| 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 a trusted supplier of premium quality products worldwide for many years. We proudly assert that Daxun Alloys is the premier supplier of SS 431 Round Bars/Rods range. Our commitment is to export top-tier round bars adhering to both national and international quality standards to our global clientele. We offer a diverse array of specifications to meet unique needs. Type 431 is a hardenable martensitic stainless steel alloy known for its high tensile and torsional strength, making it ideal for manufacturing robust shafts.
For comprehensive 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 encompass state-of-the-art radial forging machines, heat treatment furnaces, melting furnaces, and rolling mills for titanium rod manufacturing, in addition to a unique hydroforming process for part fabrication.
Our stainless steel rod heat treatment utilizes cutting-edge furnace equipment to ensure material stability and superior performance.
Using the world's most advanced vacuum induction furnace, vacuum consumable furnace, and electroslag furnace, Daxun Stainless Steel minimizes impurities during the smelting process, significantly enhancing the performance of our finished stainless steel rods.
Our stainless steel products boast full certification and traceability. We deliver top-tier stainless steel to prestigious sectors such as aerospace, industrial, medical, marine, and military.
| 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 |
Our 431 Stainless Steel Bar Material showcases outstanding corrosion resistance across a broad spectrum of corrosive environments. While it maintains some resilience to salt water in cooler southern waters, its performance in warmer tropical waters may be limited. Comparatively, the corrosion resistance of our 431 Round Bar Material aligns closely with, or is slightly inferior to, that of 304 Grade Material. It delivers optimal results with a smooth surface in hardened and tempered conditions.
Exhibits resistance to scaling in intermittent service up to 925°C and in continuous service up to 870°C. However, it is generally not recommended for applications exceeding the relevant tempering temperature due to potential mechanical property degradation.
Full anneal is not practical for this grade as it hardens even when cooled slowly. For process anneal, heat to 620-660°C followed by air cooling is recommended.
Hardening is achieved by heating to 980-1065°C, holding for approximately 1/2 hour, then quenching in air or oil. Pre-heating at 760-790°C may be beneficial for complex parts or pre-hardened components. Tempering should be done according to mechanical requirements at temperatures indicated in the accompanying table.
Avoid the tempering range of 425-600°C as it results in reduced impact toughness, though this effect is less pronounced in this grade compared to other martensitic grades.
Welding poses challenges due to the risk of cracking. A pre-heat of 200-300°C is advisable before welding. While Grade 410 filler rod can be utilized, Grades 308L, 309, or 310 will yield more ductile welds, provided 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, if hardened beyond 30HRC, machining becomes more problematic. The Ugima Improved Machinability version of Grade 431 significantly enhances achievable machining speeds and tool life.
Versatile applications include nuts and bolts, propeller shafting, pump shafts, beater bars, and marine hardware.
These properties are specified for bar products under ASTM A276. Similar, though not identical, properties are specified for other products such as plates and forgings in their respective specifications.
Stainless steel round bars are extensively utilized across multiple industries, from construction to automotive parts. Recognizing the diverse applications, Daxun Alloys provides stainless steel round bars in various grades and sizes. Leveraging our advanced cutting service, we can precisely meet your specifications every time.
Can you produce stainless steel grinding bars & rods?
Yes, we specialize in producing stainless steel grinding bars & rods with precise dimensions, exceptional roundness, and straightness. They surpass the quality of standard polished bars, although the processing cost is higher.
Q1: What products can you offer?
A: We provide a comprehensive range of steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L, and 300 series.
Additionally, we offer 400 series and duplex stainless steels such as 2205, 2304, 2101, 2507, as well as high-nickel alloys like 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Yes, we can manufacture products according to your detailed drawings to ensure they meet your specific requirements.
Q3. How does your factory manage quality control?
Quality is our top priority. We implement stringent quality control measures throughout the entire production process.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can accommodate changes to the packaging and transportation methods as per your request.
However, you will need to bear any additional costs incurred during this period and any price differences.
Q5. How does your factory manage quality control?
Quality is our top priority. We implement stringent quality control measures throughout the entire production process.
Q6. What is the delivery time?
A: Delivery takes 7 to 20 working days after payment confirmation.
If your order is urgent, we will expedite the production in our workshop to meet your timeline.
Q7. What are your payment terms?
A: 100% T/T in advance or Western Union for small orders.
B: 30% T/T deposit and 70% balance before shipment.
C: 100% irrevocable Letter of Credit at sight for large orders.
Q8: Can you produce DDQ (Deep Drawing Quality) materials?
A: Yes, our materials are suitable for producing stainless steel pots, sinks, bowls, etc. Share your usage details, and we will adjust the mechanical properties to meet your requirements.
Q9: How can I get a sample?
A: We offer FREE samples for your evaluation. For small pieces, we may cover the courier cost based on the situation.
Q10: Which countries have you exported to?
A: To date, we have exported our stainless steel materials to Vietnam, Thailand, Turkey, Russia, Morocco, South Korea, India, Pakistan, UAE, Ukraine, and more.
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