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 has been a beacon of excellence in supplying superior quality products worldwide for many years. Our commitment ensures that Daxun Alloys stands as the premier supplier of SS 431 Round Bars/Rods. We adhere strictly to both national and international quality standards, delivering premium round bars to our global clientele in a variety of specifications. Type 431, a hardenable martensitic stainless steel alloy, boasts exceptional tensile and torsional strength, making it the ideal material for shaft manufacturing.
Hot Rolled Stainless Steel Rod
Our stainless steel rods and bars are meticulously heated and rolled through multiple stages in a state-of-the-art rolling mill, ensuring they meet comprehensive specifications and performance standards.
Cold Drawn Bright Stainless Steel Rods
Cold-drawn stainless steel rods are engineered under precise cold working conditions, resulting in a smooth surface that can be further polished and ground to perfection.
Forged Stainless Steel Rod and Bar
Our forged stainless steel rods undergo multiple forging processes to significantly enhance their mechanical properties and strength.
General Properties
Our extensive network of service centers ensures a ready supply of stainless steel bar products, available in common sizes and alloys for immediate delivery. We also offer custom-sized stainless steel bars and maintain a stocking program for orders below factory minimums, ensuring rapid 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
The majority of our inventory comprises our uniquely processed bar grade: stainless steel round bars, engineered to consistent standards for improved machinability and cost efficiency. Our advanced bar processing machinery allows Daxun Alloys to meet the exact specifications of our customers.
1. Heat Treatments: Daxun can perform heat treatments on our stainless steel bars, depending on the metal's chemistry. 2. Positive Material Identification (PMI): Additional PMI testing may be conducted in-house or with an independent laboratory. 3. Ultrasonic Testing (UT): This high-frequency sound energy test inspects and measures 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, high-performance melting furnaces, and efficient rolling mills for producing titanium rods. We also utilize a unique hydroforming process for part manufacturing.
Daxun's Heat Treatment Furnace
Our heat treatment process employs advanced furnace equipment to ensure the material's stability and high performance.
Daxun's Smelting Ability
Daxun Stainless Steel utilizes the world's most advanced vacuum induction, vacuum consumable, and electroslag furnaces to minimize impurities during the smelting process, thereby enhancing the performance of the finished stainless steel rods.
Choose Jiangsu Daxun Alloy Co., Ltd. as Your Premier Supplier for Stainless Steel Rods
Our stainless steel products come with full certification and traceability, ensuring the highest standards of quality and reliability. We proudly supply superior stainless steel to leading sectors, including aerospace, industrial, medical, marine, and military industries.
Discover the 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 comprehensive information on our stainless steel rods, please reach out to the team at Jiangsu Daxun Alloy Co., Ltd.
Corrosion Resistance
431 Stainless Steel Bar Material boasts superior corrosion resistance across a multitude of corrosive environments. While it demonstrates some saltwater resistance in cold southern seas, its performance may be limited in warmer tropical waters. When compared to 304 Grade Material, the corrosion resistance of 431 Round Bar Material is comparable or slightly inferior. 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 specified tempering temperature is generally discouraged due to a reduction in mechanical properties.
Heat Treatment
Annealing
Full anneal is impractical for this grade as it hardens even with slow cooling. For Process Anneal, heat to 620-660°C followed by air cooling is recommended.
Hardening
Hardening is achieved by heating the material to 980-1065°C, holding for approximately 30 minutes, then quenching in air or oil. Pre-heating at 760-790°C is beneficial for complex parts or pre-hardened components. Tempering should be done according to mechanical requirements, as detailed in the accompanying table.
Avoid the tempering range of 425-600°C due to diminished impact toughness, although the effect is less significant than in most other martensitic grades.
Welding
Welding this material is challenging due to the risk of cracking. A pre-heat of 200-300°C is recommended before welding. While Grade 410 filler rod can be used, Grades 308L, 309, or 310 offer more ductile welds if matching properties are not essential. Post-weld heat treatment at 650°C is advisable.
Machining
In its annealed state, this grade is relatively easy to machine. However, machining becomes more difficult if the material is hardened beyond 30HRC. Ugima Improved Machinability Grade 431 significantly enhances achievable machining speeds and tool life.
Typical Applications
Nuts and bolts. Propeller shafting. Pump shafts. Beater bars. Marine hardware.
Specified Properties
The specified properties for bar products are outlined in ASTM A276. Similar but 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 have extensive applications, spanning from construction to automotive components. Given their versatility, Daxun Alloys offers these bars in various grades and sizes. Our advanced free cutting service ensures precise conformity to your specifications every time.
Can you provide SS grinding bars & rods?
Absolutely! We specialize in SS grinding bars & rods with impeccable precision in dimension, roundness, and straightness. These are far superior to standard stainless steel polished bars, though the processing costs may be higher.
Q1: What products can you offer?
A: We offer a diverse range of general steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 316L, along with the entire 300 series.
We also provide the 400 series and duplex stainless steels like 2205, 2304, 2101, 2507, etc. Additionally, we specialize in high-nickel alloys such as 904L, 800H, and 600H.
Q2. Can you produce products according to my drawings?
Yes, we can manufacture products tailored to your drawings, ensuring they meet your highest satisfaction.
Q3. How does your factory handle quality control?
Quality is our utmost priority. We implement stringent quality control measures throughout the entire production process, from start to finish.
Q4. Can I request changes in packaging and transportation?
Yes, we can modify the packaging and transportation methods according to your requests.
Please note that additional costs incurred during this period will be borne by you, including any price differences.
Q5. How does your factory handle quality control?
Quality is our utmost priority. We implement stringent quality control measures throughout the entire production process, from start to finish.
Q6. What is the delivery time?
A: Typically, it takes 7 to 20 working days after payment confirmation.
For urgent orders, 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 deposit and 70% balance 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 ideal for making stainless steel pots, sinks, bowls, etc. Tell us your specific requirements, and we'll adjust the mechanical properties to suit your needs.
Q9: How can I get a sample?
A: We offer FREE samples for your inspection and testing. If you need a small piece, we can cover the courier costs, depending on the situation.
Q10: Which countries have you exported to?
A: To date, we have exported stainless steel materials to 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.
