| 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 established a sterling reputation for providing top-quality products worldwide for many years. We proudly confirm that Daxun Alloys is your premier supplier of SS 431 Round Bars/Rods. Our export-quality round bars adhere to both national and international standards, fulfilling diverse specifications for clients globally. Type 431, a hardenable martensitic stainless steel alloy, is lauded for its high tensile and torsional strength, making it an exceptional choice for manufacturing durable and high-performance shafts.
For more detailed information on 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 forming capabilities include radial forging machines, heat treatment furnaces, melting furnaces, and rolling mills for manufacturing titanium rods. We also utilize a unique hydroforming process for producing high-quality parts.
Our advanced heat treatment furnace equipment ensures the stability and superior performance of our stainless steel rods.
Daxun Stainless Steel employs the world's foremost vacuum induction furnace, vacuum consumable furnace, and electroslag furnace technologies to minimize impurities during the smelting process, significantly enhancing the performance of the finished stainless steel rods.
Our top-tier stainless steel products come fully certified and traceable, ensuring unmatched quality. We proudly supply the finest stainless steel to premier industries, including aerospace, industrial sectors, medical fields, maritime 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 boasts exceptional corrosion resistance across a diverse array of corrosive environments. While it holds some resistance to saltwater in colder southern waters, it may not perform optimally in the warmer tropical waters. Overall, its corrosion resistance is comparable to or slightly less than that of the 304 Grade Material. The material exhibits optimal performance when it features a smooth surface in its hardened and tempered state.
This material can resist 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 above 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 Anneal involves heating to 620-660°C followed by air cooling.
This grade can be 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 benefit complex parts or those already hardened. Temper according to mechanical requirements, adhering to the temperatures indicated in the accompanying table.
Avoid the tempering range of 425-600°C due to reduced impact toughness, although this effect is less pronounced than in other martensitic grades.
Welding this grade can be challenging due to the risk of cracking. Pre-heating to 200-300°C is recommended. While Grade 410 filler rod can be used, Grades 308L, 309, or 310 will yield more ductile welds if 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, if hardened above 30HRC, machining becomes more difficult. The Ugima Improved Machinability version of Grade 431 significantly enhances machining speeds and tool life.
This material is ideal for components such as nuts and bolts, propeller shafting, pump shafts, beater bars, and marine hardware.
These properties are specified for bar products in ASTM A276. Similar, though not necessarily identical, properties are specified for other products like plates and forgings in their respective specifications.
Stainless steel round bars are extensively utilized in various sectors, ranging from construction to automotive parts. Given the broad range of applications, Jiangsu Daxun Alloy Co., Ltd. offers stainless steel round bars in multiple grades and sizes. With our advanced cutting service, tailored to your precise requirements, we guarantee consistent accuracy in every order.
Can you manufacture SS grinding bars & rods?
Yes, we specialize in producing SS grinding bars & rods that boast precise dimensions, impeccable roundness, and unparalleled straightness. These attributes surpass those of polished stainless steel bars, although this precision comes at a higher processing cost.
Q1: What products do you offer?
A: We provide a broad range of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L, and 300 series.
We also offer 400 series and duplex stainless steels such as 2205, 2304, 2101, and 2507, along with high-nickel alloys like 904L, 800H, and 600H.
Q2. Can you manufacture products according to my custom drawings?
Yes, we can produce products based on your custom drawings to meet your exact specifications and satisfaction.
Q3. How do you ensure quality control at your factory?
Quality is our top priority. We consistently emphasize rigorous quality control throughout every stage of the production process, from start to finish.
Q4. Can I request changes to the packaging and transportation methods?
Yes, we can adjust the packaging and transportation methods to suit your preferences.
However, you will need to cover any additional costs and price differentials that may arise during this period.
Q5. How does your factory manage quality control?
Quality is paramount. We place great importance on maintaining high-quality standards throughout the entire production process.
Q6. What is your delivery time?
A: Our standard delivery time is 7-20 working days after payment confirmation.
For urgent orders, we can expedite the process to meet your deadlines.
Q7. What are your payment terms?
A: 100% T/T in advance, Western Union (for small orders).
B: 30% T/T upfront, with the remaining 70% balance before shipment.
C: 100% Irrevocable LC at sight (for large orders).
Q8: Can you produce DDQ (Deep Drawing Quality) material?
A: Yes, we can. Our materials are suitable for making stainless steel pots, sinks, bowls, etc. Share your application with us, and we will tailor the mechanical properties to meet your specific 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 circumstances.
Q10: Which countries have you exported to?
A: To date, our stainless steel materials have been exported to countries including Vietnam, Thailand, Turkey, Russia, Morocco, South Korea, India, Pakistan, UAE, Ukraine, and many others.
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