304H Stainless Steel Solutions
304H Stainless Steel Manufacturing
304H stainless steel is a high-carbon variant of the widely used 304 stainless steel, engineered specifically for superior performance in high-temperature industrial environments. Compared to standard 304, 304H offers enhanced strength at elevated temperatures while maintaining excellent corrosion resistance, making it ideal for critical applications in chemical processing, power generation, and industrial manufacturing.
As a leading 304H stainless steel manufacturer, Hanhuang provides high-quality materials suitable for custom industrial fabrication, including sheets, plates, and bars. Our stainless steel is designed to meet rigorous mechanical and thermal requirements, ensuring long-term durability and reliability in demanding applications.
Whether you are sourcing from a trusted industrial stainless steel supplier or looking for custom manufacturing solutions, 304H stainless steel delivers the perfect combination of high-temperature strength and corrosion resistance for your industrial projects.
304H Stainless Steel By Shapes
Advantages of 304H Stainless Steel
High-Temperature Strength and Durability:
304H stainless steel is engineered for exceptional performance in high-temperature environments, maintaining its mechanical strength and stability even under continuous thermal stress. Its high-carbon composition enhances tensile and yield strength, making it a reliable choice for pressure vessels, heat exchangers, and industrial piping.
Corrosion Resistance and Multi-Functionality:
With excellent resistance to corrosion from water, mild acids, and industrial chemicals, 304H stainless steel ensures long-term durability and minimal maintenance. Its versatility allows it to be used across multiple industries, including chemical processing, power generation, food and beverage, pharmaceutical, and heavy machinery.
Value for Industrial Manufacturing:
Selecting 304H stainless steel provides significant cost-efficiency and reliability for industrial projects. Its long service life, combined with ease of fabrication and consistent performance under demanding conditions, reduces replacement and downtime costs. As a leading 304H stainless steel manufacturer, Hanhuang delivers custom solutions that meet stringent industrial standards, making it a sound investment for long-term manufacturing success.
304H Stainless Steel Key Properties
| Property | 304 Stainless Steel | 304H Stainless Steel | Advantage |
|---|---|---|---|
| Carbon Content | 0.08% max | 0.04–0.10% | Higher strength at elevated temperatures |
| Tensile Strength | 505–700 MPa | 515–750 MPa | Improved mechanical performance |
| Heat Resistance | Up to 800°C | Up to 870°C | Better high-temperature stability |
| Corrosion Resistance | Excellent | Excellent | Maintains corrosion resistance |
Chemical Composition and Performance
304H stainless steel is carefully engineered with a higher carbon content than standard 304, typically around 0.04–0.10% C, along with 18–20% chromium (Cr) and 8–10% nickel (Ni). This composition enhances the alloy’s high-temperature strength while maintaining excellent corrosion resistance in oxidizing and mildly reducing environments. The higher carbon content improves the alloy’s ability to retain mechanical strength at elevated temperatures, making it suitable for industrial manufacturing and high-temperature applications.
Mechanical Properties
304H stainless steel demonstrates outstanding mechanical performance, including:
Tensile Strength: 515–750 MPa
Yield Strength: 205–310 MPa
Elongation: 40–50%
These properties ensure the material can withstand demanding industrial processes such as pressure vessel fabrication, high-temperature piping, and heat exchanger components.
Corrosion and Heat Resistance
304H maintains excellent resistance to corrosion from water, mild acids, and industrial chemicals, similar to standard 304, while offering superior high-temperature performance up to 870°C (1600°F). Its durability under thermal cycling makes it ideal for power generation, chemical processing, and heavy-duty industrial applications.
304H Stainless Steel Standards and Certifications
Compliance with Industrial Standards
304H stainless steel is manufactured to meet stringent international standards, ensuring reliable performance and quality for industrial applications. Hanhuang, as a leading 304H stainless steel manufacturer, ensures that all materials comply with recognized certifications and norms, providing B2B customers with confidence in product reliability and regulatory compliance.
| Standard Type | Designation | Description | Benefit for Industrial Use |
|---|---|---|---|
| UNS | S30409 | Unified Numbering System for 304H stainless steel | Ensures traceability and material specification |
| ASTM | ASTM A240 / A276 | Standard specification for stainless steel plates, sheets, and bars | Guarantees consistent mechanical and chemical properties |
| ISO | ISO 15510 | Stainless steel chemical composition and quality standards | International compliance for global industrial projects |
| EN | EN 10088-3 | European standard for stainless steel – heat-resistant and high-temperature alloys | Provides assurance for European industrial applications |
By adhering to these UNS, ASTM, ISO, and EN standards, 304H stainless steel from Hanhuang meets the strict requirements of industrial manufacturing, chemical processing, and high-temperature applications, ensuring that your projects maintain long-term durability, safety, and regulatory compliance.
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