Hardness testing to ISO 6508-1
Stainless Steel A2-80 Hex Bolt is a specific type of fastener renowned for its exceptional durability and corrosion resistance. This designation, "A2-80," refers to the material grade and its mechanical properties. Here are some key features, applications, corrosion resistance, machining characteristics, and considerations for this type of hex bolt:
Features: Stainless Steel A2-80 hex bolts are primarily composed of austenitic stainless steel, which is known for its high corrosion resistance and strength. The "A2" classification signifies that it is made from AISI 304 stainless steel, which contains 18% chromium and 8% nickel, providing excellent resistance to rust and corrosion. The "80" designation refers to its minimum tensile strength, which is approximately 800 MPa, making it a strong and reliable fastening solution.
Applications: These hex bolts are suitable for a wide range of applications, particularly in industries where corrosion resistance and mechanical strength are crucial. Common uses include construction, marine environments, automotive manufacturing, and food processing equipment. They are also utilized in outdoor installations and infrastructure projects due to their ability to withstand exposure to the elements.
Corrosion Resistance: Stainless Steel A2-80 hex bolts offer outstanding corrosion resistance, making them ideal for use in environments where they may be exposed to moisture, saltwater, or acidic conditions. The chromium content forms a protective oxide layer on the surface, preventing rust and corrosion from compromising the integrity of the bolt.
|Specifications||ASTM A193 / ASME SA193|
|Standard||ISO, ASTM, DIN, JIS, IS, GB, BS, and all International Standards|
|Size||M3 - M100 | 3/6″ - 4″ | Custom Sizes|
|Length||3 mm - 200 mm | Custom Sizes|
|DIN Standard||B.S. DIN 931, DIN 933, DIN 912, DIN 934, DIN 6923, DIN 603, DIN 7981, DIN 970, DIN916, DIN 7982, DIN 7985, DIN 913|
|UTS||NPT, UNS, UNF, UNC, UNEF, NPTF|
|ISO||ISO 4033, ISO 4032, ISO 7380, ISO 4017, JIS standards|
|Threads||UNF, BSW, BSF, METRIC, UNC, or as required|
|Surface Coating||Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request|
|Manufacturing Process||Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing.|
Machining: Machining stainless steel A2-80 hex bolts can be somewhat challenging due to their hardness. Carbide tooling is recommended for drilling and cutting. It is important to use appropriate cutting speeds and feeds to avoid overheating and work hardening of the material. Lubrication during machining is often necessary to maintain the tool's effectiveness and prolong its lifespan.
Considerations: While A2-80 stainless steel hex bolts offer excellent corrosion resistance, they may not be suitable for extremely high-temperature applications or environments with high levels of chloride exposure, where a more corrosion-resistant grade such as A4-80 (AISI 316 stainless steel) might be preferred. Proper installation, including torque specifications and the use of appropriate washers and nuts, is crucial to ensure the bolts' effectiveness and longevity.
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|A2-80||0.10||1||2||0.05||0.03||15 to 20||-||8 to 19||4|
|Grade||Tensile Strength min. Mpa||Stress at 0.2 % permanent strain Rp0.2a min. Mpa||Elong (% in 4D min)|
Hardness testing to ISO 6508-1
Nut proof load testing to ISO 898-2
Suitability for preloading to EN 14399-2
Calibrated gauges and tools
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