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Introduction
EN 10132-4 covers cold rolled narrow steel strip made from spring steels for general engineering and demanding spring applications. These steels are designed to provide high strength, hardness, elasticity, fatigue resistance, and suitable dimensional accuracy after appropriate heat treatment.
EN 10132-4 spring steel strips are used for manufacturing flat springs, clips, washers, retaining rings, spring components, precision mechanical parts, and other components requiring elastic performance and resistance to repeated loading.
Ladhani Metal Corporation is a manufacturer, supplier, and exporter of EN 10132-4 Cold Rolled Narrow Spring Steel Strip, supplying spring steel strips in various grades, thicknesses, widths, surface conditions, delivery conditions, and customized dimensions worldwide.
Applicable Standard
Standard Specification: EN 10132-4
Organization: European Committee for Standardization (CEN)
Title: Cold Rolled Narrow Steel Strip for Heat Treatment – Technical Delivery Conditions – Part 4: Spring Steels
Material Type: Spring Steel
Product Form: Cold Rolled Narrow Steel Strip
Material Type
• Spring Steel
• Carbon Spring Steel
• Alloy Spring Steel
• Heat-Treatable Steel
• Cold Rolled Spring Steel
• High-Strength Steel Strip
Forms of Supply
• Cold Rolled Spring Steel Strip
• Narrow Steel Strip
• Hardened Spring Steel Strip
• Tempered Spring Steel Strip
• Annealed Spring Steel Strip
• Precision Steel Strip
• Slit Steel Strip
• Coil Strip
• Cut-to-Length Strip
Grades Covered Under EN 10132-4
C67S | C75S | C85S | C90S | C100S | 51CrV4 | 55Cr3 | 56Si7 | 51CrMoV4
Supply Condition
• Soft Annealed
• Cold Rolled
• Hardened and Tempered
• Quenched and Tempered
• Spring Temper
• Stress Relieved where applicable
Surface Finish
• Cold Rolled Finish
• Bright Finish
• Smooth Finish
• Polished Finish
• Ground Finish
• Pickled and Descaled Finish where applicable
Standard Sizes
EN 10132-4 Spring Steel Strip
Thickness: 0.10 mm to 6.00 mm
Width: Up to 600 mm
Coil Weight: According to customer requirements
Length: Cut-to-length according to customer requirements
Custom thicknesses, widths, coil weights, lengths, edge conditions, and surface finishes are available according to customer requirements.
Chemical Composition of EN 10132-4
|
Steel name |
C |
Si |
Mn |
P max. |
S max. |
Cr |
Mo max. |
V |
Ni |
|
C55S |
0,52 to
0,60 |
0,15 to
0,35 |
0,60 to
0,90 |
0,025 |
0,025 |
max. 0,40 |
0,10 |
- |
max. 0,40 |
|
C60S |
0,57 to
0,65 |
0,15 to
0,35 |
0,60 to
0,90 |
0,025 |
0,025 |
max. 0,40 |
0,10 |
- |
max. 0,40 |
|
C67S |
0,65 to
0,73 |
0,15 to
0,35 |
0,60 to
0,90 |
0,025 |
0,025 |
max. 0,40 |
0,10 |
- |
max. 0,40 |
|
C75S |
0,70 to
0,80 |
0,15 to
0,35 |
0,60 to
0,90 |
0,025 |
0,025 |
max. 0,40 |
0,10 |
- |
max. 0,40 |
|
C85S |
0,80 to
0,90 |
0,15 to
0,35 |
0,40 to
0,70 |
0,025 |
0,025 |
max. 0,40 |
0,10 |
- |
max. 0,40 |
|
C90S |
0,85 to
0,95 |
0,15 to
0,35 |
0,40 to
0,70 |
0,025 |
0,025 |
max. 0,40 |
0,10 |
- |
max. 0,40 |
|
C100S |
0,95 to
1,05 |
0,15 to
0,35 |
0,30 to
0,60 |
0,025 |
0,025 |
max. 0,40 |
0,10 |
- |
max. 0,40 |
|
C125S |
1,20 to
1,30 |
0,15 to
0,35 |
0,30 to
0,60 |
0,025 |
0,025 |
max. 0,40 |
0,10 |
- |
max. 0,40 |
|
48Si7 |
0,45 to
0,52 |
1,60 to
2,00 |
0,50 to
0,80 |
0,025 |
0,025 |
max. 0,40 |
0,10 |
- |
max. 0,40 |
|
56Si7 |
0,52 to
0,60 |
1,60 to
2,00 |
0,60 to
0,90 |
0,025 |
0,025 |
max. 0,40 |
0,10 |
- |
max. 0,40 |
|
51CrV4 |
0,47 to
0,55 |
max. 0,40 |
0,70 to
1,10 |
0,025 |
0,025 |
0,90 to
1,20 |
0,10 |
0,10 to
0,25 |
max. 0,40 |
|
80CrV2 |
0,75 to
0,85 |
0,15 to
0,35 |
0,30 to
0,50 |
0,025 |
0,025 |
0,40 to 0,60 |
0,10 |
0,15 to
0,25 |
max. 0,40 |
|
75Ni8 |
0,72 to
0,78 |
0,15 to
0,35 |
0,30 to
0,50 |
0,025 |
0,025 |
< 0,15 |
0,10 |
- |
1,80 to
2,10 |
|
125Cr2 |
1,20 to
1,30 |
0,15 to
0,35 |
0,25 to
0,40 |
0,025 |
0,025 |
0,40 to
0,60 |
0,10 |
- |
max. 0,40 |
|
102Cr6 |
0,95 to
1,10 |
0,15 to
0,35 |
0,20 to
0,40 |
0,025 |
0,025 |
1,35 to
1,60 |
0,10 |
- |
max. 0,40 |
Phosphorus and sulfur are controlled according to the applicable EN 10132-4 requirements.
Mechanical Properties of EN 10132-4
Mechanical properties depend on the selected grade, strip thickness, width, and delivery condition.
|
Grade |
Tensile
Strength MPa |
Yield Strength
MPa |
Elongation % |
|
C67S |
650–850 |
As specified |
≥10 |
|
C75S |
700–900 |
As specified |
≥8 |
|
C85S |
750–950 |
As specified |
≥8 |
|
C90S |
800–1000 |
As specified |
≥7 |
|
C100S |
850–1050 |
As specified |
≥6 |
|
51CrV4 |
800–1000 |
As specified |
≥10 |
|
55Cr3 |
800–1000 |
As specified |
≥10 |
|
56Si7 |
800–1000 |
As specified |
≥10 |
|
51CrMoV4 |
800–1000 |
As specified |
≥10 |
Exact mechanical requirements vary according to the delivery condition and product dimensions.
Key Features of EN 10132-4 Spring Steel Strip
• High tensile strength
• Excellent elasticity
• High hardness after heat treatment
• Good fatigue resistance
• Excellent resilience
• Good wear resistance
• Precise dimensional tolerances
• Excellent surface quality
• Suitable for repeated loading
• Good heat-treatment response
Applications of EN 10132-4 Spring Steel Strip
Automotive Industry
• Suspension Components
• Clutch Components
• Retaining Clips
• Spring Washers
• Automotive Springs
Mechanical Engineering
• Flat Springs
• Coil Spring Components
• Retaining Rings
• Washers
• Clips
• Mechanical Spring Components
Industrial Equipment
• Spring Clips
• Tension Components
• Locking Components
• Industrial Springs
• Machinery Components
Precision Engineering
• Precision Springs
• Instrument Components
• Measuring Equipment Components
• Small Spring Parts
• Precision Clips
Fabrication and Heat Treatment
EN 10132-4 spring steel strips are suitable for forming and subsequent heat treatment according to the selected grade.
• Cold forming in suitable delivery conditions
• Stamping
• Slitting
• Blanking
• Bending
• Punching
• Hardening
• Tempering
• Stress relieving
Proper heat-treatment parameters are required to achieve the desired hardness, tensile strength, elasticity, and fatigue performance.
Heat Treatment
Spring steel grades are generally selected for their ability to achieve high strength and hardness through heat treatment.
• Annealing improves formability
• Hardening increases strength and hardness
• Tempering provides the required combination of hardness and toughness
• Stress relieving reduces residual stresses
• Controlled heat treatment improves spring performance
Advantages of EN 10132-4 Spring Steel Strip
• High strength
• Excellent spring properties
• Good fatigue resistance
• Excellent dimensional accuracy
• High hardness after heat treatment
• Good wear resistance
• Suitable for precision components
• Excellent surface quality
• Wide range of carbon and alloy spring steels
• Suitable for demanding mechanical applications
Conclusion
EN 10132-4 Cold Rolled Narrow Steel Strip covers spring steels designed for applications requiring high strength, elasticity, fatigue resistance, hardness, and dimensional precision. The standard includes carbon spring steel grades such as C67S, C75S, C85S, C90S and C100S, together with alloy spring steels including 51CrV4, 55Cr3, 56Si7 and 51CrMoV4.
Ladhani Metal Corporation supplies EN 10132-4 Cold Rolled Narrow Spring Steel Strip in applicable grades, thicknesses, widths, surface finishes, delivery conditions, and customized dimensions for automotive springs, flat springs, retaining rings, clips, washers, precision components, machinery parts, and industrial spring applications worldwide.
FOR REQUIREMENT OF THIS GRADE
OR FOR DETAIL CONTACT US AT :-
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