| Type: | Stainless Steel Bars |
|---|---|
| Standard: | ASTM, AISI, GB, JIS, DIN, EN |
| Grade: | 431 |
| Certification: | ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS |
| Shape: | Round |
| Technique: | Hot Rolled |
| Samples: |
|---|
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier
| Product Parameters: Stainless Steel rod | |
| Material | 431 |
| Specifications | ASTM A276, ASME SA276 / ASTM A479 ASME SA479 |
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Round Bars | Outside Diameter in the range of 4mm to 500mm |
| Bright Bars | Outside Diameter in the range of 4mm to 100mm |
| Hex Bars | 18mm - 57mm (11/16″ to 2-3/4″) |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Form | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
| Marking & Traceability | Each Stainless Steel rod is traceable to its producing mill and heat by an identification number etched within 24″ (610mm) of one end. |
| Test Certificate | Manufacturer Test Certificate according to EN 10204 3.1 B |
| Laboratory Test Certificate from Govt. Approved Lab. | |
| Under Third Party Inspection | |
| Testing & Inspection | Visual inspection • Surface roughness measurement • Helium-leak testing • Scanning Electron Microscopy (SEM) • Auger Electron Microscopy (AES) • Election Spectroscopy for Chemical Analysis (ESCA or XPS) • Particle testing • Moisture testing |
Daxun Alloys has been a beacon of quality, supplying top-notch products worldwide for many years. Renowned as the premier supplier of SS 431 Round Bars/Rods, Daxun Alloys ensures that every product adheres to both national and international quality standards. We offer an extensive range of round bars and rods tailored to various specifications. Type 431 is a hardenable martensitic stainless steel alloy, celebrated for its high tensile and torsional strength, making it ideal for shaft manufacturing.
For further insights on our stainless steel rods, please contact Daxun.
Chemical Composition of 431 Stainless Steel Rod
| SS UNS S43100 Round Bar Chemical Composition | ||
| 431 | Max | Min |
| C | 0.2 | - |
| Cr | 17 | 15 |
| Fe | Balance | - |
| Mn | 1 | - |
| Ni | 2.5 | 1.25 |
| P | 0.04 | - |
| S | 0.03 | - |
| Si | 1 | - |
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Brinell (HB) | Impact Charpy V (J) |
| Annealed * | 862 | 655 | 20 | 285 max | - |
| 204 | 1345 | 1055 | 20 | 388 | 50 |
| 316 | 1295 | 1035 | 19 | 375 | 53 |
| 427 | 1350 | 1080 | 19 | 388 | # |
| 538 | 1140 | 965 | 19 | 321 | # |
| 593 | 1015 | 770 | 20 | 293 | 64 |
| 650 | 960 | 695 | 20 | 277 | 84 |
Our forming capabilities feature cutting-edge radial forging machines, heat treatment and melting furnaces, and rolling mills for titanium rods, complemented by an innovative hydroforming process for part manufacturing.
Our advanced heat treatment furnace ensures the stainless steel rod's material stability and high performance.
Utilizing the world's most advanced vacuum induction furnace, vacuum consumable furnace, and electroslag furnace, Daxun Stainless Steel minimizes impurities during the smelting process, enhancing the performance of our stainless steel rods.
Our stainless steel offerings are comprehensively certified and fully traceable. We are dedicated to providing the utmost quality stainless steel to prestigious industries such as aerospace, industrial manufacturing, medical sectors, marine engineering, and military applications.
| Tensile Strength | Yield Strength | |||||||||||
| Alloy | UNS Designation | Spec. | psi | MPa | ksi | psi | MPa | ksi | Elongation in 2 inches (min.) % | Grain Size Req. | Max. Hardness | Modulus of Elasticity (x106 psi) |
| 304 | S30400 | A249, A312 | 75,000 | 515 | 75 | 30,000 | 205 | 30 | 35 | - | 90 Rb | 28 |
| 304L | S30403 | A270 A312 | 70,000 | 485 | 70 | 25,000 | 170 | 25 | 35 | - | 90 Rb | 28 |
| 304LN | S30453 | A249, A688 | 75,000 | 515 | 75 | 30,000 | 205 | 30 | 35 | - | 90 Rb | 28 |
| 304H | A30409 | A249, A312 | 75,000 | 515 | 75 | 30,000 | 205 | 30 | 35 | 7 or coarser | 90 Rb | 28 |
| The Mechanical Properties of grade 316L Stainless Steel are displayed in the following table. | |||||
| Grade | Tensile Str | Yield Str | Elong | Hardness | |
| (MPa) min | 0.2% Proof | (% in 50mm) min | |||
| (MPa) min | Rockwell B (HR B) max | Brinell (HB) max | |||
| 316 | 515 | 205 | 40 | 95 | 217 |
| 316L | 485 | 170 | 40 | 95 | 217 |
| 316H | 515 | 205 | 40 | 95 | 217 |
| Tensile Strength | Yield Strength | ||||||||
| Alloy | UNS Designation | Spec. | psi | MPa | ksi | psi | MPa | ksi | Elongation in 2 inches (min.) % |
| 321 | S32100 | - | 75,000 | 515 | - | 30,000 | 205 | - | 35 |
| 321H | S32109 | - | 75,000 | 515 | - | 30,000 | 205 | - | 35 |
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 310S | 7.9 g/cm3 | 1402 °C (2555 °F) | Psi - 75000 , MPa - 515 | Psi - 30000 , MPa - 205 | 40% |
| Grade | Tensile Strength | Yield Strength | Elongation | Hardness | |
| (MPa) min | 0.2% Proof | (% in 50mm) min | |||
| (MPa) min | Rockwell C (HR C) | Brinell (HB) | |||
| UNS S31803 / 2205 | 621 | 448 | 25 | 31 max | 293 max |
| UNS S32205 / 2205 | 621 | 448 | 25 | 31 max | 293 max |
| Grade | Property | Value |
| 2507/ S32750 |
Density (g/cm3) | 7.8 |
| 0.2% Offset Yield Strength | 80 ksi | |
| Ultimate Tensile Strength | 116 ksi | |
| 0.1% Offset Yield Strength 0.2% | 91 ksi | |
| Elongation in 2 inches, % | 15% | |
| Hardness Rockwell C | 32 | |
| Impact Energy | 74 ft.-lbs | |
| Density | 0.28 lb per inch3 | |
| Modulus of elasticity | 28 x 10(6) psi | |
| Coefficient of thermal expansion | 7.2 x 10(-6) per of at 68 to 212 of | |
| Thermal conductivity | 8.7 Btu/hr ftoF | |
| Heat capacity | 0.12 Btu/ lb oF | |
| Electrical resistivity | 31.5 x10(-6) ohm-inch |
431 Stainless Steel Bar Material boasts exceptional corrosion resistance across a broad range of corrosive environments. While it may withstand saltwater exposure in cooler southern waters, it is less effective in warmer tropical waters. Comparatively, the corrosion resistance of 431 Round Bar Material is similar to, or slightly less than, that of 304 Grade Material. Optimal performance is achieved with a polished surface in its hardened and tempered state.
This material resists scaling when subjected to intermittent service up to 925°C and continuous service up to 870°C. However, it is generally not advisable to use it at temperatures exceeding the relevant tempering temperature, as this can lead to a decrease in mechanical properties.
Full annealing is impractical for this grade, as it hardens even with slow cooling. Process annealing involves heating to 620-660°C followed by air cooling.
This material is hardened by heating to a range of 980-1065°C, holding for approximately half an hour, then quenching in air or oil. Pre-heating at 760-790°C can be beneficial for complex parts or those already hardened. Tempering should align with mechanical requirements, utilizing the temperature ranges indicated in the accompanying table.
Avoid the tempering range of 425-600°C due to decreased impact toughness, though the effect is less pronounced compared to other martensitic grades.
Welding this material presents challenges due to the risk of cracking. Pre-heating to 200-300°C before welding is advisable. While a 410-grade filler rod can be used, Grades 308L, 309, or 310 will yield more ductile welds if matching properties are not required. Post-weld heat treatment at 650°C is recommended.
In its annealed state, this grade is relatively easy to machine. However, once hardened above 30HRC, machining difficulty increases. A Ugima Improved Machinability version of Grade 431 significantly enhances achievable machining speeds and extends tool life.
Ideal for a variety of applications including nuts and bolts, propeller shafts, pump shafts, beater bars, and marine hardware.
The properties of this material are specified for bar products in ASTM A276. Similar, though not necessarily identical, properties are specified for other products such as plates and forgings in their respective specifications.
Stainless steel round bars are extensively utilized across diverse sectors, from construction to automotive parts. To meet the varied demands, Daxun Alloys provides stainless steel round bars in a wide array of grades and sizes. Our precision cutting service ensures that your specific requirements are met with unparalleled accuracy.
Can you produce SS grinding bars and rods?
Yes, we specialize in manufacturing SS grinding bars and rods with precise dimensions, exceptional roundness, and straightness, surpassing the quality of standard stainless steel polished bars. Please note, however, that the processing cost is higher.
Q1: What products can you offer?
A: We offer a wide range of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 316L 300 series.
Additionally, we provide the 400 series, duplex stainless steels such as 2205, 2304, 2101, 2507, and high-nickel alloys like 904L, 800H, and 600H.
Q2: Can you produce products according to my drawings?
Yes, we can manufacture products tailored to your drawings, ensuring complete satisfaction.
Q3: How does your factory handle quality control?
Quality is our top priority. We maintain stringent quality control measures from start to finish.
Q4: Can I request a change in packaging and transportation?
Yes, we can adjust the packaging and transportation methods per your request,
but you will need to cover any additional costs and differences incurred during the process.
Q5: How does your factory handle quality control?
Quality is our top priority. We maintain stringent quality control measures from start to finish.
Q6: What is the delivery time?
A: Delivery takes 7 to 20 working days after payment confirmation.
If the order is urgent, we will expedite the process to meet your deadlines.
Q7: What are your payment terms?
A: 100% T/T in advance, or Western Union for small orders.
B: 30% T/T upfront and the remaining 70% 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 products like stainless steel pots, sinks, and bowls. Provide your specific usage, and we will adjust the mechanical properties to meet your requirements.
Q9: How can I get a sample?
A: FREE samples are available for your inspection and testing. If you need a small piece, we may cover the courier cost, depending on the situation.
Q10: Which countries have you exported to?
A: We have exported our stainless steel materials to countries including Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and more.
Suppliers with verified business licenses
Audited Supplier 
){kind=link}
){kind=link}