| 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 proudly supplying top-tier quality products across the globe for numerous years. With an unwavering commitment to excellence, Daxun Alloys stands as the premier supplier of SS 431 Round Bars/Rods. Our export-quality round bars adhere to both national and international standards, assuring clients worldwide of their superior specifications. Type 431, a hardenable martensitic stainless steel alloy, boasts exceptional tensile and torsional strength, making it an ideal material for manufacturing robust shafts.
For comprehensive information on our 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 advanced forming capabilities feature state-of-the-art radial forging machines, cutting-edge heat treatment furnaces, high-efficiency melting furnaces, and precision rolling mills. We also employ a unique hydroforming process for manufacturing high-quality parts.
Our stainless steel rod heat treatment utilizes advanced furnace equipment to ensure material stability and peak performance.
Daxun Stainless Steel employs the world's most advanced vacuum induction furnace, vacuum consumable furnace, and electroslag furnace technology to minimize impurities during the smelting process, significantly enhancing the performance of our finished stainless steel rods.
Our premium stainless steel products boast full certification and traceability, ensuring unmatched quality. We proudly cater to top-tier industries across aerospace, industrial, medical, marine, and military sectors, providing them with the finest stainless steel available.
| 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 outstanding corrosion resistance against a broad spectrum of corrosive environments. While it exhibits some resilience to salt water in colder southern seas, it may not perform as well in the 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 when the surface is smooth and in the hardened and tempered state.
This material resists scaling effectively 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 decline in mechanical properties.
Full annealing is not practical for this grade as it hardens even with slow cooling. For Process Anneal, heat to 620-660°C and then air cool.
Harden this grade by heating to 980-1065°C, holding for approximately 30 minutes, followed by quenching in air or oil. Pre-heating at 760-790°C can be beneficial for complex parts or those already hardened. Temper according to the mechanical requirements, using the temperature guidelines in the accompanying table.
Avoid the tempering range of 425-600°C due to diminished impact toughness; although, the effect is less pronounced than in most other martensitic grades.
Welding this material is challenging due to the risk of cracking. Preheating to 200-300°C is advisable before welding. Using Grade 410 filler rod is possible, but 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 condition, this grade is relatively easy to machine. However, if hardened above 30HRC, machining becomes more difficult. The Ugima Improved Machinability version of Grade 431 significantly enhances machining speeds and tool life.
Common 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 necessarily identical, properties are specified for other products like plate and forgings in their respective specifications.
Stainless steel round bars are extensively utilized across various sectors, from construction to automotive parts. Recognizing the diverse range of applications, Daxun Alloys offers these bars in various grades and sizes. Our advanced cutting service ensures precision, meeting your exact specifications consistently.
Can you provide SS grinding bars and rods?
Yes, we specialize in crafting SS grinding bars and rods with unparalleled precision in dimension, roundness, and straightness. Our products surpass the quality of standard polished stainless steel bars, though this premium process incurs higher costs.
Q1: What range of products do you offer?
A: Our offerings include general steel types such as 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L 300 series,
400 series, as well as duplex stainless steel varieties like 2205, 2304, 2101, 2507. We also provide high-nickel alloy options including 904L, 800H, and 600H.
Q2. Can you manufacture products based on my own drawings?
Yes, we can produce products tailored to your drawings to ensure your utmost satisfaction.
Q3. How does your factory manage quality control?
Quality is our top priority. We are committed to stringent quality control measures from start to finish.
Q4. Can I request changes in packaging and transportation?
Yes, we can accommodate your packaging and transportation requests,
but you will need to cover any additional costs and differences incurred during this period.
Q5. How does your factory ensure quality control?
Quality is paramount. We consistently emphasize rigorous quality control throughout the entire production process.
Q6. What is the delivery timeframe?
A: The delivery time ranges from 7 to 20 working days post 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 of 70% due before shipment
C: 100% Irrevocable LC at sight (for large orders)
Q8: Can you produce Deep Drawing Quality (DDQ) material?
A: Yes, we can. Our materials are suitable for stainless steel pots, sinks, bowls, etc. Share your specific needs, and we will tailor the mechanical properties to meet your requirements.
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, depending on the situation.
Q10: To which countries have you exported?
A: We have exported our stainless steel materials to Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and many other countries.
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