| Customization: | Available |
|---|---|
| Type: | Stainless Steel Bars |
| Standard: | ASTM, AISI, GB, JIS, DIN, EN |
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| 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 delivering unparalleled quality products worldwide for many years. We take pride in ensuring that Daxun Alloys is your premier supplier of SS 431 Round Bars/Rods. We export top-tier round bars that meet both national and international quality standards, offering a variety of specifications to our global clientele. Type 431 is a hardenable martensitic stainless steel alloy renowned for its exceptional tensile and torsional strength, making it the material of choice for manufacturing shafts and other high-stress components.
For more information on stainless steel rods, please contact Daxun.
431 Stainless Steel Rod Chemical Composition
| 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 are unparalleled, featuring state-of-the-art radial forging machines, heat treatment furnaces, melting furnaces, and rolling mills for titanium rods, as well as an innovative hydroforming process for part manufacturing.
Our advanced heat treatment furnace equipment ensures the stability and high performance of stainless steel rods, maintaining excellence throughout the process.
Utilizing the world's most sophisticated vacuum induction furnace, vacuum consumable furnace, and electroslag furnace, Daxun Stainless Steel minimizes impurities during the smelting process, thereby enhancing the performance of the finished stainless steel rods.
Our stainless steel products come with full certification and traceability, ensuring top-tier quality. We cater to leading industries such as aerospace, industrial, medical, marine, and military, meeting their stringent requirements with excellence.
| 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 against a vast array of corrosive environments. It demonstrates a moderate resilience to saltwater in colder southern regions, though it may falter in warmer tropical waters. On the whole, the corrosion resistance of 431 Round Bar Material aligns closely with, or is marginally inferior to, that of 304 Grade Material. Optimal performance is achieved when the material maintains a smooth surface in its hardened and tempered state.
This material withstands scaling up to 925°C in intermittent service and 870°C in continuous service. However, it is generally ill-advised to use it at temperatures surpassing the pertinent tempering temperature due to a potential decline in mechanical properties.
Full Anneal - This process is impractical for this grade as it tends to harden even with slow cooling. Process Anneal - Heat to a range of 620-660°C and allow it to air cool.
Hardening is achieved by heating to a temperature range of 980-1065°C, holding for approximately 30 minutes, then quenching in air or oil. Pre-heating at 760-790°C can be advantageous for intricate parts or those that are already hardened. Tempering should be done to meet specific mechanical needs, at temperatures specified in the accompanying table.
Avoid tempering within the 425-600°C range due to a decrease in impact toughness. However, this effect is less pronounced in 431 compared to other martensitic grades.
Welding poses challenges due to a propensity for cracking. Pre-heating to 200-300°C is advised prior to welding. Grade 410 filler rod can be employed, but using Grades 308L, 309, or 310 will yield more ductile welds if matching properties are not essential. Post-weld heat treatment at 650°C is recommended.
In its annealed state, this grade is relatively easy to machine. However, machining becomes more complex if the material is hardened to above 30 HRC. The Ugima Improved Machinability variant of Grade 431 offers a significant enhancement in machining speeds and tool longevity.
Common applications include nuts and bolts, propeller shafting, pump shafts, beater bars, and marine hardware.
These properties are stipulated for bar products in ASTM A276. Similar, but not necessarily identical, properties are prescribed for other product forms such as plates and forgings within their respective specifications.
Stainless steel round bars from Jiangsu Daxun Alloy Co., Ltd. are extensively utilized across various sectors, ranging from construction to automotive parts. Given this diversity, Daxun Alloys provides stainless steel round bars in multiple grades and sizes. Our advanced cutting service ensures precise customization to meet your exact requirements every time.
Can you provide stainless steel grinding bars and rods?
Yes, we specialize in crafting stainless steel grinding bars and rods with unparalleled precision in dimension, roundness, and straightness. These are superior to polished stainless steel bars, though they come with higher processing costs.
Q1: What products can you offer?
A: We offer an extensive range of steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 316L.
We also stock 400 series and duplex stainless steels like 2205, 2304, 2101, 2507, and high-nickel alloys including 904L, 800H, and 600H.
Q2. Can you produce products according to my drawings?
Absolutely, we can manufacture products tailored to your drawings, ensuring they meet your utmost satisfaction.
Q3. How does your factory ensure quality control?
Quality is our top priority. We consistently place significant emphasis on quality control from start to finish.
Q4. Can I request changes in packaging and transportation?
Yes, we can adapt the packaging and transportation methods to your requirements.
However, you will need to bear any additional costs incurred during this process.
Q5. How does your factory handle quality control?
Quality is paramount. We always prioritize stringent quality control throughout the entire production process.
Q6. How long is the delivery time?
A: Delivery takes 7 to 20 working days after payment confirmation.
For urgent orders, we expedite production to meet your timeline.
Q7. What are your payment terms?
A: 100% T/T in advance, Western Union for small orders.
B: 30% T/T with the balance 70% due before shipment.
C: 100% Irrevocable Letter of Credit (LC) at sight for large orders.
Q8: Can you produce Deep Drawing Quality (DDQ) materials?
A: Yes, our materials are suitable for items like stainless steel pots, sinks, and bowls. Provide your usage specifics, and we will adjust the mechanical properties accordingly.
Q9: How can I get a sample?
A: We offer FREE samples for your evaluation. For small pieces, we may cover the courier cost depending on the situation.
Q10: Which countries have you exported to?
A: We have exported stainless steel materials to countries including Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and many more.
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