| 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 delivering top-notch quality products worldwide for numerous years. We are confident that Daxun Alloys is the premier supplier of SS 431 Round Bars/Rods. We export premium round bars adhering to both national and international quality standards to our global clientele, offering a variety of specifications. Type 431 is a martensitic stainless steel alloy that is hardenable, boasting high tensile and torsional strength. These remarkable properties make it the ideal material for manufacturing shafts.
For further details 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 include cutting-edge radial forging machines, heat treatment furnaces, melting furnaces, and rolling mills for titanium rod manufacturing. We also employ a unique hydroforming process for part manufacturing.
Our advanced heat treatment furnace equipment ensures the stability and high performance of stainless steel rods through precise heat treatment processes.
Daxun Stainless Steel leverages 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 finished stainless steel rods.
Our stainless steel products are fully certified and traceable, ensuring top-notch quality. We proudly supply premium stainless steel to leading sectors such as aerospace, industrial, medical, marine, and military industries.
| 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 exceptional resistance to a diverse array of corrosive environments. While it demonstrates some tolerance to saltwater in cold southern waters, it may not perform as effectively in warm tropical waters. In comparison, the corrosion resistance of 431 Round Bar Material is on par with or slightly inferior to that of 304 Grade Material. Optimal performance is achieved with a smooth surface in its hardened and tempered state.
This material resists scaling when exposed to intermittent service up to 925°C and continuous service up to 870°C. However, it is generally not recommended for use at temperatures exceeding the tempering threshold, due to potential reductions 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 air cool.
This material can be hardened by heating to 980-1065°C, holding for approximately 30 minutes, and then quenching in air or oil. For complex parts or those already hardened, pre-heating at 760-790°C may be beneficial. Temper the material to meet specific mechanical requirements, following the temperature guidelines provided in the accompanying table.
Avoid the tempering range of 425-600°C due to diminished impact toughness, though this effect is less pronounced than in most other martensitic grades.
Welding presents challenges due to the risk of cracking. A pre-heat temperature of 200-300°C is recommended before welding. While Grade 410 filler rod can be used, Grades 308L, 309, or 310 will produce more ductile welds, provided matching properties are not required. Post-weld heat treatment at 650°C is advisable.
In its annealed state, this grade is relatively easy to machine. However, machining becomes more challenging if the material is hardened above 30HRC. The Ugima Improved Machinability version of Grade 431 significantly enhances achievable machining speeds and tool life.
Common applications include nuts and bolts, propeller shafting, pump shafts, beater bars, and marine hardware.
The bar product properties are specified under ASTM A276. While similar, these properties may not be identical to those specified for other products like plates and forgings, which are outlined in their respective standards.
Stainless steel round bars are ubiquitous, spanning applications from construction to automotive parts. Owing to their versatility, Daxun Alloys provides stainless steel round bars in a variety of grades and sizes. Thanks to our advanced, complimentary cutting services, we can precisely meet your specifications every time.
Can you manufacture SS grinding bars & rods?
Yes, we specialize in SS grinding bars & rods, ensuring precise dimensions, roundness, and straightness. These qualities surpass those of standard polished stainless steel bars. However, please note that the processing cost is higher.
Q1: What products do you offer?
A: We provide a wide range of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, and 316.
Additionally, we offer the 400 series and duplex stainless steels such as 2205, 2304, 2101, and 2507. We also supply high-nickel alloys like 904L, 800H, and 600H.
Q2. Can you manufacture products based on my drawings?
Yes, we can produce products according to your drawings, ensuring they meet your utmost satisfaction.
Q3. How does your factory manage quality control?
Quality is our top priority. We emphasize stringent quality control measures from the beginning to the end of the manufacturing process.
Q4. Can I request changes to the packaging and transportation?
Yes, we can modify the packaging and transportation methods according to your requests.
However, you will need to cover any additional costs and price differences incurred during this period.
Q5. How does your factory manage quality control?
Quality is paramount. We consistently prioritize quality control throughout the entire production process.
Q6. What is the delivery time?
A: The delivery time is typically 7-20 working days after payment confirmation.
If the order is urgent, we can expedite the process to complete it ahead of schedule.
Q7. What are your payment terms?
A: For small orders, we accept 100% T/T in advance or Western Union.
B: For other orders, 30% T/T in advance with the balance paid before shipment.
C: For large orders, we accept 100% Irrevocable LC at sight.
Q8: Can you manufacture DDQ (Deep Drawing Quality) products?
A: Yes, we can. Our materials are suitable for stainless steel pots, sinks, bowls, etc. Let us know your specific requirements, and we will adjust the mechanical properties to meet them.
Q9: How can I get a sample?
A: FREE samples are available for your evaluation. If you require a small piece, we can cover the courier cost depending on the situation.
Q10: Which countries have you exported to?
A: To date, we have exported stainless steel materials to countries including Vietnam, Thailand, Turkey, Russia, Morocco, South Korea, India, Pakistan, UAE, Ukraine, and more.
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