JIANGSU CHINA STEEL UNION INDUSTRIAL CO.,LTD.
                                                                                                           
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Heat-Resistant Stainless Steel Plate with Precision Parameters for Industrial Machinery Parts

Price Negotiable
Price: 1.5-1.8USD/KG
MOQ: 1000KG
Delivery Time: 3-5Days
Brand: Jiangsu China Steel Union
Product Description
Heat-Resistant Stainless Steel Plate: The Robust Foundation for High-Temperature Applications
Engineered to perform with unwavering integrity under extreme thermal stress, our Heat-Resistant Stainless Steel Plate is the definitive solution for applications where standard steels fail. This advanced alloy plate maintains exceptional structural strength, resists oxidation, and prevents scaling continuously at temperatures exceeding 600°C (1112°F), ensuring long-term reliability and safety in the most demanding industrial environments. It represents the perfect fusion of material science innovation and practical engineering needs.
Core Characteristics & Selling Points:
The primary advantage of this heat-resistant stainless steel plate lies in its exceptional high-temperature stability. It exhibits superior oxidation and scaling resistance, significantly prolonging service life compared to carbon steels. Furthermore, it retains a high proportion of its room-temperature strength at elevated temperatures, a critical feature for load-bearing components. The product also offers good resistance to sulfidation and thermal fatigue, reducing failure risks from thermal cycling. Its weldability and formability allow for versatile fabrication into complex high-temperature parts.
Technological Principle & Production:
The outstanding performance is rooted in a precise chemical composition and sophisticated metallurgy. The heat-resistant stainless steel plate is alloyed with key elements such as chromium (Cr), silicon (Si), and aluminum (Al). These elements form a dense, adherent, and self-regenerating oxide layer (primarily chromium oxide, Cr₂O₃) on the surface upon exposure to heat. This stable layer acts as a robust barrier, drastically slowing further oxygen diffusion and protecting the core material from degradation. Modern production utilizes controlled electric arc furnace melting, followed by precise hot rolling or forging under strict thermal-mechanical control to achieve a uniform microstructure, optimal mechanical properties, and consistent dimensions.
Material Grades & Specifications
Standard
Common Grades
Key Characteristics
Typical Application Temp. Range
ASTM / AISI
309, 309S, 310, 310S
Excellent oxidation resistance, high Cr & Ni content
Up to 1100°C
ASTM / AISI
314, 330
Enhanced scaling resistance, high Si content
Up to 1150°C
ASTM / AISI
410S, 446
Good resistance, cost-effective options (Ferritic)
Up to 800-900°C
EN / UNS
1.4828, 1.4833, S30815
Variants for specific corrosion/heat conditions
Varies by grade
Applications & Advantages:
This versatile plate is indispensable across numerous industries:
  • Industrial Furnaces & Kilns:​ Used for radiant tubes, muffles, furnace rolls, baskets, and inner shells.
  • Heat Treatment Equipment:​ Essential for fixtures, trays, and conveyor systems.
  • Power Generation:​ Components in boilers, thermal crackers, and exhaust systems.
  • Chemical Processing:​ Parts in reformers, pyrolysis units, and high-temperature reactors.
    The key advantages include extended service life, reducing downtime and replacement costs; enhanced safety and reliability​ under thermal stress; and improved process efficiency​ by withstanding aggressive thermal cycles.
FAQ
  1. 1.
    Q: What is the maximum continuous service temperature for this plate?
    A:​ It varies by grade, typically from 800°C to 1150°C. Grades like 310S can serve continuously up to 1100°C.
  2. 2.
    Q: Can the heat-resistant stainless steel plate be welded and machined easily?
    A:​ Yes, most grades are weldable using compatible electrodes. Machinability is generally lower than standard stainless steel and requires appropriate tools and techniques.
  3. 3.
    Q: How does it differ from standard 304 or 316 stainless steel plate?
    A:​ While 304/316 offer good general corrosion resistance, they rapidly oxidize and lose strength above ~800°C. Heat-resistant grades are specifically alloyed for strength and surface stability at much higher temperatures.
  4. 4.
    Q: Is the Heat-Resistant Stainless Steel Plate delivered with a descaled surface?
    A:​ Standard delivery is hot-rolled with annealed and pickled/descaled surface. Other conditions (e.g., machined) can be supplied upon request.
Our Service Commitment

We provide comprehensive technical support to help you select the optimal grade for your specific temperature and atmospheric conditions. Our products are available in a wide range of standard and custom sizes, thicknesses, and conditions, backed by complete mill test certification (MTC) to guarantee compliance with international standards.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company JIANGSU CHINA STEEL UNION INDUSTRIAL CO.,LTD.
Location Hui'an Road Metal Technology Park, Wuxi, Jiangsu, China
Contact Person Alice

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