S5 Tool Steel – Composition, Properties and Uses
Tool Steel S5 is a high-carbon, high-chromium air-hardening steel used in many applications and industries. It has excellent wear resistance, heat treatability, and machinability. Tool Steel S5’s corrosion resistance makes it an ideal material for many applications. Due to its exceptional composition and properties, UNS T41905, also known as S5 Tool Steel, is a popular choice among engineers and manufacturers. This high-speed steel comprises alloying elements such as tungsten, chromium, vanadium, and molybdenum, providing excellent wear resistance, toughness, and the ability to hold its shape under high temperatures. As a result, S5 Tool Steel is perfect for producing cutting tools, mould inserts, and other components subject to high stress and wear. The unique properties of S5 Tool Steel have made it stand out among other tool steels and a top choice in many industries. In this article, we will discuss the uses of Tool Steel S5 and explain its corrosion resistance, heat resistance, heat treatment, and machining properties.
What Forms of S5 Tool Steel is Available at Piping Mart?
- Nut
- Bar
- Bolt
- Pipe
- Screw
- Tubing
- Valves
- Washers
- Flanges
- Fasteners
- Electrodes
- Stud Bolts
- Sheet Plates
- Pipe Fittings
- Forged Fitting
- Instrumentation Fittings
S5 Tool Steel Composition
|
Element
|
Content (%) |
|---|---|
|
Iron, Fe
|
95.0 |
|
Carbon, C
|
0.50-0.65 |
|
Manganese, Mn
|
0.60-1.00 |
|
Silicon, Si
|
1.75-2.25 |
|
Chromium, Cr
|
≤0.35 |
|
Molybdenum, Mo
|
0.20-1.35 |
|
Vanadium, V
|
≤0.35 |
|
Copper, Cu
|
0.25 |
|
Phosphorus, P
|
≤0.03 |
|
Sulfur, S
|
≤0.03 |
S5 Tool Steel Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.75 g/cc | 0.280 lb/in3 |
S5 Tool Steel Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Hardness, Rockwell C (oil quenched from 816°C, 30 mins) | 50 | 50 |
| Hardness, Rockwell C (water quenched from 816°C, 30 mins) | 52 | 52 |
| Hardness, Rockwell C (oil quenched from 871°C, 30 mins) | 57 | 57 |
| Hardness, Rockwell C (water quenched from 871°C, 30 mins) | 59 | 59 |
| Hardness, Rockwell C (oil quenched from 954°C, 30 mins) | 61 | 61 |
| Hardness, Rockwell C (water quenched from 954°C, 30 mins) | 62 | 62 |
| Modulus of elasticity | 207 GPa | 30000 ksi |
| Charpy impact (V-notch; oil quenched from 927°C; 200°C temper temperature) | 10.8 J | 8.00 ft-lb |
| Charpy impact (V-notch; oil quenched from 927°C; 600°C temper temperature) | 20.3 J | 15.0 ft-lb |
| Machinability (1% carbon steel) | 65.0 – 70.0% | 65.0 – 70.0% |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
S5 Tool Steel Thermal Properties
| Properties | Conditions | ||
|---|---|---|---|
| T (°C) | Treatment | ||
| Thermal expansion | 12.6 x 10-6/ºC | 20-425 | – |
S5 Tool Steel Equivalents
- ASTM A681
- FED QQ-T-570
- SAE J437
- SAE J438
- UNS T41905
S5 Tool Steel Uses
Tool Steel S5 is used in many industrial applications, including dies and moulds for plastic injection moulding, extrusion dies for aluminium tubes, mandrels for cold drawing tubes, cutting tools such as taps and drills, screw machine components such as die holders and drill chucks, punches and forming dies for forgings, shear blades for sheet metal processing operations.
S5 Tool Steel Uses in Industries
Manufacturing Industry
S5 tool steel is commonly used in manufacturing for its high strength and wear resistance. It is often used to make molds, dies, and other tools that require durability and precision.
Automotive Industry
The automotive industry also uses S5 tool steel to produce components such as gears, shafts, and bearings. Its toughness and ability to withstand high temperatures make it a valuable material for these applications.
Aerospace Industry
In the aerospace industry, S5 tool steel produces aircraft parts that require high strength and wear resistance. This includes landing gear, engine parts, and structural elements.
Construction Industry
S5 tool steel is also commonly used in the construction industry for its strength and toughness. It can be found in various equipment and machinery used for building structures and in tools such as hammers and chisels.
Oil and Gas Industry
The oil and gas industry relies on S5 tool steel for its drilling equipment due to its ability to withstand extreme pressure and temperatures. It is also used in pumps, valves, and other crucial components for extracting oil and gas from deep within the earth.
S5 Tool Steel Corrosion Resistance
Tool Steel S5 has excellent corrosion resistance making it the ideal choice for many corrosive environments. It resists exposure to acids and alkalis without showing signs of corrosion or rusting. It can also be used in saltwater environments without any risk of rusting or corroding. This makes it an ideal material for industries like marine engineering, where exposure to saltwater is common.
S5 Tool Steel Heat Resistance
Tool Steel S5 has excellent heat resistance making it suitable for use in high-temperature environments such as furnaces or kilns. Its high-temperature strength allows it to maintain its structural integrity even at extreme temperatures, which makes it a great choice for applications that require materials that can withstand extreme temperatures without losing their structural integrity. This makes it an ideal choice for components exposed to extremely hot conditions regularly, such as furnace walls or kiln liners.
S5 Tool Steel Heat Treatment
Heat-treating Tool Steel S5 increases its hardness and brittleness, so great care must be taken when performing heat treatments on this material. It should be heated slowly to ensure uniform heating throughout the part being treated and then cooled slowly in order to prevent any cracking or warping due to rapid cooling, which can occur if the part is cooled too quickly after heating. The best way to cool this material is by quenching in oil or water and then tempering at a low temperature afterwards in order to reduce brittleness while maintaining hardness levels desired by the manufacturer or user of the part being treated.
S5 Tool Steel Machining
Machining with Tool Steel S5 requires special cutting tools designed specifically for this material due to its high wear resistance properties which can cause normal cutting tools to become dull quickly during machining operations if the wrong type of tool is used. Careful attention should be paid when selecting cutting tools and setting up machines prior to machining with this material to ensure optimal results are achieved during each machining operation performed with Tool Steel S5 parts or components.
Conclusion:
In conclusion, Tool Steel S5 is an ideal choice for many industrial applications because of its excellent wear resistance, heat treatability, and machinability properties combined with its superior corrosion resistance, making it suitable for use even in highly corrosive environments like marine engineering projects where exposure to salt water is common. Its heat-resistant properties allow it to maintain its structural integrity even at extremely high temperatures while still providing good machinability characteristics when using speciality cutting tools designed specifically for this material type during each machining operation performed with these parts or components, making Tool Steel S5 one of the most versatile materials available today!
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