| 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 paragon of excellence, delivering unparalleled quality products worldwide for many years. Renowned as the premier supplier of SS 431 Round Bars/Rods, we adhere to both national and international quality standards, ensuring that our clients receive superior round bars and rods in diverse specifications. 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 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 advanced forming capabilities include state-of-the-art radial forging machines, heat treatment furnaces, melting furnaces, and rolling mills for producing titanium rods. Additionally, we employ a unique hydroforming process for manufacturing intricate parts.
Our advanced heat treatment furnace equipment ensures the stability and high performance of stainless steel rods during the heat treatment process.
Employing the world's most advanced vacuum induction furnace, vacuum consumable furnace, and electroslag furnace, Daxun Stainless Steel minimizes impurities during smelting, significantly enhancing the performance of the finished stainless steel rods.
Our premium stainless steel products come fully certified and traceable, ensuring you receive unparalleled quality. We are proud to supply top-tier stainless steel to a diverse range of 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 outstanding corrosion resistance across a diverse array of corrosive environments. While it shows some resilience to saltwater in cooler southern waters, it may not perform as well in the warm, tropical seas. Comparatively, the corrosion resistance of 431 Round Bar Material is on par with or slightly below that of 304 Grade Material. Optimal performance is achieved when the material has a smooth surface and is in the hardened and tempered state.
This grade 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 above the relevant tempering temperature due to a decline in mechanical properties.
Full anneal is impractical for this grade as it hardens even with slow cooling. Process Anneal involves heating to 620-660°C followed by air cooling.
Hardening is achieved by heating to 980-1065°C, holding for approximately half an hour, then quenching in air or oil. Pre-heating at 760-790°C is advisable for complex parts or those already hardened. Tempering should suit mechanical requirements, as specified in the accompanying table.
The tempering range of 425-600°C is to be avoided due to reduced impact toughness, though the effect is less pronounced than in most other martensitic grades.
Welding this grade is challenging due to the risk of cracking. Pre-heating at 200-300°C is recommended. Grade 410 filler rod can be used, but Grades 308L, 309, or 310 are preferred for more ductile welds if matching properties aren't 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 difficult when hardened above 30HRC. Ugima's Improved Machinability version of Grade 431 significantly enhances machining speeds and tool life.
Common applications include nuts and bolts, propeller shafting, pump shafts, beater bars, and marine hardware.
The specified properties apply to bar products under ASTM A276. Similar but not necessarily identical properties are stipulated for other products like plates and forgings in their respective specifications.
Stainless steel round bars serve various purposes, from construction to automotive parts. Due to their versatile usage, Daxun Alloys provides these bars in multiple grades and sizes. Our advanced and complimentary cutting service ensures precise adherence to your specifications every time.
Can you provide SS grinding bars and rods?
Indeed, we offer SS grinding bars and rods that boast precise dimensions, exceptional roundness, and straightness, surpassing standard stainless steel polished bars. However, please note that this superior processing incurs higher costs.
Q1: What range of products do you offer?
A: Our offerings include a variety of steel types such as 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L, as well as
400 series stainless steels and duplex stainless steels like 2205, 2304, 2101, and 2507. Additionally, we provide high-nickel alloys such as 904L, 800H, and 600H.
Q2. Can you manufacture products based on my custom drawings?
Absolutely, we can manufacture products tailored to your drawings, ensuring the highest level of satisfaction.
Q3. How does your factory ensure quality control?
Quality is our foremost priority. We emphasize rigorous quality control throughout the entire production process.
Q4. Can I request changes in packaging and transportation methods?
Yes, we can modify the packaging and transportation methods to suit your preferences,
though any additional costs incurred during this period will be your responsibility.
Q5. How does your factory ensure quality control?
Quality is our foremost priority. We emphasize rigorous quality control throughout the entire production process.
Q6. What is the estimated delivery time?
A: Delivery typically takes 7 to 20 working days after payment confirmation.
For urgent orders, we will expedite the production process to meet your needs.
Q7. What payment options do you offer?
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 produce Deep Drawing Quality (DDQ) materials?
A: Yes, we can. Our materials are suitable for producing stainless steel pots, sinks, and bowls. Simply specify your requirements, and we will adjust the mechanical properties accordingly.
Q9: How can I obtain a sample?
A: We offer FREE samples for your inspection and testing. For small pieces, we might cover the courier cost, depending on the circumstances.
Q10: To which countries have you exported?
A: We have exported our stainless steel materials to various countries, including Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, the UAE, Ukraine, and many others.
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