Alloy Steel Fasteners Manufacturer & Supplier | Astm A193, A194 & A320 Grades | Vidya Enterprises

Vidya Enterprises is an Alloy Steel Fasteners Manufacturer in India that specializes in manufacturing high tensile, corrosion-resistant alloy steel fasteners suitable for numerous industrial uses. Our fasteners are made of quality alloy steel and have high tensile strength and can withstand both extreme heat and pressure. The usage of Alloy Steel Fasteners is widespread across construction, aviation, automotive, and oil and gas industries.

Being an Alloy Steel Fasteners Supplier in India, we supply you with fasteners such as bolts, nuts, washers, and screws in various grades and specifications. Our fasteners comply with international quality standards, ensuring reliability, structural integrity, and efficient performance in heavy-duty applications. With a focus on precision and durability, we cater to industries requiring robust fastening solutions for critical projects.

Alloy Steel Fasteners – Material & Specification Table

High-Strength Industrial Fastening Solution

High Mechanical Strength & Durability: Alloy Steel Fasteners are made from steels with alloy enriched composition, which offers higher tensile strength and tougher than standard carbon steel fasteners. They have been designed to resist high mechanical loads without failure and to operate in high stress environments. The material's properties are strengthened, meaning that resistance to fatigue during continuous industrial use is increased. This makes them very well suited to critical fastening application in the heavy duty end use.

Heat Resistance & Structural Stability: These fasteners work effectively in high-temperature applications where conventional fasteners might not hold up. They can withstand the operation temperature range from -50℃ to 700℃ depending on the grade, and they are structurally intact in the operation temperature range. The alloy composition reduces the thermal expansion and pressure loads feeling deformation. These provide reliable fastening in high-temperature industrial environment.

Corrosion Resistance & Surface Protection: Alloy Steel Fasteners can be coated with zinc plating, hot dip galvanizing, black oxide and PTFE coating for enhanced corrosion resistance. The surface treatments enhance the resistance to moisture, oxidation and harsh industrial environments. The coating also provides improved durability when used outdoors or in chemical processing applications. This helps to extend the use life and minimise maintenance.

Broad use in Industrial & B2B: Fasteners have a wide range of applications in the oil & gas, petrochemical, power generation, construction, marine and heavy engineering sectors. They come in various types such as bolts, nuts, screws, washers, threaded rods and stud bolts to cater for different types of assembly needs. Multiple grades and standards are available for customized engineering specifications. This versatility makes them a must-have fastening solution for industrial B2B operations.

Alloy steel fasteners are high-strength fastening parts that are specially developed for use in high load, high temperature and high requirements of operation. The fasteners are produced from the alloy steel with the addition of chromium, molybdenum and nickel, etc. that enhance the mechanical strength, hardness and wear and heat resistance. They are more enduring and stronger than regular fasteners, making them appropriate for essential assemblies where conventional fasteners might not be adequate. Alloy steel fasteners can withstand fluctuations in pressure, vibration and temperature, and still provide secure and reliable connections. That gives them a high degree of applicability to industrial systems where continuous stresses and harsh environments are commonplace. They have high mechanical properties and hence are beneficial for better operation safety and service life.

Key Features & Advantages

• High tensile strength for demanding fastening applications
• Excellent performance under mechanical stress
• Suitable for high-temperature and pressure service
• Good hardness and dimensional stability after heat treatment
• Chromium-molybdenum grades offer enhanced elevated-temperature performance
• Available in bolts, nuts, studs, screws, and threaded rods
• Suitable for oil and gas, petrochemical, power, and heavy engineering industries

Chemical Composition

Representative Grade: ASTM A193 Grade B7

Element	Percentage (%)
Carbon (C)	0.37 max.
Manganese (Mn)	0.65–1.10
Chromium (Cr)	0.75–1.20
Molybdenum (Mo)	0.15–0.25
Phosphorus (P)	0.035 max.
Sulfur (S)	0.040 max.
Iron (Fe)	Balance

Mechanical Properties

Property	Value
Tensile Strength	860 MPa min.
Yield Strength	720 MPa min.
Elongation	16% min.
Hardness	35 HRC max.

Equivalent Grade

Standard	Grade
ASTM	A193 Grade B7
UNS	G41400
EN	42CrMo4
DIN	1.7225