Alloy Steel B7 Fasteners


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Arrow Piping Solutions have modern production unit where we provide these fasteners. Alloy Steel B7 Fasteners is one of the most popular products produced and manufactured by Arrow Piping Solutions. Here, our production team makes the product in various sizes along with proper finish. We offer comprehensive quality products under the strict observations of our quality checkers.


Our fundamental aim is to manufacture and distribute precisely designed products. We strive to match our client's demands. We have earned experience and expertise in catering to various industrial segments using our widely produced products. Our production team and a group of quality analysts perform invention and innovation to match the needs of the client.


Arrow Piping Solutions carries a wide range of Alloy Steel B7 fasteners in a variety of size, dimensions standards and tolerance to meet your project's needs—including fasteners in dimension as per ASME B1.1, ASME B18.2.1, ASME B18.2.2, ASME B18.2.8, ASME B18.6.3, ASME B18.21.1, ASME B1.13M Fasteners / DIN , ANSI, JIS, ASTM standards specifications / weight chart & thickness of Grade B7 Alloy Steel fasteners.


Arrow Piping Solutions produce products in various specifications to meet the operational specifications of multiple industries. We distribute our product to numerous clients who are working in differnt domains. Alloy Steel B7 Fasteners has high demand in the chemical production, boilers, oil and gas industry. Apart from this, it is suitable to use in electric power stations and many others.


Arrow Piping Solutions matches client's requirements with proper designing and quality analysis. We dispatch every batch of the product only after performing its thorough testing. Arrow Piping Solutions., guarantee that all our raw materials pass through stringent quality inspections before sending them to our clients. Arrow Piping Solutions. distribute all the products along with its reports and certificates. Here we provide documents in the form of raw materials certificate, radiography test report, and third-party inspection report, etc. All these documents ensure that we produce products that are of high quality and safety. We take the raw material form trustworthy and authorized suppliers; they support us in making our products best.

Alloy Steel B7 Fasteners Specifications

Specification ASTM A193 / ASME SA193
Dimension DIN, ISO, ASTM, JIS, BS, GB, IS and all International Standards
Size Range M3 - M56 | 3/6" to 2" | Custom Sizes
Length 3 mm to 200 mm

Alloy Steel ASTM A193 B7 Grades

Grade Raw Material Description
B7 Chromium Molybdenum Alloy Steel, Quenched & Tempered

Products that are dispatched with proper packing ensure no damage during storage and transportation as well. We have a large production unit, where we have all types of production types of machinery. Also, we have the separate testing room, and it consists of all modern test equipment and tools. Our production team produces products by following the guidelines given in national and international quality standards.

Alloy Steel B7 Fasteners Dimensions

Full Range of Alloy Steel B7 Fastener Products both Imperial & Metric. Dimensions range from M3 to M72

Product Type Standards
Hexagon Bolts / Set Screws DIN 931, DIN 933, BS 1768, UNI 5739, ISO 4014, ISO 4017, ANSI B18.2.1
Stud Bolts BS4882, DIN 976, BS 1769, BS 1083, BS 3692
Hexagon Nuts DIN 934, BS 1768, ISO 4032, ISO 4033, ANSI B18.2.2
Socket Capscrews DIN 912, DIN 6912, DIN 7984, ANSI B18.3, ISO 4762, UNI 5931
Socket & Slotted Set Screws DIN 913, DIN 914, DIN 915, DIN 916, DIN 551, DIN 553, DIN 438
Socket & Slotted Countersunk Screws DIN 963, DIN 7991, BS 4168, BS 1981, BS 2470
Studs DIN 938, DIN 939, DIN 2510, BS 4439, BS 2693
Washers DIN 125, DIN 9021, BS 4320, BS 3410
Spring Washers DIN 127, BS 4464, BS 1802

ASTM A193 B7 Fasteners Chemical Composition

Element C Mn Si P S Mo Cr
Content (%) 0.08-0.15 1.00 max 1.00 max 0.040 0.030 0.15-0.25 11.50-13.50

Alloy Steel ASTM A193 B7 Fasteners Mechanical Properties

Grade Diameter Tensile Strength Yield Strength Elongation Reduction Hardness
Grade B7 M64 and under 860 720 16 50 321 HBW or 35 HRC
Grade B7 Over M64 to M100 795 655 16 50 321 HBW or 35 HRC
Grade B7 Over M100 to M180 690 515 18 50 321 HBW or 35 HRC

Alloy Steel B7 Fasteners Application Industries

  • Textile machinery
  • Oil and gas industry
  • Pulp and paper industry
  • Power plants
  • Energy industries
  • Furniture
  • Pharmaceutical processing industry
  • Modern architecture
  • Home appliances
  • Water waste projects
  • Synthetic fiber
  • Heat exchanger
  • Fluid piping
  • Dairy and food processing