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 |
Renowned Global Leader in Premium Stainless Rod and Round Bar Fabrication Services
Daxun Alloys has proudly supplied the highest quality products worldwide for many years. We stand firm in our belief that Daxun Alloys is the premier supplier for SS 431 Round Bars/Rods. We export top-notch round bars adhering to both national and international quality standards, offering them in a variety of specifications to our global clientele. Type 431 is a hardenable martensitic stainless steel alloy, celebrated for its exceptional tensile and torsional strength, making it an ideal material for manufacturing robust shafts.
Hot Rolled Stainless Steel Rod
Stainless steel rods and bars undergo a heating and rolling process involving multiple passes through a rolling mill. These products boast comprehensive specifications and performance metrics that meet rigorous standards and requirements.
Cold Drawn Bright Stainless Steel Rods
Cold-drawn stainless steel rods are produced under cold working conditions, resulting in a smooth surface. These rods can be further polished and ground to meet precise specifications.
Forged Stainless Steel Rod and Bar
Forged stainless steel rods are subjected to multiple forging processes to significantly enhance their mechanical properties and strength.
General Properties
Our extensive network of service centers stocks a wide variety of stainless steel bar products, ensuring fast and ready supply of common bar sizes and alloys. We also produce custom-sized stainless steel bars. For orders below the factory minimum, we can arrange a stocking program to guarantee prompt and fast turnaround. Daxun Alloys stocks stainless steel round bars ranging from 1/16" to 26" in diameter, available in nearly every grade, 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.
Additional Services
A significant portion of our inventory consists of our uniquely processed bar grade: stainless steel round bars. These bars are meticulously melted to consistent standards, improving machinability and reducing the overall cost of each part. Our state-of-the-art stainless steel bar processing machinery allows Daxun Alloys to produce bars that meet the precise specifications of our customers.
1. Daxun offers heat treatment services for our stainless steel bars, contingent on the metal's chemistry. 2. Positive Material Identification (PMI): In certain cases, additional PMI testing may be required. Daxun Stainless Steel Products can perform this testing in-house or collaborate with an independent laboratory. 3. Ultrasonic Testing (UT): This method uses high-frequency sound energy to inspect and measure stainless steel bar products, aiding in defect detection, evaluation, and dimensional measurement.
For more information on our 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 | - |
431 Stainless Steel Rod Mechanical Properties
| 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 |
431 Stainless Steel Rod Physical Properties
Daxun's Stainless Steel Rod Manufacturing Capabilities
Our forming capabilities include cutting-edge radial forging machines, advanced heat treatment furnaces, sophisticated melting furnaces, and state-of-the-art rolling mills for manufacturing titanium rods. Additionally, our unique hydroforming process excels in manufacturing intricate parts.
Daxun's Advanced Heat Treatment Furnace
Our stainless steel rod heat treatment employs advanced furnace equipment to ensure the material's stability and superior performance.
Daxun's Smelting Capability
Daxun Stainless Steel utilizes the world's most advanced vacuum induction, vacuum consumable, and electroslag furnaces. These technologies minimize impurities during the smelting process, significantly enhancing the performance of our finished stainless steel rods.
Allow Jiangsu Daxun Alloy Co., Ltd. to be your reliable and esteemed partner in stainless steel rod supply.
Our stainless steel products come with complete certifications and traceability. We are committed to delivering the highest quality stainless steel to prestigious sectors including aerospace, industrial, medical, marine, and military industries.
Explore the robust mechanical properties of our diverse grades of stainless steel bars.
| | 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 comprehensive details on our premium stainless steel rods, please reach out to Daxun today.
Corrosion Resistance
The 431 Stainless Steel Bar Material exhibits outstanding corrosion resistance across a variety of corrosive environments. While it offers moderate resistance to saltwater in cold southern waters, its performance in warm tropical waters is limited. Overall, its corrosion resistance is comparable to or slightly less than that of 304 Grade Material. For optimal performance, ensure a smooth surface finish in the hardened and tempered state.
Heat Resistance
The material withstands scaling in intermittent service up to 925°C and in continuous service up to 870°C. However, it is generally not recommended for use at temperatures exceeding the tempering temperature due to a reduction in mechanical properties.
Heat Treatment
Annealing
Full annealing is impractical for this grade as it hardens even with slow cooling. For Process Annealing, heat to 620-660°C and allow it to air cool.
Hardening
To harden, heat the material to 980-1065°C, hold for about 30 minutes, then quench in air or oil. Pre-heating at 760-790°C can be beneficial for complex components or those already hardened. Temper the material to meet mechanical requirements, using the indicated temperatures in the provided table.
Avoid tempering within the 425-600°C range as it leads to reduced impact toughness, though the effect is less pronounced compared to other martensitic grades.
Welding
Welding is challenging due to the risk of cracking. Pre-heat the material to 200-300°C before welding. While Grade 410 filler rod is suitable, Grades 308L, 309, or 310 offer more ductile welds if matching properties are not required. Post-weld heat treatment at 650°C is advisable.
Machining
In its annealed condition, this grade is relatively easy to machine. However, once hardened above 30 HRC, machining becomes more difficult. The Ugima Improved Machinability version of Grade 431 offers a significant enhancement in machining speeds and tool longevity.
Typical Applications
Common applications include nuts and bolts, propeller shafting, pump shafts, beater bars, and marine hardware.
Specified Properties
The specified properties are for bar products as per ASTM A276. Similar properties may apply to other products like plates and forgings as outlined in their respective specifications.
SS 431 grade stainless steel round bars
Stainless steel round bars are immensely versatile, finding applications in fields ranging from construction to automotive manufacturing. Jiangsu Daxun Alloy Co., Ltd. offers these round bars in various grades and sizes. With our state-of-the-art cutting service, we ensure precise customization to meet your specific needs every time.
Can you produce SS grinding bars & rods?
Yes, we specialize in SS grinding bars & rods with precise dimensions, exceptional roundness, and straightness. These surpass the qualities of standard polished bars, though they come at a higher processing cost.
Q1: What products can you offer?
A: We offer a range of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 316L 300 series.
Additionally, we provide 400 series stainless steels and duplex stainless steel such as 2205, 2304, 2101, 2507, as well as high-nickel alloys like 904L, 800H, and 600H.
Q2. Can you produce products according to my drawings?
Absolutely, we can manufacture products based on your drawings to ensure they meet your exact specifications and satisfaction.
Q3. How does your factory manage quality control?
Quality is our top priority. We emphasize stringent quality control from the initial stages to the final product.
Q4. Can I request changes in packaging and transportation?
Yes, we can accommodate packaging and transportation changes per your request.
However, 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 top priority. We emphasize stringent quality control from the initial stages to the final product.
Q6. How long is the delivery time?
A: Delivery is typically 7 to 20 working days after payment confirmation.
For urgent orders, we can expedite processing to meet earlier deadlines.
Q7. What are your payment options?
A: 100% T/T in advance, Western Union (for small orders)
B: 30% T/T upfront and 70% balance before shipment
C: 100% Irrevocable LC at sight (for large orders)
Q8: Can you provide DDQ (Deep Drawing Quality) materials?
A: Yes, we supply DDQ materials suitable for stainless steel pots, sinks, bowls, etc. Provide your usage requirements and we'll adjust mechanical properties accordingly.
Q9: How can I get a sample?
A: FREE samples are available for your inspection and testing. For small pieces, we may cover courier costs depending on the circumstances.
Q10: Which countries have you exported to?
A: We have exported stainless steel materials to Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, among others.
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.
