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Carbon Steel
DIN2445
st37.4/52.4
| Quantity: | |
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DIN 2445 ST37.4 OD 5mm hydraulic galvanized precision steel tube
Certificates: according to EN 10204 3.1
Inspection Items: Tensile stength, Yield stength, Elongation, Flattenging, Flaring
Chemical analysis
Eddy Current Test 100%, Size and surface checking 100%
Other test item can be arranged as per request
SIZE TOLERANCE | |||||
NAME |
Scope (mm) |
GB Series (mm) |
DIN series (mm) | Enterprise internal control standards (mm) |
Special high-precision (mm) |
Out diameter
| 2-30 | ±0.10 | ±0.08 | ±0.05 | ±0.03 |
31-40 | ±0.15 | ±0.15 | ±0.05 | ±0.03 | |
41-50 | ±0.20 | ±0.20 | ±0.08 | ±0.03 | |
51-60 | ±0.25 | ±0.25 | ±0.08 | ±0.03 | |
Wall thickness | 0.3-10 | ±10%; MIN±0.15 | ±10% | ±10%; MIN±0.05 | ±10%; MIN±0.03 |
Delivery Conditions
| Designaion | Symbol | Description |
| Cold drawn/hard | +C | No heat treatment after the final cold drawing process. |
| Cold drawn/soft | +LC | After the final heat treatment there is a suitable drawing pass. |
| Cold drawn and stress relieved | +SR | After the final cold drawing process there is a stress relief heat treatment in a controlled atmosphere. |
| Annealed | +A | After the final cold drawing process the tubes are annealed in a controlled atmosphere. |
| Normalized | +N | After the final cold drawing operation the tubes are normalized in a controlled atmosphere. |
Product Name: DIN 2445 ST37.4 Hydraulic Galvanized Precision Steel Tube
Product Overview
The DIN 2445 ST37.4 Hydraulic Galvanized Precision Steel Tube is a premium-grade engineered solution specifically developed for demanding hydraulic applications. Manufactured in strict compliance with DIN 2445 standards and enhanced with a protective zinc coating, this tube delivers exceptional corrosion resistance, precise dimensional accuracy, and reliable performance in high-pressure hydraulic systems across various industrial sectors.
Material Specification
Steel Grade: ST37.4 Carbon Steel
Composition: Optimized blend of carbon, manganese, silicon, phosphorus, and sulfur elements, ensuring superior mechanical strength, excellent ductility, and enhanced weldability for fabrication flexibility.
Key Features
Precision Engineering
Manufactured to exacting dimensional tolerances with a smooth internal surface, enabling optimal fluid dynamics, reduced pressure loss, and seamless compatibility with hydraulic components.
Advanced Galvanized Protection
The electro-galvanized zinc coating provides robust defense against corrosion, rust, and environmental degradation, significantly extending service life in moist or aggressive operating conditions.
High-Pressure Reliability
Engineered with reinforced structural integrity to withstand extreme hydraulic pressures, ensuring leak-free operation and long-term system safety.
Broad Application Versatility
Ideal for hydraulic cylinders, power transmission lines, control systems, and other critical components across automotive, construction, agricultural, and industrial machinery sectors.
Technical Parameters
Outer Diameter: 4mm–80mm (customizable)
Wall Thickness: 0.5mm–10mm (customizable)
Length: Custom-cut to requirements
Dimensional Tolerance: Compliant with DIN 2445 or customer specifications
Surface Treatment: Galvanized finish
Product Advantages
Standards Compliance: Fully conforms to DIN 2445 quality and precision benchmarks
Material Excellence: ST37.4 steel ensures optimal strength-formability balance for hydraulic use
Corrosion Defense: Galvanized layer offers superior protection in challenging environments
Precision Fit: Tight tolerances facilitate easy integration and reliable sealing
Dynamic Durability: Designed to maintain performance under continuous operation and mechanical stress
Cross-Industry Suitability: Adaptable to diverse hydraulic applications requiring longevity and precision
DIN 2445 ST37.4 OD 5mm hydraulic galvanized precision steel tube
Certificates: according to EN 10204 3.1
Inspection Items: Tensile stength, Yield stength, Elongation, Flattenging, Flaring
Chemical analysis
Eddy Current Test 100%, Size and surface checking 100%
Other test item can be arranged as per request
SIZE TOLERANCE | |||||
NAME |
Scope (mm) |
GB Series (mm) |
DIN series (mm) | Enterprise internal control standards (mm) |
Special high-precision (mm) |
Out diameter
| 2-30 | ±0.10 | ±0.08 | ±0.05 | ±0.03 |
31-40 | ±0.15 | ±0.15 | ±0.05 | ±0.03 | |
41-50 | ±0.20 | ±0.20 | ±0.08 | ±0.03 | |
51-60 | ±0.25 | ±0.25 | ±0.08 | ±0.03 | |
Wall thickness | 0.3-10 | ±10%; MIN±0.15 | ±10% | ±10%; MIN±0.05 | ±10%; MIN±0.03 |
Delivery Conditions
| Designaion | Symbol | Description |
| Cold drawn/hard | +C | No heat treatment after the final cold drawing process. |
| Cold drawn/soft | +LC | After the final heat treatment there is a suitable drawing pass. |
| Cold drawn and stress relieved | +SR | After the final cold drawing process there is a stress relief heat treatment in a controlled atmosphere. |
| Annealed | +A | After the final cold drawing process the tubes are annealed in a controlled atmosphere. |
| Normalized | +N | After the final cold drawing operation the tubes are normalized in a controlled atmosphere. |
Product Name: DIN 2445 ST37.4 Hydraulic Galvanized Precision Steel Tube
Product Overview
The DIN 2445 ST37.4 Hydraulic Galvanized Precision Steel Tube is a premium-grade engineered solution specifically developed for demanding hydraulic applications. Manufactured in strict compliance with DIN 2445 standards and enhanced with a protective zinc coating, this tube delivers exceptional corrosion resistance, precise dimensional accuracy, and reliable performance in high-pressure hydraulic systems across various industrial sectors.
Material Specification
Steel Grade: ST37.4 Carbon Steel
Composition: Optimized blend of carbon, manganese, silicon, phosphorus, and sulfur elements, ensuring superior mechanical strength, excellent ductility, and enhanced weldability for fabrication flexibility.
Key Features
Precision Engineering
Manufactured to exacting dimensional tolerances with a smooth internal surface, enabling optimal fluid dynamics, reduced pressure loss, and seamless compatibility with hydraulic components.
Advanced Galvanized Protection
The electro-galvanized zinc coating provides robust defense against corrosion, rust, and environmental degradation, significantly extending service life in moist or aggressive operating conditions.
High-Pressure Reliability
Engineered with reinforced structural integrity to withstand extreme hydraulic pressures, ensuring leak-free operation and long-term system safety.
Broad Application Versatility
Ideal for hydraulic cylinders, power transmission lines, control systems, and other critical components across automotive, construction, agricultural, and industrial machinery sectors.
Technical Parameters
Outer Diameter: 4mm–80mm (customizable)
Wall Thickness: 0.5mm–10mm (customizable)
Length: Custom-cut to requirements
Dimensional Tolerance: Compliant with DIN 2445 or customer specifications
Surface Treatment: Galvanized finish
Product Advantages
Standards Compliance: Fully conforms to DIN 2445 quality and precision benchmarks
Material Excellence: ST37.4 steel ensures optimal strength-formability balance for hydraulic use
Corrosion Defense: Galvanized layer offers superior protection in challenging environments
Precision Fit: Tight tolerances facilitate easy integration and reliable sealing
Dynamic Durability: Designed to maintain performance under continuous operation and mechanical stress
Cross-Industry Suitability: Adaptable to diverse hydraulic applications requiring longevity and precision
