military Specifications
  • DIN — Deutsches Institut für Normung

Whether you operate in a highly regulated sector such as aerospace or nuclear, or require material certification for medical device manufacturing, our documentation and standards compliance supports your quality assurance process.

Coil Coatings and Electroplated Strip

When your production process requires surface protection, lubrication, or a functional finish, we offer a range of coatings and plating options applied directly to the coil — removing the need for you to manage additional processing steps or third-party suppliers.

Peelable and Protective Coatings

  • Plastisol PVC — Peelable coatings available in varying thicknesses, adhesion levels, colours, and opacity
  • PTFE / Molykote — Permanent dry lubricant on steel for low-friction applications
  • Nitrile Rubber — For sound dampening and sealing applications
  • Adhesive Bonding Coatings — For EPDM and TPV applications
  • Decorative Coatings — For trim and finish applications

Electroplated Strip

Pre-plated strip is available for applications where surface functionality is critical. We work with trusted processing partners to supply fully finished coil, reducing complexity in your supply chain and ensuring consistent surface quality across every order.

Have a specific coating or plating requirement not listed here? Contact our sales team with your specifications.

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Please note: We only supply bulk / wholesale orders.