Wholesale 304 Stainless Steel Round bar Factory Price Manufacturers, Suppliers

The alloy composition of stainless steel makes it less likely to rust or corrode in harsh environments such as moisture, chemicals or high temperatures, thus extending the life of the product

Standard: ASTM A276 ASTM A564
Grade: 304 316 321 904l 630
Surface: Black Bright Grinding
Diameter: 1mm to 500mm

Product Description

📋 Overview

304 stainless steel is an austenitic stainless steel alloy that is widely used in various applications due to its excellent corrosion resistance, good mechanical properties and high temperature resistance. 304 stainless steel round bar is a common product made from this alloy. Stainless steel round bar (rough round) can be applied to: metal products, rail transportation, nuclear power, machinery manufacturing, chemical equipment, pressure vessels.

Customized Stainless steel
stainless_round_bar
Features
  • Surface Quality: The surface quality of the round bar material is good (no cracks, no pitting).
  • Corrosion resistance: 304 stainless steel round bar has excellent corrosion and oxidation resistance in various environments, including chemical, marine and industrial environments.
  • High strength: 304 stainless steel round bar has high strength and toughness, making it suitable for applications that require high strength and durability.
  • Easy to process: Conventional methods can be used easily. Large specification range, high roundness, high straightness, small tolerance, and high dimensional accuracy (grinding rod can reach 0.01mm).
  • Good welding and forming properties: Suitable for a wide range of applications and easy to work with.
  • High temperature resistance: Can withstand temperatures up to 870°C (1600°F) without losing its properties.
  • Hygienic: Easy to clean, making it suitable for the food and beverage industry and medical equipment.
Stainless steel round 5
Stainless steel round 4
📐 Standard Stainless Steel Rod Sizes
Type SIZES in milimeter SIZES in inches Tolerance
Peeled and Polished 40.00-150.00 1.50-6.00 h11,h11-DIN 1013
Cold Drawn and Polish 3.00 to 75.00 1/8 to 3.00 h8 to h11
Cold Drawn and Ground 10.00 to 75.00 5/6 to 2.50 h8 to h11
Peeled and Ground 20.00-50.00 3/4-2.00 h9 to h11
🧪 Chemical Composition (ASTM A479)
Grade Carbon Manganese Silicon Sulfur Phosphorus Chromium Nickel Molybdenum
3040.08 max2.00 max0.75 max0.030 max0.045 max18.0-20.08.0-11.0-
3160.08 max2.00 max0.75 max0.030 max0.045 max16.0-18.010.0-14.02.0-3.0
317L0.035 max2.00 max0.75 max0.030 max0.045 max18.0-20.011.0-14.03.0-4.0
310S0.08 max2.00 max0.75 max0.030 max0.045 max24.0-26.019.0-22.03.0-4.0
⚙️ Specifications & Technical Data
Condition Cold drawn & polished Cold drawn, centreless ground & polished Cold drawn, centreless ground & polished (strain hardened)
Grades 201, 202, 303, 304, 304L, 310, 316, 316L, 321, 410, 420, 416, 430, 431, 430f & others 304, 304L, 316, 316L
Diameter 2 mm to 5mm (1/8" to 3/16") 6mm to 22m (1/4" to 7/8") 10mm to 40mm (3/8" to 1-1/2")
Tolerance H9, H11 ASTM A484 H9 ASTM A484 H9, H11 ASTM A484
💪 Mechanical Properties
Density Melting Point Tensile Strength Yield Strength Elongation
8.0 g/cm3 1400 °C (2550 °F) 75000 Psi / 515 MPa 30000 Psi / 205 MPa 35%
🛡️ Quality Assurance
  • Visual Dimension Test
  • Mechanical examining (Tensile, Elongation, Area Reduction)
  • Ultrasonic test & Chemical analysis
  • Hardness & Pitting protection test
  • Intergranular Corrosion & Metallography Experimental Test
🚀 Applications
  • Aerospace: Aircraft structures and engine parts.
  • Food & Beverage: Processing, storage, and transportation equipment.
  • Chemical Industry: Reactors, heat exchangers, and pipelines.
  • Medical: Surgical instruments and implants.
  • Construction: Bridges and infrastructure projects.
  • Automotive: Exhaust systems and suspension components.
round-bar-puzzle
FAQ
Q1: What are the main benefits of 304 stainless steel round bars?
A: They offer excellent corrosion resistance, high strength, ease of machining, and great welding properties, making them suitable for diverse industrial uses.
Q2: Can 304 stainless steel be used in high-temperature environments?
A: Yes, it can withstand temperatures up to 870°C (1600°F) without significant loss of its mechanical properties.
Q3: Is 304 stainless steel suitable for food contact?
A: Absolutely. It is highly hygienic, easy to clean, and resistant to food-based acids, which is why it is widely used in the food and beverage industry.
Q4: What types of finishes are available for these round bars?
A: Common finishes include peeled, polished, cold drawn, ground, and black (hot rolled) surfaces depending on the application requirements.
Q5: What industries commonly use 304 round bars?
A: Key industries include aerospace, medical, chemical processing, automotive, construction, and food processing.
Q6: What quality tests do the products undergo?
A: Quality assurance includes mechanical testing (tensile/hardness), chemical analysis, ultrasonic tests, and corrosion resistance evaluations.

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