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Yasin Fasteners, an Istanbul, Turkey-based reliable manufacturer and supplier of stainless steel 347 washers with outstanding resistance to intergranular corrosion and excellent performance at high temperatures. These washers are produced using a niobium-stabilized austenitic stainless steel alloy, which makes them suitable for use in the frequent heating and cooling cycles. Yasin Fasteners supplies stainless steel 347 washers of different sizes and specifications to sectors including aerospace, chemical processing, thermal equipment, and power generation.
347 stainless steel washers have approximately 17–19% chromium and 9–13% nickel with the stabilization of the alloy using niobium to prevent the precipitation of chromium carbide. This stabilization renders them uniquely well-suited to use in welded structures operating in the temperature range of 425–870°C. The alloy has good mechanical properties, resistance to oxidation, and superior creep strength, particularly at elevated temperature service.
| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
| Element | SS 347 |
| Ni | 9.0 – 13.0 |
| C | 0.08 |
| Mn | 2.0 max |
| P | 0.045 max |
| S | 0.030 max |
| Si | 0.75 max |
| Cr | 17.0 – 19.0 |
| Mo | – |
| N | – |
| Element | SS 347 |
| Tensile Strength (MPa) min | 515 |
| Yield Strength 0.2% Proof (MPa) min | 205 |
| Elongation (% in 50mm) min | 40 |
| Rockwell B (HR B) max Hardness | 92 |
| Brinell (HB) max Hardness | 201 |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
347 stainless steel washers are universally used in boiler tubes, heat exchangers, exhaust systems, and other thermal stress-bearing components. They are particularly suited for uses where high pressure, corrosion resistance, and resistance to high heat are required for fastening operations. They provide safe, long-term connections and protect against surface damage, while maintaining even load distribution, thus making them a reliable option in challenging industrial and thermal processing situations.
We ensure that our Stainless Steel 347 washers are installed with the utmost care to preserve their quality and performance at Yasin Fasteners. Our packaging solutions use durable materials and safe processes to protect washers from damage during transit. Each item is carefully detailed to facilitate identification and inventory management. Whether for small or large orders, our careful packaging process assures that your stainless steel 347 washers arrive in perfect condition, ready for critical use.
Yasin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Istanbul, Turkey, with over 8 years of experience serving global industries.
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