| 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 long been a beacon of excellence in the stainless steel industry, supplying unparalleled quality products across the globe for many years. We are steadfast in our belief that Daxun Alloys is the premier supplier of SS 431 Round Bars/Rods. We export top-tier round bars in alignment with both national and international quality standards, catering to clients worldwide with a diverse range of specifications. Type 431 is a hardenable martensitic stainless steel alloy, renowned for its high tensile and torsional strength. These attributes make it the material of choice for manufacturing robust shafts.
For more information on our high-quality 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 manufacturing titanium rods, along with a unique hydroforming process for producing intricate 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 most advanced vacuum induction furnace, vacuum consumable furnace, and electroslag furnace to minimize impurities during the smelting process, enhancing the performance of our stainless steel rods.
Our stainless steel products come with comprehensive certification and traceability. We deliver superior quality stainless steel, catering to top-tier industries such as 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 exceptional corrosion resistance across diverse corrosive environments. While it offers some resilience against saltwater in cooler southern regions, its performance may diminish in warmer tropical waters. In general, the corrosion resistance of 431 Round Bar Material is comparable to or slightly below that of 304 Grade Material. Optimal performance is achieved with a smooth surface in hardened and tempered conditions.
431 Stainless Steel Round Rods resist scaling in intermittent service up to 925°C and continuous service up to 870°C. However, usage above the recommended tempering temperature is generally discouraged due to a reduction in mechanical properties.
Full annealing is impractical for this grade due to hardening even with slow cooling. For process annealing, heat to 620-660°C followed by air cooling.
Hardening is achieved 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 or already hardened parts. Temper according to mechanical requirements at specified temperatures.
Avoid the tempering range of 425-600°C due to reduced impact toughness, though the effect is less severe than in many other martensitic grades.
Welding is challenging due to cracking risks. Pre-heat at 200-300°C before welding is recommended. Grade 410 filler rod can be used, but Grades 308L, 309, or 310 yield more ductile welds if matching properties are non-critical. Post-weld heat treatment at 650°C is advised.
In the annealed state, this grade is relatively easily machined. However, machining becomes more difficult when hardened above 30HRC. The Ugima Improved Machinability version of Grade 431 significantly enhances achievable machining speeds and tool life.
Ideal for nuts and bolts, propeller shafting, pump shafts, beater bars, and marine hardware.
These properties are specified for bar products in ASTM A276. Similar yet not necessarily identical properties are designated for other products such as plates and forgings in their respective specifications.
Stainless steel round bars from Daxun Alloys find extensive usage across various industries, from construction to automotive parts. To cater to diverse needs, we offer stainless steel round bars in multiple grades and sizes. Our advanced, complimentary cutting service ensures precise fulfillment of your requirements every time.
Can you manufacture stainless steel grinding bars and rods?
Absolutely, we specialize in producing stainless steel grinding bars and rods that boast precise dimensions, superior roundness, and straightness. These qualities surpass those of standard polished stainless steel bars, although the processing costs are higher.
Q1: What range of products do you offer?
A: We provide a wide array of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 316L 300 series.
Additionally, we offer 400 series and duplex stainless steels such as 2205, 2304, 2101, 2507, and high-nickel alloys like 904L, 800H, and 600H.
Q2: Can you produce products based on my specific drawings?
Yes, we can manufacture products strictly according to your drawings, ensuring complete satisfaction.
Q3: How does your factory ensure quality control?
Quality is our top priority. We consistently emphasize rigorous quality control from the initial stages through to the final product.
Q4: Can I request alterations in packaging and transportation forms?
Yes, we can modify the packaging and transportation forms as per your request.
However, any additional costs and expenses incurred during this period will be borne by you.
Q5: How does your factory ensure quality control?
Quality is our top priority. We consistently emphasize rigorous quality control from the initial stages through to the final product.
Q6: What is the usual delivery time?
A: Typically, it takes 7 to 20 working days after payment confirmation.
For urgent orders, we expedite the process to ensure early completion.
Q7: What are your payment terms?
A: 100% T/T in advance, 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, bowls, and more. Share your specific usage, and we'll adjust the mechanical properties to meet your requirements.
Q9: How can I obtain a sample?
A: FREE samples are available for your inspection and testing. For small pieces, we may cover the courier cost-this will depend 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, Korea, India, Pakistan, UAE, Ukraine, and more.
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