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Technical information

BS 4882 Stud bolt Specification for Bolting for flanges

BS 4882 Stud bolt Specification for Bolting for flanges General requirements and details of dimensions for metric and inch series. Gives materials for use at temperatures between -250°C and 750°C. BS 4882 is a British Standard that specifies the requirements for bolting materials for use in pressure-retaining and structural applications, particularly for high-temperature and high-pressure service. It is often referenced in industries such as oil and gas, power generation, and chemical processing. Scope of BS-4882 Defines bolting materials, including stud bolts, hex bolts, and nuts. Specifies requirements for chemical composition, mechanical properties, dimensions, heat treatment, and testing. Covers materials suitable [...]

2025-01-10T07:29:34+00:00Categories: Technical information|Tags: |
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Zinc-nickel plating for stud bolt

What is Zinc-nickel plating? Zinc-nickel plating ,shorten as ZN-NI Plating ,which is a whitish grey alloy that contains 12 to 18% nickel apart from zinc. This plated alloy offers sacrificial corrosion resistance superior to zinc plating, good alloy distribution and excellent plating thickness distribution. Zinc-nickel plating can also be passivated to a blue or black finish. A commonly referenced specification for Zinc-Nickel plating is SAE AMS 2417. Zinc-Nickel coating is an alloy, meaning Zinc and Nickel co-deposit on the surface of a steel substrate to prevent it from rust and corrosion. The combination of Zinc and Nickel creates a unique [...]

2025-01-05T09:42:10+00:00Categories: Technical information|Tags: |
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ASTM B117 Salt Spray Testing for Xylan coating

ASTM B117 Standard Practice for Operating Salt Spray (Fog) Apparatus ASTM B117 Salt Spray Testing for Xylan coating. Xylan 1070/1424 coating is widely for stud bolt Xylan® 1424 coating applied over a zinc phosphate steel can exceed 1500 hours of ASTM B117 salt fog test. Xylan 1070 is an Organic solvent based, low friction coating normally used over Zinc, Phosphate or other pretreatment to achieve up to 3000 hours salt spray. astm-b117 is a widely used standard issued by ASTM International for evaluating the corrosion resistance of coatings, materials, and products exposed to a saline environment. It defines the procedures for [...]

2025-01-04T02:37:42+00:00Categories: Technical information|Tags: |
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ASTM A194 Gr 7 and A194 Gr 4 Heavy Hex Nuts difference

ASTM A194 Gr 7 vs A194 Gr 4 Heavy Hex Nuts Both ASTM A194 Grade 7 and Grade 4 Hex nuts are used assembled with ASTM A320 L7 or ASTM A193 B16 stud bolts. But in actual practice,A194 grade 4 is not reguarly available in the market.Because Grade 4 is expected to be withdrawn within approximately 2 years. Grade 7 is an acceptable substitute for Grade 4 according ASTM A194 2016 version. In the lastest ASTM A194 Standard.Grade 4 has been already withdrawn. People might have the questions,what if they still want to use A194 grade 4 nuts? Can Grade [...]

2025-01-03T13:48:10+00:00Categories: Technical information|Tags: |
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Stud Bolts Weight Chart in Kg

Looking for the weight list for the Inch Size Stud bolt? The weight of a stud bolt depends on its diameter, length, and material. Below is a reference weight chart for inch-size stud bolts commonly used in industries. The weights provided are approximate and are based on carbon steel material; Weights for stainless steel or alloy materials may be slightly different. You may also check the Stud bolt Weight list Inch size here. Length Stud Bolt Sizes (Weight in Kilograms) 3/8" 7/16" 1/2" 9/16" 5/8" 3/4" 7/8" 1" 1.1/8" 1.1/4" 1.3/8" 1.1/2" 50mm 0.024 0.032 0.044 0.055 0.070 0.103 0.141 [...]

2025-01-03T11:42:25+00:00Categories: Technical information|Tags: |
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ASTM A153/A153M Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

Hot Dip Galvanizing Standard for Stud bolt. Hot-dip galvanizing (HDG) is a process used to coat steel fasteners, such as stud bolts, with a layer of zinc for enhanced corrosion resistance. The process involves dipping the steel into molten zinc, forming a robust, durable, and corrosion-resistant coating. Standards governing hot-dip galvanizing ensure consistency, quality, and performance across applications. Common Standards for Hot-Dip Galvanizing of Stud Bolts: ASTM Standards (USA): ASTM A153/A153M: Covers zinc coatings applied by the hot-dip process on iron and steel hardware, including bolts, nuts, and washers. ASTM A153 A153M Standard Specification for Zinc Coating (Hot-Dip) on Iron [...]

2025-01-02T13:45:26+00:00Categories: Alumium Material, Gasket, Nickel Alloy Materials, Technical information|
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All informations about xylan coating you need to know

Xylan coating is an extreme performance coating, explicitly designed to improve the performance and extend the life of various industrial and consumer products. Xylan coating is a high-performance, fluoropolymer-based coating designed to enhance the durability and functionality of fasteners, components, and industrial parts. It combines corrosion resistance, reduced friction, and high-temperature performance, making it ideal for demanding applications.

2025-01-05T09:28:37+00:00Categories: Technical information|Tags: |
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Continuous Thread Stud Bolt Dimension Table ASME B18.31.2

ASME B18.31.2 - Continuous Thread Stud, Double-End Stud, and Flange Bolting Stud (Stud Bolt) (Inch Series) ASME B18.31.2 This Standard covers the complete dimensional and general data for continuous thread, flange studs (stud bolts), and double-end inch-dimensioned studs. The following configurations are covered: Continuous thread stud: studs that are threaded over their complete length. Flange stud (stud bolt): threaded studs used primarily in applications with flanges covered by ASME B16.5, and made using ASTM A01 bolting materials. Double-end stud (clamping type — identical ends): studs with screw threads of the same length and configuration on each end. This type of [...]

2024-12-30T13:26:30+00:00Categories: Technical information|Tags: |
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Stud Bolts & Hex Nuts Material for Flanges

Stud Bolts & Hex Nuts Material for Flanges The Stud Bolt is a threaded rod assembled with 2 heavy hexagon nuts,normally 1 hex nut on each end. Stud Bolts general The quantity of bolts for a flange connection will be given by the number of bolt holes in a flange, diameter and length of bolts is dependent of flange type and Pressure Class of flange. Stud Bolt length are defined in ASME B16.5 standard. The length in inches is equal to the effective thread length measured parallel to the axis, from the first to the first thread without the chamfers [...]

2024-12-28T01:38:17+00:00Categories: Technical information|
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ASME B1.1 – Unified Inch Screw Threads (UN, UNR, and UNJ Thread Forms)

ASME B1.1 - Unified Inch Screw Threads (UN, UNR, and UNJ Thread Forms) Defines thread specifications, including UNC (Unified National Coarse) and UN8 (8 threads per inch), commonly used for stud bolts. Download the ASME B1.1 pdf standard here ASME B1.1 - Unified Inch Screw Threads (UN, UNR, and UNJ Thread Forms) This Standard specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads. (In order to emphasize that unified screw threads are based on inch modules, they may be denoted unified inch screw threads.) Several variations in thread form have been developed for unified threads; [...]

2024-12-27T06:12:38+00:00Categories: Alumium Material, Gasket, Nickel Alloy Materials, Technical information|Tags: |
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