Basic Info.
Model NO.
431 stainless steel rod
Type
Stainless Steel Bars
Standard
ASTM, AISI, GB, JIS, DIN, EN
Certification
ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
Manufacturing
Hot Rolling, Cold Rolling, Forging
Trademark
TISCO POSCO Baosteel
Transport Package
Wooden Box or Wooden Pallet
Specification
φ 3.0mm-350mm
Product Description
| 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 |
Pioneering Excellence in Stainless Rod and Round Bar Fabrication Services
Daxun Alloys has been a beacon of quality, supplying top-notch products worldwide for many years. Renowned as the premier supplier of SS 431 Round Bars/Rods, Daxun Alloys ensures that every product adheres to both national and international quality standards. We offer an extensive range of round bars and rods tailored to various specifications. Type 431 is a hardenable martensitic stainless steel alloy, celebrated for its high tensile and torsional strength, making it ideal for shaft manufacturing.
Premium Hot Rolled Stainless Steel Rod
Our stainless steel rods and bars are meticulously heated and rolled through multiple passes in a rolling mill, ensuring comprehensive specifications and performance that meets stringent standards.
Cold Drawn Bright Stainless Steel Rods
Cold-drawn stainless steel rods undergo a precise drawing process under cold working conditions, resulting in a smooth surface that can be polished and ground to perfection.
High-Strength Forged Stainless Steel Rods and Bars
Our forged stainless steel rods undergo multiple forging processes to enhance their mechanical properties and increase their strength, meeting the highest industry standards.
Comprehensive General Properties
Our vast network of service centers ensures a ready supply of common bar sizes and alloys. We also offer custom-sized stainless steel bars and can arrange a stocking program for quick turnaround if quantities fall below factory minimums. Daxun Alloys stocks round bars from 1/16" to 26" in diameter, available in nearly every grade of stainless steel, including 302, 303, 304/L, 309/S, 310/S, 316/L, 317/L, 321, 321/H, 347, 347H, 410, 416, 420, 440C, 17-4PH, Duplex 2205, and Alloy 20.
Exclusive Additional Services
Our unique processed bar grade, featuring stainless steel round bars melted to consistent standards, enhances machinability and reduces overall part costs. Our advanced bar processing machinery allows Daxun Alloys to meet the precise specifications of our customers.
1. Heat Treatments: Daxun can perform heat treatments based on the metal's chemistry. 2. Positive Material Identification (PMI): Additional PMI testing can be conducted in-house or at an independent lab. 3. Ultrasonic Testing (UT): This high-frequency sound energy inspection ensures defect detection, dimensional measurement, and comprehensive evaluation of our stainless steel bar products.
For further insights on our stainless steel rods, please contact Daxun.
Chemical Composition of 431 Stainless Steel Rod
| 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 | - |
Mechanical Properties of 431 Stainless Steel Rod
| 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 |
Physical Properties of 431 Stainless Steel Rod
Daxun's Advanced Manufacturing Capabilities for Stainless Steel Rods
Our forming capabilities feature cutting-edge radial forging machines, heat treatment and melting furnaces, and rolling mills for titanium rods, complemented by an innovative hydroforming process for part manufacturing.
State-of-the-Art Heat Treatment Furnace
Our advanced heat treatment furnace ensures the stainless steel rod's material stability and high performance.
Superior Smelting Capabilities at Daxun
Utilizing the world's most advanced vacuum induction furnace, vacuum consumable furnace, and electroslag furnace, Daxun Stainless Steel minimizes impurities during the smelting process, enhancing the performance of our stainless steel rods.
Allow us the pleasure of being your most reliable and esteemed stainless steel rod supplier.
Our stainless steel offerings are comprehensively certified and fully traceable. We are dedicated to providing the utmost quality stainless steel to prestigious industries such as aerospace, industrial manufacturing, medical sectors, marine engineering, and military applications.
Comprehensive Mechanical Properties of Various Stainless Steel Bar Grades
| | 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 |
For detailed information regarding our premium stainless steel rods, please reach out to Daxun at Jiangsu Daxun Alloy Co., Ltd.
Corrosion Resistance
431 Stainless Steel Bar Material boasts exceptional corrosion resistance across a broad range of corrosive environments. While it may withstand saltwater exposure in cooler southern waters, it is less effective in warmer tropical waters. Comparatively, the corrosion resistance of 431 Round Bar Material is similar to, or slightly less than, that of 304 Grade Material. Optimal performance is achieved with a polished surface in its hardened and tempered state.
Heat Resistance
This material resists scaling when subjected to intermittent service up to 925°C and continuous service up to 870°C. However, it is generally not advisable to use it at temperatures exceeding the relevant tempering temperature, as this can lead to a decrease in mechanical properties.
Heat Treatment
Annealing
Full annealing is impractical for this grade, as it hardens even with slow cooling. Process annealing involves heating to 620-660°C followed by air cooling.
Hardening
This material is hardened by heating to a range of 980-1065°C, holding for approximately half an hour, then quenching in air or oil. Pre-heating at 760-790°C can be beneficial for complex parts or those already hardened. Tempering should align with mechanical requirements, utilizing the temperature ranges indicated in the accompanying table.
Avoid the tempering range of 425-600°C due to decreased impact toughness, though the effect is less pronounced compared to other martensitic grades.
Welding
Welding this material presents challenges due to the risk of cracking. Pre-heating to 200-300°C before welding is advisable. While a 410-grade 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 recommended.
Machining
In its annealed state, this grade is relatively easy to machine. However, once hardened above 30HRC, machining difficulty increases. A Ugima Improved Machinability version of Grade 431 significantly enhances achievable machining speeds and extends tool life.
Typical Applications
Ideal for a variety of applications including nuts and bolts, propeller shafts, pump shafts, beater bars, and marine hardware.
Specified Properties
The properties of this material are specified for bar products in ASTM A276. Similar, though not necessarily identical, properties are specified for other products such as plates and forgings in their respective specifications.
SS 431 grade stainless steel round bars
Stainless steel round bars are extensively utilized across diverse sectors, from construction to automotive parts. To meet the varied demands, Daxun Alloys provides stainless steel round bars in a wide array of grades and sizes. Our precision cutting service ensures that your specific requirements are met with unparalleled accuracy.
Can you produce SS grinding bars and rods?
Yes, we specialize in manufacturing SS grinding bars and rods with precise dimensions, exceptional roundness, and straightness, surpassing the quality of standard stainless steel polished bars. Please note, however, that the processing cost is higher.
Q1: What products can you offer?
A: We offer a wide range of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 316L 300 series.
Additionally, we provide the 400 series, duplex stainless steels such as 2205, 2304, 2101, 2507, and high-nickel alloys like 904L, 800H, and 600H.
Q2: Can you produce products according to my drawings?
Yes, we can manufacture products tailored to your drawings, ensuring complete satisfaction.
Q3: How does your factory handle quality control?
Quality is our top priority. We maintain stringent quality control measures from start to finish.
Q4: Can I request a change in packaging and transportation?
Yes, we can adjust the packaging and transportation methods per your request,
but you will need to cover any additional costs and differences incurred during the process.
Q5: How does your factory handle quality control?
Quality is our top priority. We maintain stringent quality control measures from start to finish.
Q6: What is the delivery time?
A: Delivery takes 7 to 20 working days after payment confirmation.
If the order is urgent, we will expedite the process to meet your deadlines.
Q7: What are your payment terms?
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 DDQ (Deep Drawing Quality) materials?
A: Yes, we can. Our materials are suitable for products like stainless steel pots, sinks, and bowls. Provide your specific usage, and we will adjust the mechanical properties to meet your requirements.
Q9: How can I get a sample?
A: FREE samples are available for your inspection and testing. If you need a small piece, we may cover the courier cost, depending on the situation.
Q10: Which countries have you exported to?
A: We have exported our stainless steel materials to countries including Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and more.
Address:
B108, No. 32-1, Chengnan Road, Xinwu District, Wuxi, Jiangsu, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000, OHSAS/ OHSMS 18001, IATF16949, HSE, ISO 14064, QC 080000, GMP, BSCI, BRC, SA 8000, QHSE, HACCP, ISO 13485, EICC, ANSI/ESD, SEDEX, ISO 22000, AIB, WRAP, GAP, ASME, ISO 29001, HQE, IFS
Company Introduction:
Founded in 2003, Daxun Alloy is a leading global metal material manufacturer. Headquartered in Wuxi, China, the company has multiple production bases and sales offices around the world. Daxun Alloy focuses on the development, production and sales of various stainless steels, titanium alloys, high-temperature alloys, etc. For general industry, construction, aerospace, energy, chemical industry, medical and other fields.
China, Daxun Metal Group is a global vertically integrated metal material manufacturer and stockist. Daxun can provide finished products and customized full-process services and professional technical services. Currently, the group has 600 employees and covers a total area of 130, 000 square meters. Daxun has a standing inventory of 50, 000 tons of stainless steel, 5, 000 tons of nickel-based alloys, and 2, 000 tons of pure titanium and titanium alloys. The main product forms are metal plates, metal coils, metal pipes, and metal bars. The metal materials produced by Daxun are market leaders for marine, energy, military, general industrial and aerospace applications. In addition, the company also produces seamless pipes, plates, forgings and other metal materials for power generation and oil and gas applications; Commercial and military alloy products; And metal alloys and other metal products for the forging industry.
