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 the epitome of excellence in supplying premium-quality products worldwide for many years. Renowned for being the best supplier of SS 431 Round Bars/Rods, we export top-tier round bars that adhere to both national and international quality standards. Our extensive range of specifications ensures we meet the diverse needs of our global clientele. Type 431 is a hardenable martensitic stainless steel alloy celebrated for its high tensile and torsional strength, making it the material of choice for manufacturing robust shafts.
Hot Rolled Stainless Steel Rod
Our stainless steel rod and bar are meticulously heated and rolled through multiple passes in a rolling mill. With comprehensive specifications, their performance consistently meets and exceeds industry standards.
Cold Drawn Bright Stainless Steel Rods
Cold-drawn stainless steel rods are meticulously crafted under cold working conditions. They feature a smooth surface and can be polished and ground to perfection.
Forged Stainless Steel Rod and Bar
Forged stainless steel rods undergo multiple forging processes to enhance their mechanical properties and provide superior strength.
General Properties
Our extensive network of service centers maintains a robust stock of stainless steel bar products, ensuring a swift supply of common bar sizes and alloys. We also specialize in producing custom-sized stainless steel bars. For orders below the factory minimum, we offer a stocking program for prompt and efficient turnaround. Daxun Alloys stocks stainless steel round bars in diameters ranging from 1/16" to 26", available in nearly every grade, including but not limited to 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 substantial portion of our inventory comprises our uniquely processed bar grade of stainless steel round bars, meticulously melted to consistent standards to enhance machinability and reduce the total cost per part. Our state-of-the-art bar processing machinery allows Daxun Alloys to meet precise customer specifications.
1. Heat Treatments: Daxun can perform specialized heat treatments on our stainless steel bars, contingent on the metal's chemistry. 2. Positive Material Identification (PMI): Additional PMI testing can be conducted either in-house or via an independent laboratory. 3. Ultrasonic Testing (UT): Employing high-frequency sound energy, UT inspects and measures stainless steel bar products to detect defects, evaluate dimensions, and more.
For more information on our exceptional 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, heat treatment furnaces, melting furnaces, and rolling mills optimized for manufacturing titanium rods. Additionally, we employ a unique hydroforming process for crafting high-quality parts.
Daxun's Heat Treatment Furnace
Our advanced heat treatment furnace equipment ensures the stability and high performance of our stainless steel rod materials.
Daxun's Smelting Ability
Using the world's most advanced vacuum induction furnace, vacuum consumable furnace, and electroslag furnace, Daxun Stainless Steel minimizes impurities during the smelting process, thereby enhancing the performance of our finished stainless steel rods.
Choose us as your reliable and dedicated Stainless Steel Rod supplier.
Our stainless steel products are fully certified and traceable, ensuring the highest quality standards. We proudly supply premium stainless steel to leading industries such as aerospace, industrial, medical, marine, and military sectors.
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 detailed information on our premium stainless steel rods, please contact Jiangsu Daxun Alloy Co., Ltd.
Corrosion Resistance
431 Stainless Steel Bar Material boasts exceptional corrosion resistance across a diverse array of corrosive environments. While it demonstrates some resilience to saltwater exposure in cooler southern seas, its effectiveness diminishes in the warm, tropical waters. Compared to 304 Grade Material, the corrosion resistance of 431 Round Bar Material is approximately on par or slightly inferior. Optimal performance is achieved with a smooth surface, especially in its hardened and tempered state.
Heat Resistance
Our 431 Stainless Steel Rod resists scaling in intermittent service up to 925°C and in continuous service up to 870°C. However, it is generally not recommended for applications at temperatures above its tempering threshold due to a decline in mechanical properties.
Heat Treatment
Annealing
Full anneal is impractical for this grade, as it hardens even when cooled slowly. For process annealing, heat to 620-660°C and air cool to achieve desired properties.
Hardening
Hardening is achieved by heating between 980-1065°C, holding for approximately 30 minutes, then quenching in air or oil. Pre-heating at 760-790°C is beneficial for intricate parts or those already hardened. Tempering should be performed according to mechanical requirements, at temperatures specified in the accompanying table.
Avoid tempering within the 425-600°C range due to a reduction in impact toughness, albeit to a lesser extent than in most other martensitic grades.
Welding
Welding presents challenges due to the risk of cracking. Pre-heating to 200-300°C is advisable before welding. While Grade 410 filler rod can be used, Grades 308L, 309, or 310 yield more ductile welds, provided matching properties are not a requirement. Post-weld heat treatment at 650°C is recommended.
Machining
In its annealed state, this grade is relatively easy to machine. Once hardened above 30HRC, machining becomes more difficult. However, the Ugima Improved Machinability version of Grade 431 offers a significant boost in machining speeds and tool longevity.
Typical Applications
Perfect for a range of uses including nuts and bolts, propeller shafting, pump shafts, beater bars, and marine hardware.
Specified Properties
These properties are specified for bar products in ASTM A276. Similar but not necessarily identical properties are specified for other forms like plate and forgings in their respective specifications.
SS 431 grade stainless steel round bars
Stainless steel round bars from Daxun Alloys are highly sought after, spanning applications from construction to automotive components. Due to their versatility, we offer these bars in various grades and sizes. With our advanced, complimentary cutting service, we guarantee precise fulfillment of your specifications every time.
Do you provide stainless steel grinding bars and rods?
Yes, we specialize in producing stainless steel grinding bars and rods that boast superior precision in dimension, roundness, and straightness compared to polished bars. However, this high-quality processing incurs a higher cost.
Q1: What products can you offer?
A: We offer a diverse range of stainless steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, and 316.
Our portfolio also includes the 400 series, duplex stainless steels 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 personalized drawings to ensure utmost satisfaction.
Q3. How does your factory manage quality control?
Quality is our top priority. We implement rigorous quality control measures throughout every stage of production.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can adjust the packaging and transportation methods according to your preferences.
However, please note that you will need to cover any additional costs and price differences incurred during this period.
Q5. How does your factory manage quality control?
Quality is our top priority. We implement rigorous quality control measures throughout every stage of production.
Q6. How long is the delivery time?
A: Delivery time ranges from 7 to 20 working days after payment confirmation.
For urgent orders, we can expedite the production timeline to meet your needs.
Q7. What are your payment terms?
A: 100% T/T 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 provide DDQ (Deep Drawing Quality) materials?
A: Yes, we can. Our materials are perfect for manufacturing stainless steel pots, sinks, and bowls. Share your specific requirements, and we will tailor the mechanical properties to suit your needs.
Q9: How can I obtain a sample?
A: We offer FREE samples for your evaluation and testing. For small pieces, we may cover the courier cost, subject to conditions.
Q10: To which countries have you exported your products?
A: We have proudly exported our 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.
