300 Series Stainless Steel

The 300 series is austenitic stainless steel, mainly alloyed with chromium (Cr) and nickel (Ni). It’s non-magnetic, corrosion-resistant, and easy to process, widely used in industry, construction, and daily life. Here’s a concise breakdown:

Core Properties

  • Austenitic structure: Stable with nickel, non-magnetic and ductile at room temp. Work-hardens during cold processing but can’t be strengthened by heat treatment.
  • Corrosion resistance: Chromium forms a protective passive film, while nickel boosts stability. 316 adds molybdenum for better chloride resistance (ideal for seawater/chemicals).
  • High-temperature performance: Grades like 310S handle over 800°C; 321/347 resist intergranular corrosion with titanium/niobium.

Key Grades & Uses

  • 304/304L: 18%Cr+8%Ni (low-carbon 304L). Great for daily use—kitchenware, food equipment, decor, medical tools.
  • 316/316L: Adds molybdenum. Perfect for marine projects, chemical reactors, coastal buildings.
  • 310S: 25% Cr+20% Ni. (up to 1035°C) for furnace parts and high-temperature pipes.
  • 321/347: Stabilized with Ti/Nb. Used in aircraft exhausts and nuclear pressure vessels.
  • 303/303Se: Easy to machine—for precision parts, bolts, electronic.

 

300 Series Stainless Steel vs Other Materials

300 Series Stainless Steel vs Other Materials

Custom Machined Parts in 304 Material from China: Tailored to Your Needs, Flexible and Efficient!

Specializing in custom machined parts made of 304 material, which is corrosion-resistant, high-strength, and highly stable, suitable for various industries including machinery, electronics, and chemicals. We support precision processing based on your drawings, replication of sample details, and offer free professional design services to optimize your structure and reduce costs.
There is no minimum order quantity; we can customize even a single piece to meet your small-batch trial production and personalized needs. Bulk orders enjoy significant discounts, making it more cost-effective to order in large quantities. We control quality throughout the process from design to delivery, ensuring timely delivery and reliable precision, so your customization needs don't have to be compromised.
Whether it's a single part or bulk purchase, we can provide high-quality and cost-effective solutions. Feel free to contact us for consultation at any time!


Customized Machining 300 Series Stainless Steel Parts


 

Advantages of 304 Stainless Steel

A versatile material with exceptional properties for diverse applications

Superior Corrosion Resistance

Contains 18%+ chromium and 8%+ nickel, resisting oxidation and corrosion in most environments, including moisture and mild chemicals.

Excellent Heat Resistance

Maintains mechanical stability at high temperatures, suitable for long-term use in environments up to 800°C.

Strong Mechanical Properties

Combines high strength and toughness with excellent workability, enabling various cold and hot processing methods.

Food-Grade Compliance

Meets food contact safety standards, non-toxic, and does not leach harmful substances, ideal for food processing equipment.

Easy to Clean & Maintain

Smooth surface resists staining and is simple to clean, maintaining an attractive appearance over long-term use.

Fully Recyclable

100% recyclable with high recovery rates, supporting sustainable practices and reducing environmental impact.


Provide low-cost 304 material machining services for various industries

Machinery Manufacturing Industry
Specializing in custom 304 stainless steel machined parts for the machinery manufacturing sector, these parts feature high strength, wear resistance, and low-temperature tolerance, making them ideal for core components such as gears, connectors, and tooling fixtures. We offer precise machining based on provided drawings to match equipment assembly requirements, and replicate parts based on samples to ensure tolerance and fit accuracy. Our free design team can optimize the structure to enhance load-bearing capacity and service life. With a minimum order of one piece, we can meet the needs of equipment maintenance and small-scale trial production. Bulk purchases enjoy tiered discounts, and the quality meets industry standards, ensuring timely delivery without delaying production schedules.

Electronic Equipment Industry
Custom 304 stainless steel machined parts specifically for electronic equipment, featuring rust and moisture resistance, and stable electrical conductivity. These parts are suitable for precision components such as sensor housings, interface assemblies, and heat dissipation brackets. We provide precise machining based on drawings to control dimensional errors, and replicate detailed structures based on samples. Our free design team can help reduce volume and fit into tight installation spaces. There is no minimum order quantity, and both single-piece customization and bulk purchases are supported. Bulk orders enjoy increased discounts, balancing precision and cost, and ensuring the stable operation of electronic equipment.

Chemical Equipment Industry
Custom 304 stainless steel machined parts tailored for chemical applications, featuring acid and alkali resistance, corrosion resistance, and high-temperature tolerance. These parts are suitable for critical components such as pipe fittings, valve assemblies, and reactor accessories. We offer precise machining based on drawings to meet equipment sealing and pressure requirements, and replicate corrosion-resistant process details based on samples. Our free design team can optimize the structure based on the characteristics of the medium. With a minimum order of one piece, we can meet the needs of equipment maintenance and replacement. Bulk purchases enjoy significant discounts, and the quality has passed the corrosion resistance tests of the chemical industry, ensuring safety and reliability.

Four-axis and five-axis precision machining: 300 series stainless steel parts, low cost and fast delivery!

Specializing in 300 series stainless steel (including 304, 316, etc.) precision machining services, relying on four-axis and five-axis processing equipment, we achieve efficient production of complex structures and high-precision parts. The material has advantages such as corrosion resistance, high temperature resistance, and high toughness, suitable for multiple fields such as precision machinery, aviation accessories, and medical devices.
Core advantages directly address the pain points of the market:
Low cost and high value: Optimizing the processing flow, simplifying intermediate links, ensuring accuracy while reducing costs, making precision machining no longer require high investment.
Fast delivery guaranteed: The processing efficiency of four-axis and five-axis equipment doubles, combined with a mature production scheduling system, completing production and delivery within a short period without delaying project progress.
No pressure for single-piece orders: Support for pattern processing and sample processing, no batch threshold required, meeting small batch trial production, personalized customization, emergency replenishment and other needs. Bulk orders enjoy additional discounts.