| 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 the epitome of excellence in supplying premium-quality products worldwide for many years. Renowned for being the best supplier of SS 431 Round Bars/Rods, we export top-tier round bars that adhere to both national and international quality standards. Our extensive range of specifications ensures we meet the diverse needs of our global clientele. Type 431 is a hardenable martensitic stainless steel alloy celebrated for its high tensile and torsional strength, making it the material of choice for manufacturing robust shafts.
For more information on our exceptional 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 include cutting-edge radial forging machines, heat treatment furnaces, melting furnaces, and rolling mills optimized for manufacturing titanium rods. Additionally, we employ a unique hydroforming process for crafting high-quality parts.
Our advanced heat treatment furnace equipment ensures the stability and high performance of our stainless steel rod materials.
Using the world's most advanced vacuum induction furnace, vacuum consumable furnace, and electroslag furnace, Daxun Stainless Steel minimizes impurities during the smelting process, thereby enhancing the performance of our finished stainless steel rods.
Our stainless steel products are fully certified and traceable, ensuring the highest quality standards. We proudly supply premium stainless steel to leading industries such as aerospace, industrial, medical, marine, and military sectors.
| 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 diverse array of corrosive environments. While it demonstrates some resilience to saltwater exposure in cooler southern seas, its effectiveness diminishes in the warm, tropical waters. Compared to 304 Grade Material, the corrosion resistance of 431 Round Bar Material is approximately on par or slightly inferior. Optimal performance is achieved with a smooth surface, especially in its hardened and tempered state.
Our 431 Stainless Steel Rod resists scaling in intermittent service up to 925°C and in continuous service up to 870°C. However, it is generally not recommended for applications at temperatures above its tempering threshold due to a decline in mechanical properties.
Full anneal is impractical for this grade, as it hardens even when cooled slowly. For process annealing, heat to 620-660°C and air cool to achieve desired properties.
Hardening is achieved by heating between 980-1065°C, holding for approximately 30 minutes, then quenching in air or oil. Pre-heating at 760-790°C is beneficial for intricate parts or those already hardened. Tempering should be performed according to mechanical requirements, at temperatures specified in the accompanying table.
Avoid tempering within the 425-600°C range due to a reduction in impact toughness, albeit to a lesser extent than in most other martensitic grades.
Welding presents challenges due to the risk of cracking. Pre-heating to 200-300°C is advisable before welding. While Grade 410 filler rod can be used, Grades 308L, 309, or 310 yield more ductile welds, provided matching properties are not a requirement. Post-weld heat treatment at 650°C is recommended.
In its annealed state, this grade is relatively easy to machine. Once hardened above 30HRC, machining becomes more difficult. However, the Ugima Improved Machinability version of Grade 431 offers a significant boost in machining speeds and tool longevity.
Perfect for a range of uses including nuts and bolts, propeller shafting, pump shafts, beater bars, and marine hardware.
These properties are specified for bar products in ASTM A276. Similar but not necessarily identical properties are specified for other forms like plate and forgings in their respective specifications.
Stainless steel round bars from Daxun Alloys are highly sought after, spanning applications from construction to automotive components. Due to their versatility, we offer these bars in various grades and sizes. With our advanced, complimentary cutting service, we guarantee precise fulfillment of your specifications every time.
Do you provide stainless steel grinding bars and rods?
Yes, we specialize in producing stainless steel grinding bars and rods that boast superior precision in dimension, roundness, and straightness compared to polished bars. However, this high-quality processing incurs a higher cost.
Q1: What products can you offer?
A: We offer a diverse range of stainless steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, and 316.
Our portfolio also includes the 400 series, duplex stainless steels like 2205, 2304, 2101, 2507, and high-nickel alloys such as 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Yes, we can manufacture products based on your personalized drawings to ensure utmost satisfaction.
Q3. How does your factory manage quality control?
Quality is our top priority. We implement rigorous quality control measures throughout every stage of production.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can adjust the packaging and transportation methods according to your preferences.
However, please note that you will need to cover any additional costs and price differences incurred during this period.
Q5. How does your factory manage quality control?
Quality is our top priority. We implement rigorous quality control measures throughout every stage of production.
Q6. How long is the delivery time?
A: Delivery time ranges from 7 to 20 working days after payment confirmation.
For urgent orders, we can expedite the production timeline to meet your needs.
Q7. What are your payment terms?
A: 100% T/T 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 provide DDQ (Deep Drawing Quality) materials?
A: Yes, we can. Our materials are perfect for manufacturing stainless steel pots, sinks, and bowls. Share your specific requirements, and we will tailor the mechanical properties to suit your needs.
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, subject to conditions.
Q10: To which countries have you exported your products?
A: We have proudly exported our stainless steel materials to numerous countries, including Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and many more.
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