--- description: Learn about Stainless Steel 18-8, a versatile and durable alloy commonly used for its corrosion resistance and strength in various applications. title: Stainless Steel 18-8 - Hopeful image: https://hplmachining.com/wp-content/uploads/2025/01/1-43.png --- [Skip to content](#content) # Stainless Steel 18-8 Stainless steel 18/8 is made of 18% chromium and 8% nickel, among other elements. Due to its strength and resistance to oxidation, this grade of stainless steel is very versatile. It is used extensively in the food processing industry, kitchen components, architectural elements, automobile parts, as well as in medical devices. It can endure extreme surroundings, high temperatures, and intense mechanical pressure. Perfect for configuring highly reliable and durable components. [contact us](#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjE2OTQiLCJ0b2dnbGUiOmZhbHNlfQ%3D%3D) - [Stainless Steel 18-8 PDF](https://hplmachining.com/wp-content/uploads/2025/01/Stainless-Steel-18-8-1.pdf) Sam Sun - CNC Machining Expert：Our expertise is in CNC milling, CNC turning, 3D printing, urethane casting, and sheet metal fabrication that allows us to provide for you bespoke and high precision solutions. ![Sam Sun](https://hplmachining.com/wp-content/uploads/2025/01/2-9.webp) Sam Sun ## Specifications for Stainless Steel 18-8 | Standard | AISI (UNS) | C, ≤ (%) | Si, ≤ (%) | Mn, ≤ (%) | P, ≤ (%) | S, ≤ (%) | Cr (%) | Ni (%) | N, ≤ (%) | Product | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | ASTM A240/A240M | 304 (UNS S30400) | 0.07 | 0.75 | 2 | 0.045 | 0.03 | 17.5-19.5 | 8.0-10.5 | 0.1 | Plate, Sheet, and Strip | | ASTM A276A/276M | | 0.08 | 1 | 2 | 0.045 | 0.03 | 18.0-20.0 | 8.0-11.0 | – | Bars and Shapes | | Standard | AISI (UNS) | Tensile Strength (MPa), ≥ | Yield Strength (MPa), ≥ | Elongation in 50 mm (%, ≥) | Reduction of Area (%, ≥) | Brinell Hardness (HBW), ≤ | Rockwell Hardness (HRBW), ≤ | Product | Condition | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | ASTM A240/A240M | 304 (UNS S30400) | 515 | 205 | 40 | – | 201 | 92 | Plate, Sheet, and Strip | – | | ASTM A276A/276M | | 515 | 205 | 40 | 50 | – | – | Bars and Shapes | Hot finished | | | | 620 | 310 | 30 | 40 | – | – | Bars and Shapes | Cold finished, Dia ≤ 12.7mm | | | | 515 | 205 | 30 | 40 | – | – | Bars and Shapes | Cold finished, Dia > 12.7mm | Our Blog ## View our latest news [![The Key Differences Between UHMW and HDPE Plastic Machining](https://hplmachining.com/wp-content/uploads/2025/01/3.6.png)](https://hplmachining.com/blog/what-is-the-difference-between-uhmw-and-hdpe-machining/) [January 9, 2025](https://hplmachining.com/blog/what-is-the-difference-between-uhmw-and-hdpe-machining/) [The Key Differences Between UHMW and HDPE Plastic Machining](https://hplmachining.com/blog/what-is-the-difference-between-uhmw-and-hdpe-machining/) The importance of plastic machining in industries that require precision-engineered components cannot be overemphasized; it is among the most versatile materials for such applications. 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[Read More](https://hplmachining.com/blog/cutting-and-machining-metal/) ![Get 18-8 Stainless Steel CNC machining parts from Hopeful](https://hplmachining.com/wp-content/uploads/2025/01/1-118.webp) ## Get 18-8 Stainless Steel CNC machining parts from Hopeful Want to purchase top quality CNC machining components using Stainless Steel 18-8? Then Hopeful, a major manufacturer in China, is exactly where you need to go. We specialize in precision engineering and technology and this guarantees you the parts you need are long-lasting and dependable. Place your order now and get factory direct pricing on Hopeful’s machined components with Stainless Steel 18-8. Improving your machines with the highest quality components is now possible. Call us today to book your order! 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