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 established a sterling reputation for providing top-quality products worldwide for many years. We proudly confirm that Daxun Alloys is your premier supplier of SS 431 Round Bars/Rods. Our export-quality round bars adhere to both national and international standards, fulfilling diverse specifications for clients globally. Type 431, a hardenable martensitic stainless steel alloy, is lauded for its high tensile and torsional strength, making it an exceptional choice for manufacturing durable and high-performance shafts.
Hot Rolled Stainless Steel Rod
Our stainless steel rods and bars undergo meticulous heating and multiple passes in a rolling mill, ensuring comprehensive specifications and performance that meet stringent standards and requirements.
Cold Drawn Bright Stainless Steel Rods
Cold-drawn stainless steel rods are crafted under precise cold working conditions. These rods boast a smooth surface and can be polished and ground to perfection, ensuring premium quality.
Forged Stainless Steel Rod and Bar
Forged stainless steel rods are meticulously forged multiple times, enhancing their mechanical properties and significantly increasing the strength of the rods.
General Properties
Our extensive network of service centers stocks a wide range of stainless steel bar products, ready for immediate supply of common bar sizes and alloys. We also excel in producing custom-sized stainless steel bars. For orders below factory minimums, we offer a stocking program for fast and prompt turnaround. Daxun Alloys boasts an inventory of stainless steel round bars ranging from 1/16" to 26" in diameter. Our round bars come in nearly every grade of stainless steel, 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 unique inventory predominantly includes our specialized processed bar grade: stainless steel round bars, consistently melted to enhance machinability and reduce the total cost per part. With our advanced stainless steel bar processing machinery, Daxun Alloys can manufacture products with precise specifications to meet our customers' exact requirements.
1. Daxun can perform tailored heat treatments on our stainless steel bars, depending on the metal's specific chemistry. 2. Positive Material Identification (PMI) - When required, we can conduct thorough Positive Material Identification testing in-house or collaborate with independent laboratories to ensure material authenticity. 3. Ultrasonic Testing (UT) - Employing high-frequency sound energy, this method inspects and measures our stainless steel bar products, assisting in defect detection/evaluation, dimensional measurement, and more.
For more detailed information on 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 state-of-the-art forming capabilities include radial forging machines, heat treatment furnaces, melting furnaces, and rolling mills for manufacturing titanium rods. We also utilize a unique hydroforming process for producing high-quality parts.
Daxun's Heat Treatment Furnace
Our advanced heat treatment furnace equipment ensures the stability and superior performance of our stainless steel rods.
Daxun's Smelting Ability
Daxun Stainless Steel employs the world's foremost vacuum induction furnace, vacuum consumable furnace, and electroslag furnace technologies to minimize impurities during the smelting process, significantly enhancing the performance of the finished stainless steel rods.
Allow us to become your most reliable Stainless Steel Rod supplier of choice.
Our top-tier stainless steel products come fully certified and traceable, ensuring unmatched quality. We proudly supply the finest stainless steel to premier industries, including aerospace, industrial sectors, medical fields, maritime applications, and military operations.
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 details on our stainless steel rods, please reach out to Daxun for professional assistance.
Corrosion Resistance
The 431 Stainless Steel Bar Material boasts exceptional corrosion resistance across a diverse array of corrosive environments. While it holds some resistance to saltwater in colder southern waters, it may not perform optimally in the warmer tropical waters. Overall, its corrosion resistance is comparable to or slightly less than that of the 304 Grade Material. The material exhibits optimal performance when it features a smooth surface in its hardened and tempered state.
Heat Resistance
This material can resist 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 above the relevant tempering temperature due to a reduction in mechanical properties.
Heat Treatment
Annealing
Full annealing is not practical for this grade as it hardens even with slow cooling. Process Anneal involves heating to 620-660°C followed by air cooling.
Hardening
This grade can be hardened by heating to 980-1065°C, holding for approximately 30 minutes, then quenching in air or oil. Pre-heating at 760-790°C may benefit complex parts or those already hardened. Temper according to mechanical requirements, adhering to the temperatures indicated in the accompanying table.
Avoid the tempering range of 425-600°C due to reduced impact toughness, although this effect is less pronounced than in other martensitic grades.
Welding
Welding this grade can be challenging due to the risk of cracking. Pre-heating to 200-300°C is recommended. While Grade 410 filler rod can be used, Grades 308L, 309, or 310 will yield more ductile welds if matching properties are not required. Post-weld heat treatment at 650°C is advised.
Machining
In its annealed state, this grade is relatively easy to machine. However, if hardened above 30HRC, machining becomes more difficult. The Ugima Improved Machinability version of Grade 431 significantly enhances machining speeds and tool life.
Typical Applications
This material is ideal for components such as 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, though not necessarily identical, properties are specified for other products like plates and forgings in their respective specifications.
SS 431 grade stainless steel round bars
Stainless steel round bars are extensively utilized in various sectors, ranging from construction to automotive parts. Given the broad range of applications, Jiangsu Daxun Alloy Co., Ltd. offers stainless steel round bars in multiple grades and sizes. With our advanced cutting service, tailored to your precise requirements, we guarantee consistent accuracy in every order.
Can you manufacture SS grinding bars & rods?
Yes, we specialize in producing SS grinding bars & rods that boast precise dimensions, impeccable roundness, and unparalleled straightness. These attributes surpass those of polished stainless steel bars, although this precision comes at a higher processing cost.
Q1: What products do you offer?
A: We provide a broad range of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L, and 300 series.
We also offer 400 series and duplex stainless steels such as 2205, 2304, 2101, and 2507, along with high-nickel alloys like 904L, 800H, and 600H.
Q2. Can you manufacture products according to my custom drawings?
Yes, we can produce products based on your custom drawings to meet your exact specifications and satisfaction.
Q3. How do you ensure quality control at your factory?
Quality is our top priority. We consistently emphasize rigorous quality control throughout every stage of the production process, from start to finish.
Q4. Can I request changes to the packaging and transportation methods?
Yes, we can adjust the packaging and transportation methods to suit your preferences.
However, you will need to cover any additional costs and price differentials that may arise during this period.
Q5. How does your factory manage quality control?
Quality is paramount. We place great importance on maintaining high-quality standards throughout the entire production process.
Q6. What is your delivery time?
A: Our standard delivery time is 7-20 working days after payment confirmation.
For urgent orders, we can expedite the process to meet your deadlines.
Q7. What are your payment terms?
A: 100% T/T in advance, Western Union (for small orders).
B: 30% T/T upfront, with the remaining 70% balance before shipment.
C: 100% Irrevocable LC at sight (for large orders).
Q8: Can you produce DDQ (Deep Drawing Quality) material?
A: Yes, we can. Our materials are suitable for making stainless steel pots, sinks, bowls, etc. Share your application with us, and we will tailor the mechanical properties to meet your specific requirements.
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 depending on the circumstances.
Q10: Which countries have you exported to?
A: To date, our stainless steel materials have been exported to countries including Vietnam, Thailand, Turkey, Russia, Morocco, South Korea, India, Pakistan, UAE, Ukraine, and many 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.
