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 dedicated to delivering top-tier quality products worldwide for many years. We pride ourselves on being the premier supplier of SS 431 Round Bars/Rods. Our export-quality round bars adhere to both national and international standards, offering a diverse range 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 high-performance shafts.
Hot Rolled Stainless Steel Rod
Our stainless steel rods and bars undergo a meticulous heating and rolling process through multiple passes in our advanced rolling mill. With comprehensive specifications, our products meet all industry standards and performance criteria.
Cold Drawn Bright Stainless Steel Rods
Our cold-drawn stainless steel rods are produced under stringent cold working conditions, resulting in a smooth surface finish. These rods can also be further polished and ground to meet specific requirements.
Forged Stainless Steel Rod and Bar
Forged stainless steel rods undergo multiple forging processes to enhance their mechanical properties, resulting in higher-strength stainless steel rods.
General Properties
Our extensive network of service centers stocks a vast array of stainless steel bar products for rapid and reliable supply. We also cater to custom-sized stainless steel bars and provide stocking programs for quick turnaround on smaller quantities. Daxun Alloys offers round bars ranging from 1/16" to 26" in diameter, available in various stainless steel grades 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 predominantly features our specialized processed bar grade: stainless steel round bars. These bars are melted to precise standards to enhance machinability and minimize total part costs. Leveraging our advanced stainless steel bar processing machinery, Daxun Alloys can meet the exacting specifications of our customers.
1. Heat Treatments Daxun can perform heat treatments on our stainless steel bars, tailored to the specific chemistry of the metal. 2. Positive Material Identification (PMI) We offer in-house PMI testing or collaborate with independent laboratories to provide additional material verification. 3. Ultrasonic Testing (UT) Utilizing high-frequency sound energy, our UT services inspect and measure stainless steel bar products for defect detection, dimensional accuracy, and more.
For detailed information regarding our stainless steel rods, please reach out to 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 Rods Manufacturing Capabilities
Our forming capabilities include cutting-edge radial forging machines, heat treatment furnaces, melting furnaces, and rolling mills for titanium rod production. Additionally, we utilize a specialized hydroforming process for part manufacturing.
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
Employing the world's most sophisticated 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.
Choose Jiangsu Daxun Alloy Co., Ltd. as your dependable and trusted supplier of premium Stainless Steel Rods.
Our stainless steel products come with thorough certifications and impeccable traceability. Jiangsu Daxun Alloy Co., Ltd. supplies the absolute finest quality stainless steel to a diverse array of leading industries, including 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 further information on our superior stainless steel rods, please reach out to the expert team at Jiangsu Daxun Alloy Co., Ltd.
Corrosion Resistance
431 Stainless Steel Bar Material boasts exceptional corrosion resistance against a broad spectrum of corrosive environments. While it offers some resistance to salt water in cooler southern waters, it is less effective in warmer tropical waters. The overall corrosion resistance of the 431 Round Bar Material is comparable to or slightly less than that of 304 Grade Material. Optimal performance is achieved when the material has a smooth surface in its hardened and tempered state.
Heat Resistance
This material resists 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 specified tempering temperature due to a reduction in mechanical properties.
Heat Treatment
Annealing
Full annealing is impractical for this grade as it hardens even when cooled slowly. For Process Anneal, heat to 620-660°C and then air cool.
Hardening
The material 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 be beneficial for complex parts or those already hardened. Temper to meet mechanical requirements, following the temperature guidelines in the accompanying table.
Avoid tempering in the range of 425-600°C due to reduced impact toughness, although the effect is less pronounced than in most other martensitic grades.
Welding
Welding this material is challenging due to cracking risks. Pre-heating at 200-300°C is advised prior to welding. For filler rods, Grade 410 can be used, but Grades 308L, 309, or 310 will yield more ductile welds if matching properties are not required. Post-weld heat treatment at 650°C is recommended.
Machining
In its annealed condition, this grade is relatively easy to machine, but machining becomes more difficult if hardened above 30HRC. The Ugima Improved Machinability version of Grade 431 significantly enhances machining speeds and tool life.
Typical Applications
Common applications include 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 products like plates and forgings in their respective specifications.
SS 431 grade stainless steel round bars
Stainless steel round bars are indispensable across various industries, from construction to automotive parts. To cater to these diverse needs, Daxun Alloys offers stainless steel round bars in numerous grades and sizes. Our state-of-the-art advanced cutting service ensures precise alignment with your requirements every time.
Can you produce stainless steel (SS) grinding bars and rods?
Yes, we specialize in SS grinding bars and rods that boast precise dimensions, unparalleled roundness and straightness, far superior to standard stainless steel polished bars. However, please note that the advanced processing incurs higher costs.
Q1: What products can you offer?
A: We offer a comprehensive range of general steel types such as 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L, and 300 series.
Additionally, we supply 400 series and duplex stainless steels like 2205, 2304, 2101, 2507, as well as high-nickel alloys like 904L, 800H, and 600H.
Q2: Can you produce products according to my own drawings?
Yes, we can manufacture products tailored to your drawings, ensuring they meet your highest satisfaction.
Q3: How does your factory maintain quality control?
Quality is our top priority. We implement rigorous quality control measures from the initial stages right through to the final product.
Q4: Can I request changes to the form of packaging and transportation?
Yes, we can customize the packaging and transportation as per your request.
However, please note that additional costs incurred during this process will be your responsibility.
Q5: How does your factory maintain quality control?
Quality is our top priority. We adhere to strict quality control procedures from start to finish.
Q6: How long is the delivery time?
A: Delivery time is typically 7 to 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 advance, or Western Union for small orders.
B: 30% T/T deposit with the balance 70% paid 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 DDQ materials are perfect for stainless steel pots, sinks, bowls, etc. Share your requirements, and we'll adjust the mechanical properties to meet your needs.
Q9: How can I obtain a sample?
A: FREE samples are available for your inspection and testing. For small pieces, we might cover the courier cost, depending on the situation.
Q10: Which countries have you exported to?
A: We have successfully exported 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.
