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 |
A Global Leader in Stainless Rod and Round Bar Fabrication Services
Daxun Alloys has been a pioneer in supplying top-tier quality products globally for many years. We take immense pride in ensuring that Daxun Alloys stands as the premier supplier of SS 431 Round Bars/Rods. We export superior round bars adhering to both national and international quality standards, catering to clients worldwide. Our round bars and rods come in a myriad of specifications. Type 431 is a hardenable martensitic stainless steel alloy known for its exceptional tensile and torsional strength, making it the material of choice for manufacturing robust shafts.
Hot Rolled Stainless Steel Rod
Our stainless steel rods and bars undergo a meticulous heating process and are rolled through multiple passes in a rolling mill. With comprehensive specifications, the performance of our products meets and exceeds industry standards and requirements.
Cold Drawn Bright Stainless Steel Rods
Cold-drawn stainless steel rods, crafted under stringent cold working conditions, boast 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, significantly enhancing their mechanical properties and strength, ensuring they meet the highest standards.
Exquisite General Properties
Our extensive network of service centers guarantees a rapid, ready supply of stainless steel bar products in common sizes and alloys. We also specialize in custom-sized stainless steel bars. For orders below factory minimums, we offer a stocking program for prompt, efficient 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 Exceptional Services
A significant portion of our inventory includes our uniquely processed bar grade stainless steel round bars, engineered to consistent standards to enhance machinability and reduce overall part costs. Our state-of-the-art stainless steel bar processing machinery allows Daxun Alloys to meet the precise specifications of our valued customers.
1. Daxun offers comprehensive heat treatments for our stainless steel bars, contingent on the metal's chemistry. 2. Positive Material Identification (PMI) Additional PMI testing may be required, which Daxun Stainless Steel Products can perform in-house or in collaboration with independent laboratories. 3. Ultrasonic Testing (UT) Utilizing high-frequency sound energy, UT inspects and measures stainless steel bar products for defect detection/evaluation and dimensional measurement, among other key assessments.
For further details about our stainless steel rods, please connect with Daxun
Intricate 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 | - |
Robust 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 |
Comprehensive 431 Stainless Steel Rod Physical Properties
Unmatched Daxun Stainless Steel Rod Manufacturing Capabilities
Our forming capabilities are unparalleled, featuring advanced radial forging machines, state-of-the-art heat treatment furnaces, melting furnaces, and rolling mills for manufacturing titanium rods, complemented by a unique hydroforming process for crafting precise parts.
Daxun's Cutting-edge Heat Treatment Furnace
Stainless steel rod heat treatment at Daxun utilizes advanced furnace equipment, ensuring material stability and exceptional performance.
Daxun's Superior Smelting Ability
Daxun Stainless Steel employs the world's most advanced vacuum induction furnace, vacuum consumable furnace, and electroslag furnace to minimize impurities during the smelting process, thereby enhancing the performance of the final stainless steel rods.
Allow us the privilege of being your reliable and trustworthy stainless steel rod supplier.
Our stainless steel products are not just certified; they are fully traceable and meet the highest standards. We proudly supply top-tier stainless steel to leading industries such as aerospace, industrial, medical, marine, and military.
Explore the mechanical properties of various grades of our premium 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 |
Should you seek more information on our high-quality stainless steel rods, please reach out to Daxun.
Corrosion Resistance
431 Stainless Steel Bar Material exhibits exceptional resistance to a diverse array of corrosive environments. It can withstand salt water in colder, southern seas but may face challenges in the warmer tropical waters. Compared to the 304 Grade Material, 431 Round Bar Material offers similar, if not slightly lower, corrosion resistance. Optimal performance is achieved when the material features a smooth surface in a hardened and tempered state.
Heat Resistance
This alloy resists scaling at temperatures up to 925°C in intermittent service and 870°C in continuous service. However, it's generally not recommended for applications exceeding the relevant tempering temperature due to potential reductions in mechanical properties.
Heat Treatment
Annealing
Full anneal is impractical for this grade due to its tendency to harden even with slow cooling. For process annealing, heat to 620-660°C followed by air cooling.
Hardening
Hardening is achieved by heating the material to 980-1065°C, maintaining this temperature for approximately 30 minutes, followed by quenching in air or oil. Pre-heating at 760-790°C may be beneficial for complex parts or those already hardened. Tempering should be conducted to meet specific mechanical requirements, with temperatures outlined in the accompanying table.
Avoid tempering within the 425-600°C range due to a decrease in impact toughness, although this effect is less pronounced than in most other martensitic grades.
Welding
Welding this grade can be challenging due to the risk of cracking. Pre-heating to 200-300°C before welding is advisable. While Grade 410 filler rod is suitable, using Grades 308L, 309, or 310 can result in more ductile welds, provided matching properties are not mandatory. Post-weld heat treatment at 650°C is recommended.
Machining
In its annealed state, this grade is relatively easy to machine. However, machining becomes more challenging if the material is hardened beyond 30HRC. The Ugima Improved Machinability version of Grade 431 significantly enhances achievable machining speeds and extends tool life.
Typical Applications
This alloy is ideal for manufacturing nuts and bolts, propeller shafting, pump shafts, beater bars, and marine hardware.
Specified Properties
The specified properties of this material are for bar products under ASTM A276. Other product forms such as plates and forgings have similar, though not necessarily identical, properties as specified in their respective standards.
SS 431 grade stainless steel round bars
Stainless steel round bars are extensively utilized across various sectors, from construction to automotive components. Recognizing their broad applications, Daxun Alloys provides stainless steel round bars in diverse grades and sizes. With our precision advanced cutting service, we ensure your exact specifications are met consistently.
Can you produce stainless steel grinding bars and rods?
Yes, we specialize in producing stainless steel grinding bars and rods with precise dimensions, superior roundness, and exceptional straightness. These qualities surpass those of standard polished bars. Please note, however, that the processing costs are 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, 316L, and 300 series.
Additionally, we supply 400 series, duplex stainless steels such as 2205, 2304, 2101, 2507, and high-nickel alloys like 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Yes, we can manufacture products according to your drawings to ensure they meet your exact specifications and satisfaction.
Q3. How does your factory handle quality control?
Quality is our top priority. We consistently place significant emphasis on quality control from the initial stages through to the final production.
Q4. Can I request changes to the form of packaging and transportation?
Yes, we can adjust the packaging and transportation methods according to your requests.
However, you will need to bear any additional costs and price differences incurred during this process.
Q5. How does your factory handle quality control?
Quality is our top priority. We consistently place significant emphasis on quality control from the initial stages through to the final production.
Q6. What is the delivery time?
A: The delivery time is typically 7 to 20 working days after payment confirmation.
For urgent orders, we can expedite production to meet your timelines.
Q7. What are your payment terms?
A: 100% T/T in advance, or Western Union for small orders.
B: 30% T/T in advance and 70% balance before shipment.
C: 100% Irrevocable LC at sight for large orders.
Q8: Can you produce Deep Drawing Quality (DDQ) materials?
A: Yes, we can. Our material is ideal for producing stainless steel pots, sinks, bowls, etc. Provide us with your usage details, and we will tailor the mechanical properties to meet your requirements.
Q9: How can I get a sample?
A: We offer FREE samples for your evaluation and testing. For small pieces, we may cover the courier cost, depending on the situation.
Q10: To which countries have you exported your products?
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.
