Kanakratna Steelage Private Limited

Introduction

Hastelloy C276 Round Bars are premium nickel-molybdenum-chromium alloy products designed to withstand some of the harshest corrosive environments. Known for their exceptional resistance to strong oxidizers, reducing agents, and localized corrosion (pitting, crevice, and stress corrosion cracking), C276 round bars are widely used in chemical processing, marine, pollution control, pulp & paper, and waste treatment industries.

Unlike conventional stainless steels or nickel alloys, Hastelloy C276 has tungsten additions, enhancing its performance in aggressive media such as hydrochloric acid, sulfuric acid, ferric chloride, and wet chlorine gas. The alloy remains versatile, offering high strength, weldability, and durability in both ambient and elevated temperature conditions.

Round bars made from C276 are used for shafts, fasteners, valves, pumps, fittings, and structural components that require both mechanical strength and outstanding corrosion resistance.

This document provides a comprehensive 4000-word guide on Hastelloy C276 Round Bars, covering grades, specifications, mechanical properties, processing, applications, suppliers, and market analysis.

Typical Chemical Composition (% by weight):

 

• Nickel (Ni): Balance (~57%)

• Molybdenum (Mo): 15 – 17%

• Chromium (Cr): 14.5 – 16.5%

• Iron (Fe): 4 – 7%

• Tungsten (W): 3 – 4.5%

• Cobalt (Co): 2.5% max

• Manganese (Mn): 1% max

• Vanadium (V): 0.35% max

• Carbon (C): 0.01% max

• Silicon (Si): 0.08% max

• Phosphorus (P): 0.04% max

• Sulfur (S): 0.03% max

Mechanical Properties

 

Packaging & Supply

• Export seaworthy wooden boxes.

• Plastic wrapping to avoid oxidation.

• Bar ends protected with caps.

Applications of Hastelloy C276 Round Bars
Chemical Processing Industry
Marine & Offshore
Pollution Control
Pulp & Paper Industry
Pharmaceutical & Food Industry
Nuclear & Power Generation

Additional Information:

• Production Capacity: 50 tons
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

 Introduction

Hastelloy C276 is one of the most corrosion-resistant metal alloys developed for use in aggressive environments. Recognized under the Unified Numbering System as UNS N10276, this nickel-molybdenum-chromium superalloy is highly versatile and widely used in industries like chemical processing, power generation, and marine engineering. The Hastelloy C276 round bar is a popular product form used in high-stress, corrosion-prone environments where strength, longevity, and safety are essential.

This document offers a thorough overview of Hastelloy C276 round bars, covering composition, mechanical properties, corrosion resistance, fabrication, applications, standards, and sourcing considerations.

Chemical Composition of Hastelloy C276

The alloy’s strength and corrosion resistance come from its carefully balanced chemical makeup. Below is the typical composition:

 

Key Mechanical Properties

Hastelloy C276 round bars exhibit impressive mechanical performance, especially at elevated temperatures:

Hot and Cold Working

• Hot working range: 1600°F – 2250°F (870°C – 1230°C)

• Cold working: Possible with intermediate annealing

• Annealing should be done at 2050°F (1120°C) followed by rapid quenching to prevent sensitization.

ndustry Standards

• ASTM B574 (standard specification for round bars)

• ASME SB-574

• EN 10088-3

• ISO 15156 (NACE MR0175 for sour service)

Certifications and Testing

Before deployment, round bars typically undergo:

• Ultrasonic testing (UT)

• Positive Material Identification (PMI)

• Hardness and tensile testing

• Third-party inspection (TPI) reports

 

Additional Information:

• Production Capacity: IN TONS
• Delivery Time: Ready Stock
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes