Comprehensive fastener weight charts, size guides, and material technical datasheets for global B2B procurement and engineering teams.
Neelkamal Alloys LLP provides verifiable engineering reference data for global procurement managers, QA/QC inspectors, and structural engineers. Access precision dimensional metrics and weight charts for standard and custom high-alloy fasteners manufactured to ASTM, ASME, DIN, and ISO specifications.
Complete theoretical and practical weight data for Hex Bolts, Heavy Hex Bolts, Allen Socket Cap Screws, U-Bolts, and Eye Bolts across standard metric and imperial dimensions.
Full length-to-weight correlation metrics for fully threaded stud bolts used in high-pressure pressure vessel and flange connection applications.
Dimensions and unit weight standards for Heavy Hex Nuts, Standard Hex Nuts, Thin Jam Nuts, Lock Nuts, and Flange Nuts manufactured under strict mechanical tolerances.
Weight per thousand pieces and thickness reference tables for Flat Washers, Spring Lock Washers, Heavy Duty Washers, and Spherical Washers.
Comprehensive size matching guide correlating pipe nominal diameter, ASME flange pressure rating (150# to 2500#), stud bolt diameter, and required stud length.
Weight per meter and weight per foot data for continuous all-thread rods in corrosion-resistant stainless steels, duplex alloys, and high-temp superalloys.
ASTM A194 Grade 4 specifies carbon-molybdenum alloy steel heavy hex nuts intended for high-pressure and high-temperature service environments in petrochemical refineries and power generating stations.
| Element / Property | Chemical Composition (%) | Mechanical Requirements | Design Service Temperature |
|---|---|---|---|
| Carbon (C) | 0.40 - 0.50 % | Hardness: Rockwell C 24 to 38 | Sub-zero to 550°C (1022°F) |
| Manganese (Mn) | 0.70 - 1.00 % | Proof Load (Stress): 105,000 psi (725 MPa) | High-Pressure Steam Service |
| Molybdenum (Mo) | 0.20 - 0.30 % | Minimum Tensile Strength: 100,000 psi | Refinery & Boiler Environments |
| Silicon (Si) | 0.15 - 0.35 % | Quenched & Tempered Heat Treatment | ASME Pressure Vessel Code Approved |
All technical specifications provided by Neelkamal Alloys LLP are validated through rigorous Quality Control processes. Orders are dispatched with original EN 10204 3.1 Mill Test Certificates (MTC), complete heat-number chemical analysis, mechanical proof testing reports, Positive Material Identification (PMI), and 100% thread dimension check using calibrated ring and plug gauges.
Contact our technical sales team for engineering support, material test certificates, custom drawing reviews, or competitive B2B export pricing.
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