| 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 the epitome of excellence in supplying top-tier quality products across the globe for many years. We pride ourselves on being the leading supplier of SS 431 Round Bars/Rods. Our commitment to quality is evident as we adhere to both national and international standards, catering to clients worldwide with a diverse range of specifications. Type 431, a hardenable martensitic stainless steel alloy, boasts high tensile and torsional strength, making it the perfect choice for manufacturing shafts.
For more 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 forming capabilities feature advanced radial forging machines, heat treatment furnaces, melting furnaces, and rolling mills for manufacturing titanium rods, complemented by a unique hydroforming process for part production.
Employing advanced heat treatment furnace equipment, we ensure the consistency and high performance of our stainless steel rods.
With the world's most sophisticated vacuum induction furnace, vacuum consumable furnace, and electroslag furnace, Daxun Stainless Steel significantly reduces impurities during the smelting process, enhancing the performance of our stainless steel rods.
Our stainless steel products come with full certification and traceability, embodying the pinnacle of quality. We proudly supply top-tier stainless steel to leading 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 |
431 Stainless Steel Bar Material boasts superior corrosion resistance across a broad array of corrosive environments. While it offers some resistance to saltwater in colder southern waters, its performance may not excel in warmer tropical waters. In general, the corrosion resistance of 431 Round Bar Material stands comparable to or slightly below that of 304 Grade Material. Optimal performance is achieved when the material maintains a smooth surface in its hardened and tempered state.
Withstands scaling at intermittent service temperatures up to 925°C and continuous service up to 870°C. However, usage above the specified tempering temperatures is usually discouraged due to a decline in mechanical properties.
Full annealing is impractical for this grade as it hardens even with slow cooling. For process annealing, heat to 620-660°C and then let it air cool.
To harden, heat the material to 980-1065°C, hold for approximately 30 minutes, then quench in air or oil. Pre-heating at 760-790°C is beneficial for intricate parts or those already hardened. Tempering should be done to meet mechanical requirements, adhering to the temperatures in the accompanying table.
Avoid the 425-600°C tempering range due to diminished impact toughness, though the effect is less pronounced than in most other martensitic grades.
Welding is challenging due to cracking risks. Pre-heat the material to 200-300°C before welding. While Grade 410 filler rod can be used, Grades 308L, 309, or 310 provide more ductile welds, provided matching properties are not essential. Post-weld heat treatment at 650°C is recommended.
This grade is relatively easy to machine in its annealed state. However, machining becomes increasingly difficult if hardened beyond 30HRC. The Ugima Improved Machinability version of Grade 431 significantly enhances achievable machining speeds and tool life.
Common uses include 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 necessarily identical, properties are specified for other products like plates and forgings in their respective specifications.
Stainless steel round bars are extensively utilized across various sectors, from construction to automotive parts. Recognizing the breadth of applications, Daxun Alloys offers stainless steel round bars in a diverse range of grades and sizes. With our advanced cutting service, we ensure precise customizations to meet your exact specifications every time.
Can you manufacture SS grinding bars & rods?
Yes, we specialize in producing SS grinding bars and rods with impeccable precision in dimension, optimal roundness, and perfect straightness. These bars surpass traditional stainless steel polished bars in quality, though they come with a higher processing cost.
Q1: What products can you offer?
A: We offer an extensive range of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L 300, and
400 series. Additionally, we provide duplex stainless steel such as 2205, 2304, 2101, 2507, etc., and high-nickel alloys like 904L, 800H, and 600H.
Q2: Can you produce the products according to my own drawings?
Yes, we can precisely manufacture products based on your drawings, ensuring utmost satisfaction.
Q3: How does your factory manage quality control?
Quality is our utmost priority. We meticulously manage quality control throughout the entire production process from start to finish.
Q4: Can I request changes in packaging and transportation?
Absolutely, we can adjust the packaging and transportation methods to meet your specific requirements.
However, please be aware that you will need to cover any additional costs and differences incurred during this period.
Q5: How does your factory manage quality control?
Quality is our utmost priority. We meticulously manage quality control throughout the entire production process from start to finish.
Q6: What is the delivery time?
A: Our standard delivery time is 7-20 working days after payment confirmation.
For urgent orders, we strive to expedite production to finish ahead of schedule.
Q7: What are your payment terms?
A: 100% T/T in advance or Western Union for smaller orders.
B: 30% T/T upfront with the remaining 70% due before shipment.
C: 100% Irrevocable LC at sight for larger orders.
Q8: Can you produce Deep Drawing Quality (DDQ) materials?
A: Yes, we can. Our DDQ materials are ideal for manufacturing stainless steel pots, sinks, bowls, etc. Provide us with your specific requirements, and we will tailor the mechanical properties to meet them.
Q9: How can I obtain a sample?
A: We offer FREE samples for your evaluation and testing. For smaller pieces, we may cover the courier cost, depending on the specifics.
Q10: Which countries have you exported to?
A: We have proudly exported our stainless steel materials to numerous countries, including Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and more.
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