Xm 19 Round Bar
product parameters
XM-19 stainless steel bar is a high-performance austenitic stainless steel material. With its excellent strength, corrosion resistance and good processing performance, it shows unique advantages in many industrial fields.
Chemical Compositions (%)
XM-19 stainless steel bar is mainly composed of iron (Fe), chromium (Cr), nickel (Ni), manganese (Mn), molybdenum (Mo), nitrogen (N) and other elements. Among them, the chromium content is about 20.5-23.5%, the nickel content is about 11.5-13.5%, the manganese content is about 4.0-6.0%, the molybdenum content is about 1.5-3.0%, and the nitrogen content is about 0.2-0.4%. This unique combination of chemical components gives XM-19 stainless steel bar excellent performance.
| Standard | Steel Grade | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition % | |||||||||||
| C | Mn | Si | P | S | Cr | Ni | Mo | V | Nb | N | |
| ASTM | NITRONIC 50® | ||||||||||
| <0.06 | 4.0 - 6.0 | <0.75 | <0.040 | <0.030 | 20.5 - 23.5 | 11.5 - 13.5 | 2.0 - 3.0 | 0.1 - 0.3 | 0.1 - 0.3 | 0.2 - 0.4 | |
| ASTM | UNS S20910 | ||||||||||
| <0.06 | 4.0 - 6.0 | <1.00 | <0.045 | <0.030 | 20.5 - 23.5 | 11.5 - 13.5 | 1.5 - 3.0 | 0.1 - 0.3 | 0.1 - 0.3 | 0.2 - 0.4 | |
| ASTM | XM-19 - XM19 | ||||||||||
| <0.06 | 4.0 - 6.0 | <0.75 | <0.040 | <0.030 | 20.5 - 23.5 | 11.5 - 13.5 | 1.5 - 3.0 | 0.1 - 0.3 | 0.1 - 0.3 | 0.2 - 0.4 | |
| SEW 390 | 1.3964 - X2CrNiMnMoNNb21-16-5-3 | ||||||||||
| <0.03 | 4.0 - 6.0 | <1.00 | <0.025 | <0.010 | 20.0 - 21.5 | 15.0 - 17.0 | 3.0 - 3.5 | - | <0.25 | 0.20 - 0.35 | |
| SEW 390 | 1.3974 - X2CrNiMnMoNNb23-17-6-3 | ||||||||||
| <0.03 | 4.5 - 6.5 | <1.0 | <0.025 | <0.010 | 21.0 - 24.5 | 15.5 - 18.0 | 2.8 - 3.4 | - | 0.1 - 0.3 | 0.3 - 0.5 | |
Mechanical Properties
Comparison of the performance of XM-19 stainless steel round bar and some common stainless steel rods (such as 304 stainless steel rod, 316 stainless steel rod):
| Performance index | XM-19 stainless steel bar | 304 stainless steel bar | 316 stainless steel bar |
| Strength | High strength, tensile strength up to 690 MPa, yield strength up to 345 MPa | General strength, tensile strength of about 515-795 MPa, yield strength of about 205 MPa | General strength, tensile strength of about 515-620 MPa, yield strength of about 205 MPa |
| Corrosion resistance | Good resistance to a variety of corrosive media, including chloride ion environment | Good corrosion resistance to general atmospheric environment, fresh water, etc., but prone to pitting in chloride ion environment | Excellent corrosion resistance, especially in chloride ion environment, better corrosion resistance than 304 stainless steel, also good corrosion resistance to sulfuric acid, phosphoric acid, acetic acid, etc. |
| Wear resistance | Good wear resistance | General wear resistance | General wear resistance |
| Processing performance | Good processability, can be formed through a variety of processing techniques, good welding performance | Good processing performance, easy to perform cold and hot processing, good welding performance | Good processing performance, cold and hot processing performance and welding performance are good |
| High temperature resistance | Good strength and oxidation resistance at high temperature | Average high temperature performance, long-term use temperature should not exceed 800℃ | Better high temperature performance than 304 stainless steel, long-term use temperature should not exceed 800℃ |
Performance characteristics
(i) High strength
xm 19 Round Bar has excellent strength performance, with a tensile strength of up to 690 MPa and a yield strength of up to 345 MPa, making it perform well under heavy loads and high stress environments.
(ii) Good corrosion resistance
xm 19 stainless steel has good resistance to a variety of corrosive media, including chloride ion environments, acidic solutions and alkaline solutions. It can operate stably for a long time in marine environments, chemical industries and sewage treatment, reducing material failure and equipment failure caused by corrosion.
(iii) Excellent wear resistance
xm 19 material has a high surface hardness and good wear resistance. It is suitable for applications that require long-term friction and wear, such as mechanical parts, conveying systems, etc.
(iv) Good processing performance
astm a276 xm19 has good processability and can be made into parts and components of various shapes and sizes through forging, rolling, stretching, bending and other processing processes. At the same time, it also has good welding performance and can be connected by a variety of welding methods.
Material 1.4545/X5CrNiCuNb15-5/15-5ph Steel Bar Photos

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Sichuan Huitai Special Metals co.,ltd
As a traditional manufacturer of high-quality special metal materials, Huitai Special Metals has been committed to the research, development and production of special tool steel, die steel and alloy steel since 1997. Especially for High-strength alloy steel, Roll and Gear steel, we have very stable production process and quality assurance on it.
Advantages
Complete Production Line: Electric Power,Smelting,Forging,Heat Treatment,Machining, Physical&Chemical Test Center.
Competitive Grades
13Cr11Ni2W2MoV/961,1Cr12Ni3Mo2VN (J2,M152),1Cr12Ni2WMoVNb (851Nb),17-4PH,USU630,0Cr14Ni5Mo2Cu2Nb ( FV520B),789,XM 19,XM25,C450,GTD450,S45000 etc
High-Quality Customized Services
Wide Range Specifications: Diameter 5-800mm; Thickness 1-800mm; Width 100-1800mm

Production Process


XM-19 xm round bar are widely used in the following fields due to their excellent performance:
1. Oil and gas industry:
- Downhole tools and components: such as drill pipes, sucker rods, tubing hangers, packers, etc., can work reliably in harsh downhole environments, including highly corrosive oil and gas well fluids and high-pressure environments.
- Pipeline system: Pipelines used to transport corrosive oil and gas, acidic oil and gas fields.
- Valve and pump components: Used to manufacture internal parts of valves and pumps that withstand highly corrosive media and high pressure.
2. Chemical industry:
- Chemical reaction vessels: Used to manufacture various chemical reaction vessels, such as stirred tanks, reaction towers, etc., which can withstand the corrosion of chemical substances and the pressure and temperature changes during the reaction process.
- Heat exchangers: Heat exchangers can be made in the chemical production process to handle corrosive chemical fluids.
3. Marine engineering:
- Marine platform structural parts: such as support structures, handrails, railings, etc.
- Shipbuilding: Used to manufacture ship shafting, propellers, seawater pipelines and other components, which can resist the corrosion of seawater and the erosion of the marine environment.
4. Food and Beverage Industry:
- Food processing equipment: such as mixers, transmission equipment, storage tanks, etc., due to their good corrosion resistance and hygienic properties, they are suitable for various equipment in the food processing process.
5. Medical Industry:
- Medical Equipment: Manufacturing surgical instruments, implants, parts of medical equipment, etc., meeting the requirements of high strength, corrosion resistance and biocompatibility of materials.
6. Construction and Decoration Industry:
- External Building Decoration: Applied in exterior decoration and structural parts of buildings with high requirements for corrosion resistance and strength.
7. Sewage Treatment and Environmental Protection Industry:
- Sewage Treatment Equipment: Used to manufacture equipment parts for treating corrosive sewage.
Quality Control
We always adhere to a strict quality management system, from raw material procurement to production and processing, finished product inspection and other links, all of which are strictly controlled. Each XM-19 stainless steel bar undergoes chemical composition analysis, mechanical properties testing, non-destructive testing, dimensional testing and other tests to ensure that the product quality meets international standards and customer requirements.

Methods to improve the corrosion resistance of XM-19 stainless steel rods:
1. Surface treatment:
Passivation treatment: Forming a thin and dense passivation film on the surface of stainless steel rods through chemical or electrochemical methods can significantly improve its corrosion resistance. Passivation treatment can be carried out using nitric acid, chromate and other solutions.
Coating protective layer: Coating the surface of stainless steel rod with organic coating (such as epoxy resin, polyurethane, etc.), inorganic coating (such as ceramic coating) or metal coating (such as nickel plating, zinc plating, etc.). These coatings It can isolate stainless steel from corrosive media and enhance corrosion resistance.
2. Control the production process:
Optimizing the smelting and casting process, reducing the content of impurities and inclusions, improving the purity of the material, and helping to improve corrosion resistance.
Precisely control the heat treatment process to obtain appropriate microstructure and grain size of stainless steel rods. The uniform structure helps to enhance corrosion resistance.
3. Reasonable design and use:
When designing structures and components using stainless steel rods, avoid gaps, dead corners and other places where liquid and dust can easily accumulate, because these places are prone to local corrosion.
Avoid direct contact between stainless steel rods and dissimilar metals to prevent galvanic corrosion. If contact cannot be avoided, insulation measures should be taken or metals with similar potential should be selected.
4. Environmental control:
Try to control the use environment as much as possible to reduce the corrosive effect of factors such as the concentration, temperature and pressure of corrosive media on stainless steel rods. For example, reduce the acidity and chloride ion content of the medium.
5. Regular maintenance and cleaning:
Clean stainless steel rods in use regularly to remove dirt, corrosion products and sediments on the surface to prevent these substances from accelerating corrosion.
Carry out regular inspection and maintenance of stainless steel rods to detect and deal with early corrosion damage in time to prevent further corrosion development.
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