Hardness testing to ISO 6508-1
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Applications needing great strength and exceptional corrosion resistance will find premium choices in stainless steel A4-70 fasteners. A4 70 fasteners guarantee dependability in demanding surroundings by following strict ASTM A193 and ASME SA193 standards. With a tensile strength of 700 MPa, the A4-70 grade is fit for many demanding uses. Particularly in settings rich in chloride, the composition mostly consists of chromium (16–18%), nickel (10–14%), molybdenum (2–3%), and carbon (up to 0.08%). This gives great resistance to pitting and crevice corrosion.
Being a stainless steel A4-70 fastener manufacturer, our main goal is to create premium fasteners that satisfy our customers' rigorous criteria. Our fasteners give peace of mind in their longevity and performance since they are thoroughly tested to guarantee they follow international criteria. Although India's stainless steel A4-70 fastener supplier is competitive, our commitment to accuracy and quality distinguishes us. Using premium materials and cutting-edge production techniques, we create ss a4 70 fasteners that will last under harsh situations and operate consistently over time.
Selecting the appropriate product for their purpose depends on clients and purchasers knowing the particular qualities of a4 70 fasteners. Our a4 70 bolts and a4 70 nuts are made to satisfy performance criteria and highest quality requirements. Because of their great tensile strength and great corrosion resistance, a4-70 fasteners are perfect for building, chemical processing, and marine environments. With the possibility of customizing to fit particular project needs, our extensive line of fasteners guarantees that we have the correct answer for any application.
| Specifications | ASTM A193 / ASME SA 193 |
| Standard | DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards |
| Size | M3 to M90 |
| Length | 10mm to 1000mm |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
| Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Head | Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc. |
| Neck type | Hex, Square, Triangular, Oval & Knurled etc. |
| 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. |
Stainless steel A4-70 fasteners might be priced differently based on size, quantity, and particular need. Usually, each fastener runs from ₹15 to ₹60 per piece. As a top supplier of stainless steel A4-70 fasteners in India, we keep the highest quality standards while providing reasonable prices. Our ss a4-70 fasteners are easily available for quick delivery, guaranteeing your projects' early arrival. Consumers and purchasers can rely on our knowledge and dedication to provide premium goods catered to their requirements.
To preserve the high standards of our selection of industrial fasteners, we have always adhered to a systematic quality management process.
Our staff of experts is vibrant and talented, and they have always been our largest supporters and contributors to our success. Our vision is to create a world of fasteners.
| Grade | C | Si | Mn | P | S | Cr | Mo | Ni | Cu |
| A4-70 | 0.08 | 1 | 2 | 0.045 | 0.03 | 16 to 18.5 | 2 to 3 | 10 to 15 | 4 |
| Grade | Tensile Strength min. Mpa | Yield Strength 0.2% Proof (MPa) min | Elong (% in 50mm) min |
| A4-70 | 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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