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Carbon Steel
DIN2391
ST35 45 52 as per request
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DIN2391 ST35 NBK Precision Seamless Steel Tube
Detail image
DIN 2391 seamless precision tubes applications —Used in Hydraulic & pneumatic cylinder, Mechanical and Automotive engineering
Description:
Chemical Composition
| Standard | Grade | Chemical Components (%) | |||||
| Symbol | Material No. | C | Si | Mn | P | S | |
| DIN2391 | St 35 | 1.0308 | ≤0.17 | ≤0.35 | ≥0.40 | ≤0.025 | ≤0.025 |
Delivery Conditions
The tubes shall be manufactured from cold drawn or cold rolled processes. The tubes shall be supplied in one of the delivery conditions as follows:
| Designation | Symbol | Description |
| Cold finished (hard) | BK | Tubes do not undergo heat treatment following the final cold forming and thus, have a rather high resistance to deformation. |
| Cold finished (soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding). |
| Cold finished and stress-relieved | BKS | Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
| Annealed | GBK | The last cold forming process is followed by annealing in a controlled atmosphere. |
| Normalized | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
Mechanical Properties
| Mechanical properties at room temperature | |||||||||||||
| Steel Grade | Minimum values for the delivery condition | ||||||||||||
| Steel Name | Steel Number | BK | BKW | BKS | GBK | NBK | |||||||
| Rm | A % | Rm | A % | Rm | ReH | A % | Rm | A % | Rm | ReH | A % | ||
| Mpa | Mpa | Mpa | Mpa | Mpa | Mpa | Mpa | |||||||
| St 35 | 1.0308 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 25 | 340 to 470 | 235 | 25 |
Product Introduction: DIN2391 ST35 NBK Precision Seamless Steel Tube
Product Overview:
DIN2391 ST35 NBK Precision Seamless Steel Tube is a high-quality precision-crafted tube designed for demanding industrial applications. Let's explore its features, specifications, and applications.
Key Features:
ST35 Steel Alloy: Made from the ST35 steel alloy, known for its excellent cold-forming properties and high strength. This alloy enhances the tube's performance in various applications.
Normalized to Improve Toughness: The tube undergoes a normalization process (NBK) to improve toughness and reduce internal stress, contributing to enhanced durability.
Smooth Surface Finish: The tube boasts a smooth surface finish, reducing friction and facilitating efficient fluid or gas flow in critical applications.
Wide Size Range: Available in a variety of sizes, catering to diverse industrial needs and allowing for flexible usage across different applications.
High precision: The NBK treatment process ensures the dimensional accuracy and straightness of the steel pipe, and meets the high-precision requirements of precision machinery and hydraulic systems for the pipeline.
Excellent surface quality: The surface finish of the steel pipe after bright annealing is high, which reduces frictional resistance and fluid resistance, and improves the operating efficiency of the system.
Excellent mechanical properties: ST35 material has high strength, good toughness and wear resistance, and can withstand high working pressure and impact load.
Good machinability: easy to cut, bend, drill and weld and other processing operations to meet diverse processing needs.
Wide applicability: suitable for automobile manufacturing, aerospace, machinery manufacturing, hydraulic transmission, instrumentation and other fields.
Applications:
DIN2391 ST35 NBK Precision Seamless Steel Tubes find applications in various industries, including:
Automotive Sector: Used in precision automotive components and systems requiring reliability and durability.
Mechanical Engineering: Ideal for applications demanding precise tolerances and structural integrity.
Hydraulic Systems: Well-suited for hydraulic and pneumatic systems due to its seamless construction and high-quality material.
Instrumentation: Commonly employed in precision instruments and equipment due to its tight tolerances.
Power Generation: Used in components for power generation systems requiring high-performance tubing.
Conclusion:
DIN 2391 ST35 NBK precision seamless steel tubes are the material of choice for many industrial sectors due to their excellent performance, high-precision dimensions and excellent surface quality. We are committed to providing our customers with the highest quality products and services to meet all your needs for precision seamless steel pipes. When you choose our DIN 2391 ST35 NBK precision seamless steel tubes, you choose quality, reliability and success. Contact us today to start your precision manufacturing journey!
DIN2391 ST35 NBK Precision Seamless Steel Tube
Detail image
DIN 2391 seamless precision tubes applications —Used in Hydraulic & pneumatic cylinder, Mechanical and Automotive engineering
Description:
Chemical Composition
| Standard | Grade | Chemical Components (%) | |||||
| Symbol | Material No. | C | Si | Mn | P | S | |
| DIN2391 | St 35 | 1.0308 | ≤0.17 | ≤0.35 | ≥0.40 | ≤0.025 | ≤0.025 |
Delivery Conditions
The tubes shall be manufactured from cold drawn or cold rolled processes. The tubes shall be supplied in one of the delivery conditions as follows:
| Designation | Symbol | Description |
| Cold finished (hard) | BK | Tubes do not undergo heat treatment following the final cold forming and thus, have a rather high resistance to deformation. |
| Cold finished (soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding). |
| Cold finished and stress-relieved | BKS | Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
| Annealed | GBK | The last cold forming process is followed by annealing in a controlled atmosphere. |
| Normalized | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
Mechanical Properties
| Mechanical properties at room temperature | |||||||||||||
| Steel Grade | Minimum values for the delivery condition | ||||||||||||
| Steel Name | Steel Number | BK | BKW | BKS | GBK | NBK | |||||||
| Rm | A % | Rm | A % | Rm | ReH | A % | Rm | A % | Rm | ReH | A % | ||
| Mpa | Mpa | Mpa | Mpa | Mpa | Mpa | Mpa | |||||||
| St 35 | 1.0308 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 25 | 340 to 470 | 235 | 25 |
Product Introduction: DIN2391 ST35 NBK Precision Seamless Steel Tube
Product Overview:
DIN2391 ST35 NBK Precision Seamless Steel Tube is a high-quality precision-crafted tube designed for demanding industrial applications. Let's explore its features, specifications, and applications.
Key Features:
ST35 Steel Alloy: Made from the ST35 steel alloy, known for its excellent cold-forming properties and high strength. This alloy enhances the tube's performance in various applications.
Normalized to Improve Toughness: The tube undergoes a normalization process (NBK) to improve toughness and reduce internal stress, contributing to enhanced durability.
Smooth Surface Finish: The tube boasts a smooth surface finish, reducing friction and facilitating efficient fluid or gas flow in critical applications.
Wide Size Range: Available in a variety of sizes, catering to diverse industrial needs and allowing for flexible usage across different applications.
High precision: The NBK treatment process ensures the dimensional accuracy and straightness of the steel pipe, and meets the high-precision requirements of precision machinery and hydraulic systems for the pipeline.
Excellent surface quality: The surface finish of the steel pipe after bright annealing is high, which reduces frictional resistance and fluid resistance, and improves the operating efficiency of the system.
Excellent mechanical properties: ST35 material has high strength, good toughness and wear resistance, and can withstand high working pressure and impact load.
Good machinability: easy to cut, bend, drill and weld and other processing operations to meet diverse processing needs.
Wide applicability: suitable for automobile manufacturing, aerospace, machinery manufacturing, hydraulic transmission, instrumentation and other fields.
Applications:
DIN2391 ST35 NBK Precision Seamless Steel Tubes find applications in various industries, including:
Automotive Sector: Used in precision automotive components and systems requiring reliability and durability.
Mechanical Engineering: Ideal for applications demanding precise tolerances and structural integrity.
Hydraulic Systems: Well-suited for hydraulic and pneumatic systems due to its seamless construction and high-quality material.
Instrumentation: Commonly employed in precision instruments and equipment due to its tight tolerances.
Power Generation: Used in components for power generation systems requiring high-performance tubing.
Conclusion:
DIN 2391 ST35 NBK precision seamless steel tubes are the material of choice for many industrial sectors due to their excellent performance, high-precision dimensions and excellent surface quality. We are committed to providing our customers with the highest quality products and services to meet all your needs for precision seamless steel pipes. When you choose our DIN 2391 ST35 NBK precision seamless steel tubes, you choose quality, reliability and success. Contact us today to start your precision manufacturing journey!
