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Industrial Metalworking Raw Materials are semi-finished ferrous and non-ferrous alloys supplied with certified tight dimensional tolerances to minimise preparatory machining. This includes... Read more below.
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Industrial Metalworking Raw Materials Explored

Are you tired of wasting valuable workshop time and expensive material squaring up poorly finished stock?

As when you begin a precision job, relying on generic metal bars that lack tight dimensional tolerances can only lead to costly setbacks, and inaccurate stock forces extra grinding, compromises your parallelism, and ultimately increases your scrap rate.

All-in-all, as you will know, this hidden inefficiency can severely delay your project deadlines and erode your profit margins, making simple tooling or component manufacturing far more complicated than it should be.

Then just imagine your frustration, you have spent hours setting up a complex die, only to find the unground flat stock shifts slightly due to uneven surfaces, ruining the final cut.

Or, perhaps, a key machine is down because a generic key snaps under load, causing you massive downtime as an end result.

As a result, this lack of reliability and precision in your foundational materials really is the root cause of repeated failures and inconsistent product quality.

Well here, you need guaranteed accuracy from the start, so much so that we have put our range of Industrial Metalworking Raw Materials together to help you choose from, including precision Ground Flat Stock, Key Steel, Shim, and Silver Steel, to help you to eliminate these issues through quality metalworking raw materials.

Due to this, we supply stock finished to exacting tolerances - which are ready for immediate machining.

So, you can start faster, waste less, and achieve that perfect precision every time, all while making sure that your components and tools are built to last.

Then, if you are still not sure in any way, our helpful customer service team is on hand to answer any questions you may have before you buy as well.

Table of Contents

What Are Industrial Metalworking Raw Materials?

Definition: Industrial Metalworking Raw Materials are semi-finished ferrous and non-ferrous alloys supplied with certified tight dimensional tolerances to minimise preparatory machining. This includes Ground Flat Stock & Gauge Plate, a precision-ground tool steel used for manufacturing jigs, dies, and fixtures. Silver Steel, which is a high-carbon bright steel rod known for its fine surface finish and excellent hardenable properties, is suitable for small shafts and punches. Key Steel is bright drawn, accurately sized stock (often EN8/C45) for reliable torque transmission via keyways in rotating machinery. Finally, Shim then comprises thin, high-accuracy foil / sheets (e.g., stainless Steel) essential for precision component levelling, alignment, and compensating for wear or tolerance stack-up in assemblies.

Ground Flat Stock & Gauge Plate, The Benchmark for Precision Tooling

Ground Flat Stock (often referred to as Gauge Plate in its thinner forms) is the cornerstone of high-precision metalworking, particularly in the fabrication of essential tools, dies, jigs, and fixtures.

Here you are getting a premium product that has been purposefully designed to dramatically reduce the preparation time required before any machining can begin.

Key Features and Specifications

The defining feature of this material is its unparalleled dimensional accuracy.

This accuracy is due to the fact that Ground Flat Stock is supplied in a ready-to-use condition, having been precision-ground on all four faces (width and thickness).

This process then makes sure that you can get extremely tight thickness and width tolerances, resulting in a remarkably flat and parallel surface finish.

Our stock is then available in various standardised grades, allowing you to select the appropriate material for your exact job at hand as well.

Due to this, the most common grades available can include O1 Tool Steel (Oil Hardening) and D2 Tool Steel (High Carbon/High Chromium), each of which offers some very distinct characteristics in terms of their wear resistance and hardening capabilities.

They are also typically supplied in standard metric and imperial lengths, with protective packaging to maintain the surface integrity right up to the point of use as well.

This is all while the standardised dimensions of the stock mean you can quickly select the nearest required size, minimising material waste as you do so as well.

Their Advantages and Workshop Benefits

The primary advantage of using Ground Flat Stock is the significant time-saving it offers you.

It offers you this saving by eliminating the need for pre-machining or surface grinding to achieve the necessary parallelism, meaning that your engineers can move directly to marking out and cutting their desired profiles easily.

Due to this efficiency being needed in a fast-paced environment, it gives you several benefits, including, for instance:

Exceptional Flatness and Parallelism

Guarantees that the resulting tooling or fixture will be dimensionally accurate, which is needed for press tools, blanking dies, and machine parts where cumulative tolerance errors must be avoided.

Superior Hardening Properties

The high-quality tool steel grades are designed to be hardened and tempered effectively, resulting in components that boast excellent wear resistance and a long operational lifespan.

Reduced Scrap Rate

The uniform dimensions and high-quality surface finish contribute to more reliable machining processes, ultimately leading to a lower scrap rate for complex parts.

In essence, Ground Flat Stock and Gauge Plate offer you a very reliable, high-performance starting point for any application demanding absolute dimensional integrity and durability all at the same time.

Key Steel, For Securing Power Transmission in Rotating Machinery

Key Steel is really an indispensable raw material used primarily within mechanical engineering, and it has been specifically designed for creating and replacing machine keys.

Due to this, these small, essential components are responsible for securing rotational elements - such as gears, pulleys, and sprockets - to a shaft, to make sure the efficient and reliable transmission of torque all without slippage as it does so.

Key Features and Specifications

Key Steel is characterised by its tight tolerance on its cross-sectional dimensions.

Due to this, it is typically supplied in a bright drawn or cold-finished condition, which gives it a smooth surface and improved strength in the process.

The material itself is also often a medium-carbon steel grade, such as C45 (which is roughly equivalent to EN8 or 080M40 in older British standards).

This grade then offers you a superb balance of strength, toughness, and machinability as an end result.

It is also supplied in a standardised range of square or rectangular cross-sections, making sure that it fits snugly and precisely into the corresponding keyways cut into the shaft and the hub of the rotating component.

However, crucially, Key Steel is sold in standard, manageable lengths, ready to be cut by your users to the exact length of the component’s keyway.

Advantages and Operational Benefits

The use of purpose-made Key Steel ensures the integrity of the power transmission system, as using material with an accurate cross-section will prevent slack or play within the keyway, which is a common cause of failure, wear, and eventual shaft damage.

Due to this, it gives you several benefits such as:

High Shear Strength

The medium-carbon steel composition provides the necessary strength to resist the high shear forces generated when transmitting significant torque, ensuring a reliable connection between the shaft and component.

Excellent Fit and Installation Ease

The bright drawn finish and precise tolerances mean that the key can be driven or pressed into the keyway quickly and securely, simplifying both the assembly and maintenance processes.

Standardisation

The material conforms to British and international standards (like BS 46/1), meaning replacement or repair work can be carried out reliably using standard stock, reducing downtime.

For maintenance engineers, having reliable Key Steel stock on hand is crucial for immediate repairs, maintaining the operational continuity of essential production machinery.

Shim Material, Your Essential Tool for Alignment and Compensation

Shim is then perhaps the most understated yet key material in precision assembly and alignment.

For instance, here it consists of very thin strips or sheets of metal (or sometimes plastic) used to fill small gaps, compensate for minor variations in component tolerances, or achieve precise alignment between mating machine parts.

Key Features and Specifications

The core feature of shim material is its thickness accuracy.

Due to this, it is available in an extensive range of finely graded thicknesses, often ranging from mere hundredths of a millimetre up to several millimetres.

This material is also typically supplied in several formats to suit the application: shim foil and strips in dispenser coils for cutting custom gaskets or washers, or pre-cut shims for faster, standardised motor or pump alignment, depending on how you need it for your application.

Shim stock is also offered in a variety of materials, each suited to different environmental and performance requirements:

Stainless Steel (e.g., 304/316):

Offers excellent corrosion resistance and strength, making it ideal for wet or chemically active environments.

Brass and Copper:

Often used when a softer, non-ferrous material is required, or for its superior thermal and electrical conductivity.

Carbon Steel:

A cost-effective option for general levelling and alignment where corrosion is less of a concern.

Advantages and Workshop Benefits

Shim material is just the definition of precision maintenance.

This is because its use allows machinery to operate at peak efficiency and reduces the risk of expensive failures.

Due to this, it gives you a number of benefits, including:

Precision Alignment

Shims enable the minute adjustments necessary to ensure correct shaft parallelism and angular alignment in coupled machines, which drastically reduces vibration and extends the life of bearings, seals, and couplings.

Tolerance Compensation

They are used to restore correct clearances in worn machinery components, such as adjusting the backlash in gear trains or setting the correct gap in a brake assembly.

Vibration Dampening

In some applications, shims act as buffers, distributing load and dampening minor operational vibrations, which contributes to quieter and smoother running equipment.

The ability to select a precise thickness from a graded coil or packet makes shim stock a very economical solution for achieving highly accurate fits without resorting to time-consuming and costly machine shop work.

Silver Steel, The Gold Standard for Precision-Machined Components

Silver Steel is a name used in the UK for a particular grade of high-carbon bright Steel Rod.

It is revered in toolmaking and model engineering for its exceptional surface finish, dimensional accuracy, and use cases. It actually has no actual silver content, and the name refers to its characteristic, bright, highly polished appearance.

Key Features and Specifications

This material is defined by its superior quality finish and extremely tight manufacturing tolerances on its diameter.

For instance, here Silver Steel is typically supplied in round bars and consists of a specific high-carbon alloy steel, which is often comparable to DIN 1.2210 or BS EN40.

The key features here, for instance, include:

Ultra-Smooth Surface

The bright finish is a result of meticulous drawing and polishing, making it suitable for high-wear applications without further grinding.

High Dimensional Accuracy

The diameter is held to a very tight tolerance, making it perfect for use in bearings, bushes, and precision assemblies where the fit is critical.

Hardening Potential

The high carbon content allows the material to be through-hardened easily, often by oil quenching, to achieve a high hardness rating (up to 64 HRC), providing excellent wear resistance.

Please note: It is commonly supplied in metric and imperial diameters and available in lengths such as 333mm or 1-metre bars, perfect for bench-scale engineering and toolroom applications.

Advantages and Toolmaking Benefits

Silver Steel is the preferred choice for applications where both precision and durability are paramount, effectively bridging the gap between raw stock and finished components.

Due to this, it gives you several advantages, including:

Excellent Machinability

Despite its high strength, it machines cleanly and consistently, allowing for the creation of intricate shapes and fine threads without tearing or chipping.

Ideal for Custom Tooling

It is the material of choice for manufacturing custom-made tools such as punches, scribers, engraving tools, precision dowel pins, and small-diameter shafts where a ground finish is essential for operational smoothness.

Holds a Fine Edge

When hardened, Silver Steel can hold a very fine and durable cutting edge, which is invaluable for hand tools and specialised cutting bits.

In summary here, the high-carbon content and superior surface quality of Silver Steel make it an outstanding investment for any workshop that places a premium on accuracy, quality of finish, and the durability of custom components.

So are Industrial Metalworking Raw Materials Right For You?

As you can see, choosing your raw materials from us here at MSC Direct makes sure that you are starting your project with certified, accurate, and high-quality stock.

Whether you are crafting bespoke tooling with Ground Flat Stock, ensuring maximum torque transfer with Key Steel, achieving minute precision with Shim, or producing durable components from Silver Steel, our selection is designed to streamline your operations and guarantee a professional finish.

Quality in, quality out. We are committed to supplying you with the foundational materials that keep British industry moving forward for years to come.

Contact Customer Support

However, if you are still not sure about which is the correct material for you, or you need help, then for further product information, please contact our team, and we will be happy to help you understand which ones are perfect for you and your team.

MSC Direct's team

Disclaimer

Please note: Even though we have done a good job at explaining this space and what you need to be concerned about easily, we obviously can not, in one article, cover all application uses and areas for your individual applications.

As a result, if at all you are not 100% confident, please contact a trained professional for your exact field, or give our very helpful customer service team a call, as we are also on hand to answer any questions you may personally have, as we may be able to help you further here if you still have questions or you are unsure.

Standard Delivery Options

We have also extended our delivery service and ordering hours to offer you free next-working-day delivery with immediate despatch, making your shipping experience even easier.

Place your order online by 7 p.m. and choose the delivery charge that suits you - including next-day dispatch - to ensure you get a timely, UK mainland hassle-free delivery of your products.

Standard free UK delivery is also available for all products ordered within the specified time, with free shipping and a good returns policy for certain items as well.

Who Is MSC Industrial Supply Co.?

Here at MSC Industrial Supply Co., we are a leading supplier of industrial machine tools, equipment, and maintenance supplies across the United Kingdom. As a result, we can offer trade accounts, a vast selection of new and great-value products from tool sets to metalworking cutting tools and lots more, with free next-day delivery on eligible orders as well.

Our extensive range includes everything from hand tools and power tools to specialised hole-making equipment like blacksmith drill bits, core drills, and machine reamers, to name just a few.

As a result, we serve a wide range of industries, from manufacturing and engineering to maintenance and beyond. Consequently, our commitment to providing quality products and exceptional customer service makes us a trusted partner for all your industrial needs.

With our knowledgeable customer support team and technical assistance available Monday-Friday, we ensure you have the support you need to succeed.