| 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 premium quality stainless steel products worldwide for many years. Our confidence lies in the unmatched quality of our SS 431 Round Bars/Rods. We proudly export high-caliber round bars that adhere to both national and international quality standards, catering to clients globally. Our round bars and rods come in a plethora of specifications. Type 431, a hardenable martensitic stainless steel alloy, boasts impressive tensile and torsional strength, making it perfect for manufacturing shafts.
Contact Daxun for More Information on Stainless Steel Rods
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 feature cutting-edge radial forging machines, advanced heat treatment furnaces, high-precision melting furnaces, and rolling mills for manufacturing titanium rods. We also utilize a unique hydroforming process for part manufacturing.
Our stainless steel rod heat treatment process employs state-of-the-art furnace equipment to ensure the material's stability and high performance.
Daxun Stainless Steel leverages the world's most advanced vacuum induction furnaces, vacuum consumable furnaces, and electroslag furnaces to minimize impurities and enhance the performance of our finished stainless steel rods.
Our stainless steel products are fully certified and meticulously traceable to ensure the highest standards. We provide top-tier stainless steel to a diverse range of leading industries such as aerospace, industrial, medical, marine, and military sectors. Choose us to experience unparalleled quality and reliability.
| 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 is renowned for its excellent corrosion resistance across a variety of corrosive environments. It shows moderate resistance to salt water in the colder southern waters, though it may not perform as well in warmer tropical waters. Overall, the corrosion resistance of 431 Round Bar Material is comparable to, or slightly less than, that of 304 Grade Material. It delivers optimal performance with a smooth surface in a hardened and tempered state.
This material resists scaling in intermittent service up to 925°C and in continuous service up to 870°C. However, it is generally not recommended for use at temperatures exceeding the relevant tempering temperature due to a reduction in mechanical properties.
Full anneal is impractical for this grade as it hardens even with slow cooling. For process annealing, heat to 620-660°C and allow it to air cool.
Harden by heating to 980-1065°C, hold for approximately 30 minutes, then quench 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, as detailed in the accompanying table.
Avoid the tempering range between 425-600°C due to reduced impact toughness, although the effect is less pronounced compared to most other martensitic grades.
Welding is challenging due to the risk of cracking. Pre-heating at 200-300°C is recommended prior to welding. While Grade 410 filler rod can be used, Grades 308L, 309, or 310 will result in more ductile welds, provided matching properties are not required. Post-weld heat treatment should be conducted at 650°C.
In its annealed condition, this grade is relatively easy to machine. However, machining becomes more difficult when hardened above 30HRC. The Ugima Improved Machinability version of Grade 431 significantly enhances machining speeds and tool life.
Nuts and bolts. Propeller shafting. Pump shafts. Beater bars. Marine hardware.
These properties are specified for bar products under ASTM A276. Although similar, properties specified for other products like plates and forgings may differ as per their respective specifications.
Stainless steel round bars have a wide array of applications, from construction to automotive parts. Due to their versatility, Daxun Alloys offers these bars in various grades and sizes. Our advanced cutting service ensures precise customization to meet your specific requirements each time.
Can you manufacture stainless steel grinding bars and rods?
Absolutely! We specialize in SS grinding bars and rods, known for their precise dimensions, exceptional roundness, and straightness. These qualities surpass those of standard polished stainless steel bars, although the processing costs are higher.
Q1: What range of products can you provide?
A: We offer an extensive selection of general steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 316L.
Additionally, we provide 400 series and duplex stainless steel such as 2205, 2304, 2101, 2507, etc., as well as high-nickel alloys like 904L, 800H, and 600H.
Q2. Can you manufacture products based on my custom drawings?
Yes, we can create products tailored to your specific drawings, ensuring your utmost satisfaction.
Q3. How does your factory manage quality control?
Quality is our top priority. We emphasize rigorous quality control procedures from start to finish.
Q4. Can I request changes in packaging and transportation methods?
Yes, we can adapt the packaging and transportation methods to meet your requirements.
Please note that any additional costs incurred during this change will be your responsibility.
Q5. How does your factory manage quality control?
Quality is our top priority. We emphasize rigorous quality control procedures from start to finish.
Q6. What is your typical delivery time?
A: Our standard delivery time is 7 to 20 working days after payment confirmation.
If your order is urgent, we will expedite the process in our workshop.
Q7. What are your payment terms?
A: We accept 100% T/T advance and Western Union for small orders.
B: For larger orders, we require 30% T/T with the balance paid before shipment.
C: We also accept 100% Irrevocable LC at sight for big orders.
Q8: Do you offer Deep Drawing Quality (DDQ) materials?
A: Yes, we provide DDQ materials suitable for stainless steel pots, sinks, bowls, and more. Inform us of your specific application, and we will adjust the mechanical properties to meet your needs.
Q9: How can I obtain a sample?
A: FREE samples are available for inspection and testing. For small pieces, we may cover the courier cost, depending on the situation.
Q10: To which countries do you export?
A: We have exported stainless steel materials to numerous countries, including Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and more.
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