Astm A193 B7 Bolts

Name: Astm A193 B7 Bolts
Brand: Fasteners Online
Availability: InStock
Rating: 1 (1 reviews)

ASTM A193 B7 Bolts

Fasteners Online is a leading ASTM A193 B7 Bolts Manufacturer, offering high-strength alloy steel bolting components manufactured for demanding pressure, temperature, and industrial service conditions. ASTM A193 Grade B7 bolts are commonly produced from chromium-molybdenum alloy steel and are used with compatible nuts in flanged joints, pressure vessels, valves, piping systems, and other critical mechanical assemblies. They are available in hex bolt, heavy hex bolt, stud bolt, and threaded rod configurations according to project requirements.

ASTM A193 B7 Bolts are widely sourced through a B2B Platform for oil & gas, petrochemical, power generation, refineries, chemical processing, pressure vessels, heat exchangers, pipelines, and industrial equipment. Grade B7 offers high tensile strength and is designed for elevated-temperature and high-pressure bolting applications. ASTM A193 B7 Bolts Dealer in India can supply different diameters, lengths, thread configurations, bolt styles, material conditions, surface finishes, and compatible nut combinations according to applicable specifications and project requirements.

ASTM A193 B7 material is based on chromium-molybdenum alloy steel and provides a combination of high strength, toughness, and resistance to elevated-temperature service. Proper heat treatment is essential for achieving the required mechanical properties, while dimensional accuracy and thread quality are important for reliable assembly. Selecting the appropriate bolt diameter, length, thread standard, nut grade, heat treatment condition, and surface finish helps achieve a secure and durable bolted connection.

Material & Grades Table – ASTM A193 B7 Bolts

Material	Grade / Standard	Size / Thickness / Diameter	Extra Specification	Weight (kg/1000 pcs)
Alloy Steel	ASTM A193 Grade B7	1/4"–4" diameter	Chromium-molybdenum alloy steel bolting	Approx. 1–3000
Alloy Steel	ASME SA193 Grade B7	1/4"–4" diameter	Pressure-temperature service applications	Approx. 1–3000
Alloy Steel	ASTM A193 B7	M6–M100 equivalent sizes	High-strength industrial bolting	Approx. 1–3000
Alloy Steel	ASTM A193 B7	Custom lengths	Stud bolts and threaded rod configurations	As per dimensions
Alloy Steel	ASTM A194 2H Compatible Nut	1/4"–4"	Commonly paired nut specification	Approx. 1–2500

Key Features & Advantages

Manufactured according to ASTM A193 Grade B7 requirements
High tensile strength for demanding bolting applications
Suitable for elevated-temperature and high-pressure service
Chromium-molybdenum alloy steel construction
Widely used in oil & gas and petrochemical industries
Suitable for pressure vessels, valves, piping, and flanged joints
Available as bolts, studs, and threaded rods
Compatible with suitable ASTM A194 nut grades
Available with different surface treatments and finishes

Chemical Composition

Grade: ASTM A193 B7

Element	Percentage (%)
Carbon (C)	0.37–0.49
Manganese (Mn)	0.65–1.00
Phosphorus (P)	0.035 max.
Sulfur (S)	0.040 max.
Silicon (Si)	0.15–0.35
Chromium (Cr)	0.75–1.20
Molybdenum (Mo)	0.15–0.25
Iron (Fe)	Balance