Global Leader in Stainless Rod and Round Bar Fabrication Services

Daxun Alloys has been delivering top-tier products worldwide for many years. As your trusted supplier of SS 431 Round Bars/Rods, we guarantee superior quality. Our exports adhere to both national and international quality standards, offering a wide array of specifications. Type 431, a hardenable martensitic stainless steel alloy, boasts high tensile and torsional strength, making it ideal for manufacturing shafts.

For more information on our stainless steel rods, please contact Daxun.

431 Stainless Steel Rod Chemical Composition

Our diverse range of stainless steel products comes with full certification and is meticulously traceable, ensuring the highest standards of quality. We proudly supply premium stainless steel to a wide array of leading industries, including aerospace, industrial manufacturing, medical fields, marine engineering, and military applications.

• Corrosion Resistance

  431 Stainless Steel Bar Material boasts outstanding corrosion resistance across a diverse array of corrosive environments. While it shows moderate resistance to saltwater in cool southern waters, its performance may be compromised in warm tropical waters. Generally, the corrosion resistance of 431 Round Bar Material is comparable to, or slightly inferior to, that of 304 Grade Material. Optimal performance is achieved when the surface is smooth and the material is in a hardened and tempered state.

  Heat Resistance

  This material resists scaling at intermittent service temperatures up to 925°C and continuous service temperatures up to 870°C. However, it is typically not recommended for applications exceeding the relevant tempering temperature due to a reduction in mechanical properties.

  Heat Treatment

  Annealing

  Full annealing is impractical for this grade as it hardens even with slow cooling. For process annealing, heat to 620-660°C and allow to air cool.

  Hardening

  Achieve hardening by heating to 980-1065°C, holding for approximately 30 minutes, then quenching in air or oil. Pre-heating at 760-790°C can be beneficial for complex parts or those already hardened. Temper according to mechanical requirements at specified temperatures.

  Avoid the tempering range of 425-600°C due to reduced impact toughness, though the effect is less pronounced than in most other martensitic grades.

  Welding

  Welding this material is challenging due to cracking risks. Pre-heating to 200-300°C is advised prior to welding. While Grade 410 filler rods can be used, Grades 308L, 309, or 310 may provide more ductile welds if matching properties are not required. Perform post-weld heat treatment at 650°C.

  Machining

  In its annealed condition, this grade is relatively easy to machine. However, once hardened above 30HRC, machining becomes more challenging. The Ugima Improved Machinability version of Grade 431 offers significant enhancements in machining speeds and tool life.

  Typical Applications

  Ideal for nuts and bolts, propeller shafting, pump shafts, beater bars, and marine hardware.

  Specified Properties

  These properties are specified for bar products in ASTM A276. Similar attributes are specified for other products such as plate and forgings, although they may not be identical.

  SS 431 Grade Stainless Steel Round Bars

  Stainless steel round bars are extensively utilized across various sectors, from construction to automotive components. Thanks to their versatility, Daxun Alloys provides these bars in multiple grades and sizes. With our advanced free cutting service, we ensure precise fulfillment of your requirements every time.

Can you manufacture SS grinding bars & rods?

Absolutely! Our SS grinding bars and rods boast exceptional precision in dimension, roundness, and straightness, surpassing traditional stainless steel polished bars. However, please note that the meticulous processing involved incurs higher costs.

Q1: What products do you offer?

A: We provide a comprehensive range of stainless steel, including popular grades like 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L 300 series.
Our selection also includes 400 series and duplex stainless steels such as 2205, 2304, 2101, 2507, in addition to high-nickel alloys like 904L, 800H, and 600H.

Q2. Can you produce products based on my drawings?

Yes, we can manufacture products precisely according to your drawings, ensuring they meet your exact specifications.

Q3. How does your factory handle quality control?

Quality is our top priority. We maintain strict quality control measures from the very beginning to the final stages of production.

Q4. Can I request a change in packaging and transportation?

Yes, we can modify the packaging and transportation methods to suit your needs.
However, you will be responsible for any additional costs incurred during this process.

Q5. How does your factory handle quality control?

Quality is our top priority. We maintain rigorous quality control from start to finish.

Q6. What is the delivery time?

A: Delivery typically takes 7 to 20 working days after payment confirmation.
For urgent orders, we can expedite the process to meet your timeline.

Q7. What are your payment terms?

A: 100% T/T advance, Western Union (For Small Orders)

B: 30% T/T deposit and 70% balance before shipment

C: 100% Irrevocable LC at sight (For Large Orders)

Q8: Can you produce DDQ (Deep Drawing Quality) materials?

A: Yes, we can. Our materials are suitable for manufacturing stainless steel pots, sinks, bowls, etc. Inform us of your specific use, and we'll adjust the mechanical properties accordingly.

Q9: How can I obtain a sample?

A: We offer FREE samples for your evaluation and testing. For small pieces, we may cover the courier cost, depending on the situation.

Q10: Which countries have you exported to?

A: To date, we've exported stainless steel materials to countries including Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and others.