| 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 beacon of excellence in supplying top-quality products worldwide for many years. Renowned as the premier supplier of SS 431 Round Bars/Rods, we offer a diverse range, ensuring alignment with both national and international quality benchmarks. Type 431, a hardenable martensitic stainless steel alloy, boasts exceptional tensile and torsional strength, making it the material of choice for manufacturing robust shafts.
For additional 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 state-of-the-art capabilities include radial forging machines, heat treatment and melting furnaces, rolling mills for titanium rod manufacturing, and a unique hydroforming process for specialized parts.
Our advanced heat treatment furnaces ensure the stability and superior performance of our stainless steel rods.
Utilizing the world's most advanced vacuum induction, vacuum consumable, and electroslag furnaces, we reduce impurities in the smelting process, thereby enhancing the quality and performance of our stainless steel rods.
Our stainless steel products at Jiangsu Daxun Alloy Co., Ltd. boast full certification and complete traceability, ensuring unparalleled quality. We proudly supply top-tier stainless steel to a diverse array of leading industries, including aerospace, industrial manufacturing, medical fields, marine applications, and military operations.
| 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 |
The 431 Stainless Steel Bar Material stands out with its exceptional resistance to a broad spectrum of corrosive environments. While it offers some protection against saltwater in colder southern waters, its performance in warm tropical waters is limited. Overall, the corrosion resistance of 431 Round Bar Material is comparable to, if not slightly less than, that of 304 Grade Material. Optimal performance is achieved with a smooth surface in its 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 annealing is impractical for this grade as it hardens even when cooled slowly. For process annealing, heat the material to 620-660°C and then allow it to air cool.
This grade is hardened by heating to 980-1065°C, holding for approximately 30 minutes, then quenching in air or oil. Pre-heating at 760-790°C may be beneficial for complex parts or those already hardened. Tempering should be done to meet mechanical requirements, within the temperature ranges detailed in the accompanying table.
Avoid tempering in the 425-600°C range due to reduced impact toughness, though the effect is less pronounced than in most other martensitic grades.
Welding can be challenging due to the risk of cracking. A pre-heat of 200-300°C is recommended before welding. Grade 410 filler rod can be used, but Grades 308L, 309, or 310 will produce more ductile welds, provided matching properties are not required. Post-weld heat treatment at 650°C is advised.
In its annealed state, this grade is relatively easy to machine. However, machining becomes more challenging if it is hardened to above 30 HRC. Ugima Improved Machinability versions of Grade 431 provide significant improvements in machining speeds and tool life.
Ideal for use in 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 identical properties are specified for other products, such as plates and forgings, in their respective specifications.
Stainless steel round bars are indispensable across various sectors from construction to automotive parts. Recognizing this diverse application, Jiangsu Daxun Alloy Co., Ltd. offers a broad array of stainless steel round bars available in multiple grades and sizes. With our complimentary advanced cutting service, we ensure precise adherence to your specifications every time.
Can you provide SS grinding bars & rods?
Yes, we can supply SS grinding bars & rods with precise dimensions, roundness, and straightness, surpassing the quality of standard stainless steel polished bars. Please note that the processing cost is higher.
Q1: What products can you offer?
A: We offer a wide range of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 316L 300.
Additionally, we provide 400 series and duplex stainless steels like 2205, 2304, 2101, 2507, and high-nickel alloys such as 904L, 800H, and 600H.
Q2: Can you produce products based on my drawings?
Yes, we can manufacture products according to your provided drawings to ensure maximum satisfaction.
Q3: How does your factory handle quality control?
Quality is our top priority. We maintain strict quality control measures throughout the entire production process.
Q4: Can I request a change in packaging and transportation form?
Yes, we can modify the packaging and transportation form as per your request.
However, you will need to cover any additional costs incurred during this period, including the differences in charges.
Q5: How does your factory manage quality control?
Quality is paramount. We enforce stringent quality control from start to finish.
Q6: What is the delivery time?
A: The delivery time is 7-20 working days after payment confirmation.
For urgent orders, we can expedite the process 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 upfront and the remaining 70% before shipment.
C: 100% Irrevocable LC at sight (for large orders).
Q8: Can you produce DDQ (Deep Drawing Quality) materials?
A: Yes, we can. Our materials are suitable for stainless steel pots, sinks, bowls, etc. Inform us of your requirements, and we will adjust the mechanical properties accordingly.
Q9: How can I get a sample?
A: We offer FREE samples for checking and testing. For small pieces, we can cover the courier cost, depending on the situation.
Q10: Which countries have you exported to?
A: We have exported stainless steel materials to Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and other countries.
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