| Customization: | Available |
|---|---|
| Type: | Stainless Steel Bars |
| Standard: | ASTM, AISI, GB, JIS, DIN, EN |
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| 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 |
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.
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 | - |
| 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 |
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.
Our advanced heat treatment furnace equipment ensures the stability and high performance of our stainless steel rod materials.
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.
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.
| 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 |
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.
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.
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.
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 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.
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.
Common applications include nuts and bolts, propeller shafting, pump shafts, beater bars, and marine hardware.
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.
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.
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