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 |
Global Leader in Stainless Rod and Round Bar Fabrication Services
Daxun Alloys, a renowned name in the industry, has been supplying top-quality 431 Stainless Steel Round Bars and Rods worldwide for many years. Recognized as the best supplier of SS 431 Round Bars, we export premium quality round bars adhering to both national and international standards. Our offerings come in various specifications to meet diverse needs. Type 431 is a hardenable martensitic stainless steel alloy known for its exceptional tensile and torsional strength, making it perfect for manufacturing robust shafts.
Hot Rolled Stainless Steel Rod
Our stainless steel rods and bars undergo heating and rolling through multiple passes in a rolling mill, ensuring complete specifications and performance that meet industry standards and requirements.
Cold Drawn Bright Stainless Steel Rods
Cold-drawn stainless steel rods are meticulously drawn under cold working conditions, resulting in a smooth surface that can be further polished and ground for enhanced finish.
Forged Stainless Steel Rod and Bar
Forged stainless steel rods are subjected to multiple forging processes to significantly enhance their mechanical properties and overall strength.
General Properties
Our extensive network of service centers stocks a wide array of stainless steel bar products, ensuring fast and ready supply of common bar sizes and alloys. We also offer custom-sized stainless steel bars and can arrange a stocking program for smaller quantities. At Daxun Alloys, we stock stainless steel round bars ranging from 1/16" to 26" in diameter, available in almost 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
Our inventory primarily comprises our proprietary processed bar grade: stainless steel round bars, engineered for superior machinability and cost efficiency. Our advanced processing machinery at Daxun Alloys ensures that we meet precise customer specifications.
1. Daxun offers specialized heat treatments for our stainless steel bars, tailored to the specific chemistry of the metal. 2. Positive Material Identification (PMI): We can conduct in-house PMI testing or collaborate with independent laboratories for accuracy. 3. Ultrasonic Testing (UT): Utilizes high-frequency sound energy to inspect and measure, 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 state-of-the-art radial forging machines, heat treatment furnaces, melting furnaces, and rolling mills for titanium rods, along with a unique hydroforming process for part manufacturing.
Daxun's Heat Treatment Furnace
Our advanced heat treatment furnace ensures the stability and high performance of our stainless steel rods through precise heat treatment processes.
Daxun's Smelting Ability
Utilizing the world's leading vacuum induction furnace, vacuum consumable furnace, and electroslag furnace, Daxun Stainless Steel minimizes impurities during smelting to enhance the performance of our finished stainless steel rods.
Let us be your trustworthy Stainless Steel Rod supplier
Our stainless steel products are fully certified and traceable. We proudly supply the highest quality stainless steel to leading industries such as aerospace, industrial, medical, marine, and military.
Mechanical properties of various 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 more information on stainless steel rods, please contact Daxun
Corrosion Resistance
431 Stainless Steel Bar Material boasts outstanding corrosion resistance against a diverse range of corrosive environments. In salt water, particularly in the cooler southern waters, it demonstrates some resistance, although it's less effective in the warmer tropical waters. Comparatively, the corrosion resistance of 431 Round Bar Material is on par with, or slightly less than, that of 304 Grade Material. Optimal performance is achieved with a smooth surface in a hardened and tempered state.
Heat Resistance
This material resists scaling during 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 potential reductions in mechanical properties.
Heat Treatment
Annealing
For a full anneal, this grade is impractical due to its tendency to harden even when cooled slowly. A process anneal involves heating to 620-660°C followed by air cooling.
Hardening
Hardening is achieved by heating to 980-1065°C, holding for about 30 minutes, then quenching in air or oil. For complex parts or those already hardened, pre-heating at 760-790°C can be beneficial. Tempering should be adjusted to meet mechanical requirements, referencing the accompanying temperature table.
Avoid tempering within the range of 425-600°C to prevent reduced impact toughness. While this effect is less pronounced than in most other martensitic grades, caution is still advised.
Welding
Welding this material can be challenging due to the risk of cracking. Pre-heating to 200-300°C is recommended before welding. While Grade 410 filler rod is an option, Grades 308L, 309, or 310 are preferable for more ductile welds, provided matching properties are not essential. Post-weld heat treatment at 650°C is advised.
Machining
In its annealed state, this grade is relatively easy to machine. However, when hardened beyond 30HRC, machining becomes more challenging. The Ugima Improved Machinability version of Grade 431 significantly enhances achievable machining speeds and tool life.
Typical Applications
Common applications include nuts and bolts, propeller shafting, pump shafts, beater bars, and marine hardware.
Specified Properties
The specified properties pertain to bar products under ASTM A276. While similar, properties for other products like plates and forgings have their own respective specifications.
SS 431 Grade Stainless Steel Round Bars
Stainless steel round bars are indispensable across numerous sectors, from construction to automotive parts. Daxun Alloys provides a broad selection of stainless steel round bars in various grades and sizes. Our advanced, free cutting service ensures precise fulfillment of your specifications every time.
Can you do SS grinding bar & rod?
Yes, we can manufacture SS grinding bar & rod with precise dimensions, exceptional roundness, and perfect straightness. Our SS grinding bars exceed the quality of standard stainless steel polished bars, though they come with a higher processing cost.
Q1: What products can you offer?
A: We offer a diverse range of general steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, and 316. Our 300 series products are also widely available.
Additionally, we provide 400 series stainless steel, duplex stainless steel like 2205, 2304, 2101, 2507, and high-nickel alloys such as 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Yes, we can manufacture products based on your drawings to meet your specific requirements.
Q3. How does your factory manage quality control?
Quality is our top priority. We implement rigorous quality control measures throughout the entire production process, from start to finish.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can adjust the packaging and transportation methods as per your request.
However, you will need to bear any additional costs incurred during this period.
Q5. How does your factory manage quality control?
Quality is our top priority. We implement rigorous quality control measures throughout the entire production process, from start to finish.
Q6. How long is the delivery time?
A: Typically, our delivery time ranges from 7 to 20 working days after the payment is confirmed.
If the order is urgent, we will expedite the manufacturing process to meet your deadline.
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 make DDQ (Deep Drawing Quality)?
A: Yes, we specialize in producing DDQ materials suitable for stainless steel pots, sinks, bowls, and more. Let us know your specific application, and we will tailor the mechanical properties to meet your requirements.
Q9: How can I get a sample?
A: FREE samples are available for your inspection and testing. For small pieces, we can cover courier costs, depending on the situation.
Q10: Which countries have you exported to?
A: We have successfully exported stainless steel materials to numerous countries, including Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and many 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.
