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The Fasteners Mart is a well-known Mumbai-based fastener manufacturer and supplier of top-quality fasteners employed in various industrial sectors. It is recognized for its commitment to quality and offers the complete range of fasteners, including the ASTM A193 B7 fasteners. These fasteners are designed specifically to work in high-temperature and high-pressure applications to provide reliability and durability. With the highest priority on quality, accuracy, and customer satisfaction, The Fasteners Mart provides superior products to different industries that are in accordance with international standards and specifications
ASTM A193 B7 fasteners consist of a chromium-molybdenum alloy steel with a composition of 0.30-0.60% carbon, 0.90-1.20% chromium, and 0.15-0.25% molybdenum, and minute traces of manganese, phosphorus, sulfur, and silicon. The fasteners possess excellent mechanical properties, including tensile strength of 125 ksi (860 MPa) and yield strength of 105 ksi (725 MPa). They possess very high resistance towards corrosion, wear, and heat, and find best application where high temperature as well as pressure is involved. With hardness ratings usually between 285-341 HB, ASTM A193 B7 fasteners offer strength and durability in challenging industrial applications.
| Grade | C | Mn | P | S | Si | Cr | Mo |
| ASTM A193 B7 | 0.37 – 0.49 | 0.65 – 1.10 | 0.035 max | 0.04 max | 0.15 – 0.35 | 0.75 – 1.20 | 0.15 – 0.25 |
| Grade | Markings | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA, %, min | Hardness Max |
| B7 | B7 | Up to 2-½ | 125 | 105 | 16 | 50 | C35 |
| 2-5/8 to 4 | 115 | 95 | 16 | 50 | C35 | ||
| 4-1/8 to 7 | 100 | 75 | 18 | 50 | C35 |
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ASTM A193 B7 fasteners have applications in industries that require them to provide maximum strength and also to withstand harsh conditions. Oil and gas, petrochemical, power generation, and aeronautic industries are some of the examples of sectors in which fasteners have to withstand high temperatures, pressure, and corrosive environments. These fasteners are widely used in building pressure vessels, boilers, valves, flanges, and pipelines. Their higher tensile strength and superior resistance to thermal and mechanical stress make them suitable for application where critical application exists in steam systems, gas turbines, and chemical process equipment. ASTM A193 B7 fasteners ensure reliability and safety under tough industrial operation.
ASTM A193 B7 fasteners are carefully packaged so that they remain undamaged throughout shipping, often in wooden cases, crates, or plastic-covered containers with rust-resistant coating so that the integrity of the product is maintained. Each fastener is rigorously tested to ensure compliance with quality standards, like tensile strength, hardness, and dimensional tolerance. The test process ensures that the fasteners perform optimally under high pressure and high-temperature conditions. Compliance certificates and test reports are provided, guaranteeing customers that the fasteners are in accordance with ASTM requirements and industrial standards.
The Fasteners Mart is a leading manufacturer and supplier of high-quality fasteners in Mumbai, India, with over 8 years of experience serving global industries.
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