| 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-tier products worldwide for many years. We are proud to be recognized as the premier supplier of SS 431 Round Bars/Rods range. Our commitment to quality ensures that all exported round bars meet both national and international standards. We provide round bars and rods in various specifications to meet our clients' diverse needs. Type 431, a hardenable martensitic stainless steel alloy, boasts exceptional tensile and torsional strength, making it the ideal material for manufacturing robust shafts.
For further details 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 forming capabilities include advanced radial forging machines, heat treatment furnaces, melting furnaces, and rolling mills for manufacturing titanium rods. We also employ a unique hydroforming process for part manufacturing.
Our state-of-the-art heat treatment furnace ensures the stability and high performance of our stainless steel rods through advanced heat treatment processes.
Daxun Stainless Steel employs the world's most advanced vacuum induction furnace, vacuum consumable furnace, and electroslag furnace. These technologies reduce impurities during the smelting process, thereby enhancing the performance of our finished stainless steel rods.
At Jiangsu Daxun Alloy Co., Ltd., our stainless steel products are not just premium; they are fully certified and traceable. We take pride in supplying the highest quality stainless steel to eminent industries including 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 |
The 431 Stainless Steel Bar Material boasts exceptional corrosion resistance against a multitude of corrosive media. While it exhibits some resilience to salt water in cooler southern waters, it may not perform as well in warmer tropical waters. Its corrosion resistance is comparable to or slightly lower than 304 Grade Material. Optimal performance is achieved in a hardened and tempered condition with a smooth surface finish.
431 Stainless Steel resists scaling in intermittent service up to 925°C and in continuous service up to 870°C. However, it is generally not recommended for usage beyond the relevant tempering temperature due to a reduction in mechanical properties.
Full annealing is not practical for this grade as it hardens even with slow cooling. Process Annealing involves heating to 620-660°C followed by air cooling.
Hardening is achieved by heating to 980-1065°C, holding for approximately 30 minutes, then quenching in air or oil. Pre-heating at 760-790°C can be beneficial for complex parts or those already hardened. Tempering can be tailored to suit specific mechanical requirements, with temperatures outlined in the accompanying table.
The tempering range of 425-600°C should be avoided due to diminished impact toughness, although the effect is less pronounced compared to most other martensitic grades.
Welding this material can be challenging due to cracking risks. Pre-heating to 200-300°C is recommended before welding. While a Grade 410 filler rod can be used, Grades 308L, 309, or 310 will yield more ductile welds if matching properties are not essential. Post-weld heat treatment should be done at 650°C.
In its annealed state, this grade is relatively easy to machine. However, once hardened above 30HRC, machining becomes more challenging. The Ugima Improved Machinability version of Grade 431 significantly enhances achievable machining speeds and tool life.
Ideal for applications such as nuts and bolts, propeller shafting, pump shafts, beater bars, and various marine hardware.
These properties are specified for bar products under ASTM A276. Similar, though not necessarily identical properties, are specified for other products such as plates and forgings under their respective specifications.
Stainless steel round bars are extensively utilized in a broad spectrum of applications, ranging from construction to automotive parts. Acknowledging the diverse usage scenarios, Daxun Alloys provides stainless steel round bars in various grades and sizes. Our state-of-the-art advanced cutting service ensures precise fulfillment of your specific requirements every time.
Can you do SS grinding bar & rod?
Yes, we specialize in SS grinding bar & rod, offering precise dimensions, exceptional roundness, and unparalleled straightness. While this surpasses the quality of polished bars, please note that the processing cost is higher.
Q1: What products can you offer?
A: We provide a broad range of steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 316L 300 series.
Additionally, we offer 400 series and duplex stainless steels such as 2205, 2304, 2101, and 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 tailored to your drawings, ensuring they meet your highest satisfaction.
Q3. How does your factory handle quality control?
Quality is our top priority. We maintain stringent quality control measures from start to finish.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can modify the packaging and transportation forms as per your request,
though you will need to cover any additional costs and the price difference.
Q5. How does your factory handle quality control?
Quality is our top priority. We maintain stringent quality control measures from start to finish.
Q6. How long is the delivery time?
A: Typically, 7-20 working days post-payment confirmation.
For urgent orders, we expedite production to meet your deadlines.
Q7. What are your payment terms?
A: 100% T/T in 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 Deep Drawing Quality (DDQ) materials?
A: Absolutely. Our materials are ideal for applications like stainless steel pots, sinks, and bowls. Just tell us your requirements, and we will tailor the mechanical properties accordingly.
Q9: How can I obtain a sample?
A: We offer FREE samples for your evaluation. If you need a small piece, we may cover the courier costs, depending 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, Korea, India, Pakistan, UAE, Ukraine, and beyond.
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