Hardness testing to ISO 6508-1
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A Stainless Steel A2-70 Hex Bolt is a specific type of fastener made from A2-70 stainless steel, which is a common designation for a particular grade of stainless steel. Let's explore the features and common uses of A2-70 hex bolts:
Features:
Common Applications: A2-70 stainless steel hex bolts find use in a wide range of applications, including:
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. |
It's important to note that while A2-70 stainless steel provides good corrosion resistance in many environments, it may not be suitable for highly corrosive conditions, such as marine environments. In such cases, a higher-grade stainless steel, like A4-70 (AISI 316 stainless steel), which contains more nickel and molybdenum, would be a better choice for improved corrosion resistance. Additionally, the specific application requirements, including load-bearing capacity and environmental factors, should always be considered when selecting fasteners like A2-70 hex bolts.
To preserve the high standards of our selection of industrial Hex Bolt, we have always adhered to a systematic quality management process.
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Grade | C | Mn | P | S | Si | Cr | Ni | Cu | |
A2-70 | Min | - | - | - | - | - | 15.0 | - | - |
Max | 0.1 | 2.0 | 0.05 | 0.03 | 1.0 | 20.0 | 19.0 | 4.0 |
Grade | Yield Strength 0.2% Proof (MPa) min | Elong (% in 4D min) | Red of Area (% min) |
A2-70 | 700 | 450 | 40 |
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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