Hastelloy C4 Seamless Tube

UNS N06455 | 2.4610 | ASTM B622

Hastelloy C4 Seamless Tube (N06455 / 2.4610) is manufactured to ASTM B622 from tube billet, cold-drawn to the required outside diameter and wall thickness. Supplied from our Wenzhou mill with EN 10204 3.1 mill test certificate, PMI and dimensional inspection on request.

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Hastelloy C4 Product Overview and Advantages

Item	Description
	Introduction: Seamless Stainless Steel C4 Tube, also known as Hastelloy C4 tubing, is a premium nickel-chromium-molybdenum alloy tube designed for the most demanding industrial applications. Produced from a single solid billet without welds, these tubes provide exceptional structural integrity, high-temperature stability, and superior resistance to aggressive chemical environments. Their unique low-carbon, low-silicon composition prevents grain-boundary precipitates, making them ideal for long-term operation under extreme conditions.

Item

Description

Introduction:
Seamless Stainless Steel C4 Tube, also known as Hastelloy C4 tubing, is a premium nickel-chromium-molybdenum alloy tube designed for the most demanding industrial applications. Produced from a single solid billet without welds, these tubes provide exceptional structural integrity, high-temperature stability, and superior resistance to aggressive chemical environments. Their unique low-carbon, low-silicon composition prevents grain-boundary precipitates, making them ideal for long-term operation under extreme conditions.

Key Features of Seamless Hastelloy C4 Tubing

Item	Description
	Exceptional High-Temperature Stability Maintains mechanical strength and corrosion resistance at temperatures ranging from 650°C to 1040°C (1200°F to 1900°F). Resistant to embrittlement, even after prolonged high-temperature exposure. Outstanding Corrosion Resistance Performs reliably against a wide range of oxidizing and reducing acids. High chromium and molybdenum content enhances resistance to pitting, crevice corrosion, and intergranular attack. High Pressure and Stress Tolerance Seamless construction ensures safety under extreme internal pressures and mechanical stress. Ideal for high-performance piping and heat exchanger applications. Superior Weldability Can be welded using standard techniques without risk of post-weld corrosion. Supports complex industrial fabrications while maintaining long-term durability.

Item

Description

Exceptional High-Temperature Stability
- Maintains mechanical strength and corrosion resistance at temperatures ranging from 650°C to 1040°C (1200°F to 1900°F).
- Resistant to embrittlement, even after prolonged high-temperature exposure.
Outstanding Corrosion Resistance
- Performs reliably against a wide range of oxidizing and reducing acids.
- High chromium and molybdenum content enhances resistance to pitting, crevice corrosion, and intergranular attack.
High Pressure and Stress Tolerance
- Seamless construction ensures safety under extreme internal pressures and mechanical stress.
- Ideal for high-performance piping and heat exchanger applications.
Superior Weldability
- Can be welded using standard techniques without risk of post-weld corrosion.
- Supports complex industrial fabrications while maintaining long-term durability.

Hastelloy C4 Product Specifications and Data

To provide a comprehensive overview of this high-performance material, here are the detailed technical specifications and performance data for C4.

The composition of C4 is carefully balanced to achieve its superior corrosion resistance and high-temperature stability.

Chemical Composition of C4

Grade	C	Si	Mn	P	S	Cr	Mo	Ni	Ti	Cu	Co	Fe
Seamless Stainless Steel C4 Tube – High	≤0.015	≤0.08	≤1.00	≤0.04	≤0.03	14.00-18.00	14.00-17.00	Bal	≤0.70	≤0.50	≤2.00	≤3.00

C4 is specifically designed to maintain its strength and shape in high-stress, corrosive environments.

Typical Mechanical Properties of C4

Tensile Strength	Yield Strength	Elongation	Hardness
≥ 690 MPa	≥ 275 MPa	≥ 42%	≤ 100 HRB

These physical properties highlight the material's ability to perform reliably under a wide range of conditions.

Typical Physical Properties of C4

Density	Melting Point	Thermal Expansion	Thermal Conductivity	Modulus of Elasticity	Electrical Resistivity
8.64 g/cm³	1335-1380 ℃	10.8 µm/m·℃	10.1 W/m·K	208 GPa	1.25 µΩ·m

Applications of Seamless Stainless Steel C4 Tube

Item	Details
	Chemical processing and petrochemical plants Marine and seawater desalination systems Nuclear and power generation facilities High-temperature industrial heat exchangers

Why Choose Hastelloy C4 Tubing
Seamless Stainless Steel C4 Tubes combine durability, reliability, and high corrosion resistance, making them the preferred choice for industries where safety and longevity are critical. Their seamless design and superior alloy composition ensure optimal performance in even the harshest environments.

Frequently Asked Questions About Hastelloy C4 Seamless Tubes

What is Hastelloy C4 Seamless Tube?

Introduction: Seamless Stainless Steel C4 Tube, also known as Hastelloy C4 tubing, is a premium nickel-chromium-molybdenum alloy tube designed for the most demanding industrial applications. Produced from a single solid billet without welds, these tubes provide exceptional structural integrity, high-temperature stability, and superior resistance to aggressive chemical environments.

Which standards does Hastelloy C4 Seamless Tube comply with?

Hastelloy C4 Seamless Tube is produced to ASTM B622.

Request a Hastelloy C4 Tube Quotation

Send us your specification for Seamless Stainless Steel C4 Tube – High seamless tube — OD, wall thickness, standard and quantity — and our engineering team will reply with a quotation within 24 hours.