| 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 pioneer in supplying top-tier quality products globally for many years. We take immense pride in ensuring that Daxun Alloys stands as the premier supplier of SS 431 Round Bars/Rods. We export superior round bars adhering to both national and international quality standards, catering to clients worldwide. Our round bars and rods come in a myriad of specifications. Type 431 is a hardenable martensitic stainless steel alloy known for its exceptional tensile and torsional strength, making it the material of choice for manufacturing robust shafts.
For further details about our stainless steel rods, please connect with Daxun
Intricate 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 are unparalleled, featuring advanced radial forging machines, state-of-the-art heat treatment furnaces, melting furnaces, and rolling mills for manufacturing titanium rods, complemented by a unique hydroforming process for crafting precise parts.
Stainless steel rod heat treatment at Daxun utilizes advanced furnace equipment, ensuring material stability and exceptional performance.
Daxun Stainless Steel employs the world's most advanced vacuum induction furnace, vacuum consumable furnace, and electroslag furnace to minimize impurities during the smelting process, thereby enhancing the performance of the final stainless steel rods.
Our stainless steel products are not just certified; they are fully traceable and meet the highest standards. We proudly supply top-tier stainless steel to leading industries such as aerospace, industrial, medical, marine, and military.
| 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 exhibits exceptional resistance to a diverse array of corrosive environments. It can withstand salt water in colder, southern seas but may face challenges in the warmer tropical waters. Compared to the 304 Grade Material, 431 Round Bar Material offers similar, if not slightly lower, corrosion resistance. Optimal performance is achieved when the material features a smooth surface in a hardened and tempered state.
This alloy resists scaling at temperatures up to 925°C in intermittent service and 870°C in continuous service. However, it's generally not recommended for applications exceeding the relevant tempering temperature due to potential reductions in mechanical properties.
Full anneal is impractical for this grade due to its tendency to harden even with slow cooling. For process annealing, heat to 620-660°C followed by air cooling.
Hardening is achieved by heating the material to 980-1065°C, maintaining this temperature for approximately 30 minutes, followed by quenching in air or oil. Pre-heating at 760-790°C may be beneficial for complex parts or those already hardened. Tempering should be conducted to meet specific mechanical requirements, with temperatures outlined in the accompanying table.
Avoid tempering within the 425-600°C range due to a decrease in impact toughness, although this effect is less pronounced than in most other martensitic grades.
Welding this grade can be challenging due to the risk of cracking. Pre-heating to 200-300°C before welding is advisable. While Grade 410 filler rod is suitable, using Grades 308L, 309, or 310 can result in more ductile welds, provided matching properties are not mandatory. Post-weld heat treatment at 650°C is recommended.
In its annealed state, this grade is relatively easy to machine. However, machining becomes more challenging if the material is hardened beyond 30HRC. The Ugima Improved Machinability version of Grade 431 significantly enhances achievable machining speeds and extends tool life.
This alloy is ideal for manufacturing nuts and bolts, propeller shafting, pump shafts, beater bars, and marine hardware.
The specified properties of this material are for bar products under ASTM A276. Other product forms such as plates and forgings have similar, though not necessarily identical, properties as specified in their respective standards.
Stainless steel round bars are extensively utilized across various sectors, from construction to automotive components. Recognizing their broad applications, Daxun Alloys provides stainless steel round bars in diverse grades and sizes. With our precision advanced cutting service, we ensure your exact specifications are met consistently.
Can you produce stainless steel grinding bars and rods?
Yes, we specialize in producing stainless steel grinding bars and rods with precise dimensions, superior roundness, and exceptional straightness. These qualities surpass those of standard polished bars. Please note, however, that the processing costs are 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, 316L, and 300 series.
Additionally, we supply 400 series, duplex stainless steels such as 2205, 2304, 2101, 2507, and high-nickel alloys like 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Yes, we can manufacture products according to your drawings to ensure they meet your exact specifications and satisfaction.
Q3. How does your factory handle quality control?
Quality is our top priority. We consistently place significant emphasis on quality control from the initial stages through to the final production.
Q4. Can I request changes to the form of packaging and transportation?
Yes, we can adjust the packaging and transportation methods according to your requests.
However, you will need to bear any additional costs and price differences incurred during this process.
Q5. How does your factory handle quality control?
Quality is our top priority. We consistently place significant emphasis on quality control from the initial stages through to the final production.
Q6. What is the delivery time?
A: The delivery time is typically 7 to 20 working days after payment confirmation.
For urgent orders, we can expedite production to meet your timelines.
Q7. What are your payment terms?
A: 100% T/T in advance, or Western Union for small orders.
B: 30% T/T in advance and 70% balance before shipment.
C: 100% Irrevocable LC at sight for large orders.
Q8: Can you produce Deep Drawing Quality (DDQ) materials?
A: Yes, we can. Our material is ideal for producing stainless steel pots, sinks, bowls, etc. Provide us with your usage details, and we will tailor the mechanical properties to meet your requirements.
Q9: How can I get 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 your products?
A: We have exported our stainless steel materials to countries including Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and more.
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