Hastelloy C276 Stud Bolts

Hastelloy C276 stud bolts are corrosion-resistant and can be used in severe chemical environments, acid media, and high temperatures. These bolts are made from UNS N10276 alloy. Alloy C276 stud bolts are common in chemical processing, oil and gas, and marine industries. Standard stainless steel fasteners fail quickly in these conditions. The reduced carbon content of Hastelloy C276 stud bolts helps to minimise the possibility of carbide precipitation in welded assemblies.

Price of Hastelloy C276 Stud Bolts

Hastelloy C276 stud bolt prices are based on size and quantity of order. Certification needs and delivery schedules may add to the expense above standard estimates.

Approx Price Range

The price of Hastelloy C276 stud bolts generally varies from ₹2,700 to ₹2,800 per kg. Size, thread type, and order quantity are the main variables. Custom lengths or tight-tolerance requirements push the price higher.

Price Per Unit / Kg

Hastelloy C276 stud bolts price depends on size and quantity. The smaller sizes between M6 and M16 are generally in the range of ₹20–₹449 per piece. Internationally, larger sizes from M20 to M36 can be up to USD 50 per piece. The weight-based buying for UNS N10276 stud bolts is generally in the range of ₹3,450 per kg to ₹7,150 per kg.

Factors Affecting Price

The key influencer on price is the raw material cost for UNS N10276 alloy. Another consideration is that threads with full thread bolts cost differently from double-end studs. Certification requirements, surface finish, and dimensional tolerances are additional price increases. Order quantity and delivery timeline also impact the final price.

Types of Hastelloy C276 Stud Bolts

Below is a list of the main types of alloy C276 stud bolts available, covering the most commonly ordered configurations across industrial procurement.

Fully Threaded Stud Bolts

Double End Stud Bolts

Tap End Stud Bolts

Continuous Thread Stud Bolts

Specifications of Hastelloy C276 Stud Bolts

Hastelloy C276 stud bolts are bought to standard specifications for use in process piping, pressure vessels, and flanged connections in demanding service environments.

Parameter	Details
Material Grade	Hastelloy C276 / UNS N10276 / W.Nr. 2.4819
Standards	ASTM B574, ASME SB574
Thread Standards	ASME B18.2.1, B18.2.2, DIN 976
Size Range	M6 to M100 / 1/4" to 4"
Length	25 mm to 3000 mm
Hardness	85 HRB max
Finish	Plain, Passivated

Chemical Properties of Hastelloy C276 Stud Bolts

The composition below shows the elements in UNS N10276 stud bolts and how they affect corrosion resistance in both oxidising and reducing environments.

Element	Composition
Ni	Balance
C	0.010 max
Mo	15.00 – 17.00
Mn	1.00 max
Si	0.08 max
Fe	4.00 – 7.00
P	0.04 max
S	0.03 max

Mechanical Properties of Hastelloy C276 Stud Bolts

These values represent the minimum mechanical performance expected from alloy C276 stud bolts manufactured per ASTM B574 under standard testing conditions.

Property	Value
Density	8.89 g/cm³
Melting Range	1370 °C (2500 °F)
Yield Stress (0.2% Offset)	52,000 psi / 355 MPa
Tensile Stress	115,000 psi / 790 MPa
Elongation	40%

Physical Properties of Hastelloy C276 Stud Bolts

Physical property data below is relevant when engineering teams assess thermal performance and material behaviour of Hastelloy C276 stud bolts in high-temperature service.

Property	Value
Density	8.89 g/cm³
Melting Point	1325 – 1370°C
Thermal Conductivity	10.2 W/m·K
Electrical Resistivity	1.30 µΩ·m
Modulus of Elasticity	205 GPa

Dimension Chart of Hastelloy C276 Stud Bolts

Standard dimensional data for UNS N10276 stud bolts covering metric sizes most frequently ordered for flanged piping and structural bolting applications.

Nominal Size	Thread Pitch (mm)	Shank Diameter (mm)	Standard Length Range (mm)
M6	1.0	6.0	25 – 100
M8	1.25	8.0	30 – 150
M10	1.5	10.0	40 – 200
M12	1.75	12.0	50 – 250
M16	2.0	16.0	60 – 300
M20	2.5	20.0	80 – 400
M24	3.0	24.0	100 – 500
M30	3.5	30.0	120 – 600

Key Features of Hastelloy C276 Stud Bolts

C276 stud bolts have a specific set of properties that make them suitable for aggressive service conditions across multiple industries.

Resistant to pitting, crevice corrosion, and stress corrosion cracking
Performs in oxidising and reducing acid environments
Low carbon limits carbide precipitation during heat exposure
Reliable at temperatures up to 1038°C
Maintains mechanical strength through thermal cycling

Applications of Hastelloy C276 Stud Bolts

Alloy C276 stud bolts are specified across industries where aggressive media, high temperatures, or chloride exposure make standard fasteners unsuitable for long-term use.

Chemical Processing

Oil & Gas

Pulp & Paper

Pharmaceuticals

Marine

Pollution Control

How to Choose the Right Hastelloy C276 Stud Bolts Supplier?

Selecting the right C276 supplier matters more than most buyers realise. Stock availability, documentation, and thread compatibility should be confirmed before placing any order.

Supplier Selection Criteria

A Hastelloy C276 stud bolt supplier should maintain stock, not source on demand. Lead time with non-standard alloys is an issue. Always check if they issue mill test reports with each delivery.

Technical Considerations

Make sure the supplier can supply UNS N10276 stud bolts in the thread type you require, be it metric, UNC, or UNF. Also, make sure that they can supply custom lengths when your project requires non-standard sizes.

Quality & Certification Check

ASTM B574 compliance documentation is a baseline requirement. For critical service, ask for heat number traceability and third-party inspection certificates. EN 10204 3.1 certificates are worth requesting on larger orders.

Procurement Tips for Bulk Orders

Send a detailed material specification sheet with every RFQ. Negotiate lead time alongside price. If the order is substantial, ask for a sample batch before committing to full volume. Alloy C276 stud bolts from unreliable sources can have dimensional inconsistencies on-site.