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 premier supplier of top-tier stainless steel products worldwide for many years. Our dedication to quality ensures that Daxun Alloys stands out as the best source for SS 431 Round Bars and Rods. We rigorously adhere to both national and international quality standards, exporting superior round bars in various specifications to clients around the globe. Type 431, a hardenable martensitic stainless steel, boasts high tensile and torsional strength, making it perfect for shaft manufacturing.
Hot Rolled Stainless Steel Rod
Our stainless steel rods and bars are meticulously heated and rolled through multiple passes in a rolling mill, ensuring complete specifications that meet stringent performance standards and requirements.
Cold Drawn Bright Stainless Steel Rods
Our cold-drawn stainless steel rods are precisely crafted under 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 rapid supply of stainless steel bar products in common sizes and alloys. We also offer custom-sized bars and can arrange stocking programs for quantities below factory minimums, guaranteeing prompt turnaround. Daxun Alloys stocks round bars from 1/16" to 26" in diameter, available 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
We pride ourselves on our unique processed bar grade inventory. Our stainless steel round bars are melted to exacting standards, improving machinability and reducing overall part costs. Our advanced machinery ensures that we meet precise customer specifications.
1. Daxun performs heat treatments based on the specific metal chemistry. 2. Positive Material Identification (PMI) may be necessary in some instances, which Daxun can conduct in-house or with an independent laboratory. 3. Ultrasonic Testing (UT) employs high-frequency sound energy to inspect and measure, aiding in defect detection, dimensional measurement, and more.
For further details 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 Rods Manufacturing Capabilities
Our forming capabilities feature state-of-the-art radial forging machines, heat treatment and melting furnaces, and rolling mills. We specialize in manufacturing titanium rods and employ a unique hydroforming process for part production.
Daxun's Heat Treatment Furnace
Our advanced heat treatment furnaces ensure the stability and superior performance of our stainless steel rods.
Daxun's Smelting Capability
Using the world's most advanced vacuum induction, vacuum consumable, and electroslag furnaces, we reduce impurities to enhance the performance of our stainless steel rods.
Allow us to be your reliable and trustworthy stainless steel rod supplier.
Our stainless steel products are fully certified and traceable. We proudly supply top-tier stainless steel to premier industries, including aerospace, industrial, medical, marine, and military sectors.
Mechanical properties of various grades of 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 |
For further details on our superior stainless steel rods, please contact Jiangsu Daxun Alloy Co., Ltd.
Corrosion Resistance
431 Stainless Steel Bar Material boasts exceptional corrosion resistance, making it suitable for various corrosive environments. While it offers some resistance to salt water in cold, southern waters, it may not perform as well in warm, tropical waters. Comparatively, its corrosion resistance is on par with or slightly less than 304 Grade Material. Optimal performance is achieved when the material maintains a smooth surface in a hardened and tempered state.
Heat Resistance
This material resists scaling at intermittent temperatures up to 925°C and continuous temperatures up to 870°C. However, it is generally not advised for use above the relevant tempering temperature due to potential reductions in mechanical properties.
Heat Treatment
Annealing
Full Anneal: Not practical for this grade due to its tendency to harden even with slow cooling. Process Anneal: Heat to 620-660°C, then air cool.
Hardening
Harden by heating to 980-1065°C, holding for about 30 minutes, then quench in air or oil. Pre-heating at 760-790°C may benefit complex parts or those already hardened. Temper according to mechanical needs, as detailed in the accompanying table.
Avoid the tempering range of 425-600°C due to potential reductions in impact toughness, though the effect is less severe compared to other martensitic grades.
Welding
Welding is challenging due to the risk of cracking. A pre-heat of 200-300°C is advisable before welding. While a Grade 410 filler rod is usable, Grades 308L, 309, or 310 can produce more ductile welds if matching properties are not essential. Post-weld, heat treat at 650°C.
Machining
In its annealed state, this grade is relatively easy to machine. However, machining becomes challenging if hardened above 30HRC. The Ugima Improved Machinability version of 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
These properties are specified for bar products in ASTM A276. Similar, yet 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 across various industries, from construction to automotive parts. Daxun Alloys offers these bars in a broad range of grades and sizes. With our advanced, complimentary cutting service, we ensure precise fulfillment of your specifications every time.
Can you provide SS grinding bars and rods?
Yes, we offer SS grinding bars and rods with precise dimensions, exceptional roundness, and straightness, superior to polished stainless steel bars. However, please note that the processing cost is also 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, and 316, as well as the 300 series.
Additionally, we provide 400 series stainless steel and duplex stainless steels like 2205, 2304, 2101, and 2507, as well as high-nickel alloys such as 904L, 800H, and 600H.
Q2: Can you produce products according to my drawings?
Yes, we can manufacture products precisely according to your drawings, ensuring the highest level of satisfaction.
Q3: How does your factory manage quality control?
Quality is our top priority. We consistently maintain strict quality control from the beginning to the end of the production process.
Q4: Can I request changes to the packaging and transportation?
Yes, we can modify the packaging and transportation methods according to your specific requirements,
but any additional costs incurred during this period will be borne by you.
Q5: How does your factory manage quality control?
Quality is our top priority. We consistently maintain strict quality control from the beginning to the end of the production process.
Q6: How long is the delivery time?
A: Delivery time is typically 7 to 20 working days after payment confirmation.
For urgent orders, we will expedite the production process to meet your needs.
Q7: What payment methods do you accept?
A: 100% T/T in advance, or Western Union for smaller orders.
B: 30% T/T upfront, with the remaining 70% before shipment.
C: 100% Irrevocable LC at sight for large orders.
Q8: Can you provide Deep Drawing Quality (DDQ) material?
A: Yes, we can supply DDQ material suitable for making stainless steel pots, sinks, bowls, etc. Provide us with your usage details, and we will adjust the mechanical properties to meet your requirements.
Q9: How can I obtain a sample?
A: FREE samples are available for your evaluation. If you need a small piece, we might cover the courier cost, depending on the situation.
Q10: Which countries have you exported to?
A: We have 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.
