BS EN 10132-4 125Cr2 1.2002 Alloy Spring steel strip
Grade : 125Cr2 Number: 1.2002
Standard:
EN 10132-4: 2000 Cold rolled narrow steel strip for heat treatment. Technical delivery conditions. Spring steels and other applications
Equivalent Materials
IS 120Cr35JIS SKS81MDIN 125Cr1DIN 1.2002DIN 125 Cr 1DIN 125Cr2AFNOR 125Cr2AFNOR XC130BS 125Cr2JIS SKS81EN 1.2002GOST 13Ch
Dimensions and tolerances
Thickness: 0.1 to 5 mm; Tolerances: +/- 0.008 to 0.11 mm
Width: 10 to 400 mm; Tolerances: +/- 0.15 to 0.60
*accept nonstandard size, please contact with our sales.
Our Advantage
1. Precise thickness, uniform hardness. Bright surface, smooth edge.
2. High flatness of board surface, high performance after multiple bending.
3. No cracking after stamping, and the quality is stable. And we provide Self-Inspection Reports and Raw-Material Test Certificates.
4. Professional anti-rust protective packaging. On time delivery, competitive price.
5. Large stock available, no MOQ requirement
125Cr2 1.2002 Alloy Strip Chemical composition
| name | number | C | Si | Mn | P max. | S max. | Cr | Mo max. | V | Ni |
| 125Cr2 | 1.2002 | 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 |
125Cr2 1.2002 Alloy Strip Mechanical properties
| Steel designation | delivery condition |
| annealed (+A) or annealed and skin passed (+LC) | cold rolled (+CR) | quenched and tempered (+QT) |
| name | number | Proof strength max. Mpa | Tensile strength max. Mpa | Elongation % min. | HV max. | Tensile strength max. Mpa | HV max. | Tensile strength Mpa | HV |
| 125Cr2 | 1.2002 | 590 | 750 | 11 | 235 | - | - | 1 300 to 2 100 | 405 to 630 |
125Cr2 1.2002 Alloy Strip Delivery condition
Cold rolled narrow steel strip covered by EN10132-4 shall be supplied in one of the following delivery conditions:
-annealed or annealed and skin passed(+A or +LC);
-cold rolled(+CR);
-quenched and tempered(+QT).
NOTE The delivery condition-annealed to achieve spheroidized carbides(+AC)-may be agreed. In such cases, limits on spheroidization and mechanical properties may also be agreed at the time of enquiry and order.
125Cr2 1.2002 Alloy Strip Surface finish
The surface finish of cold rolled narrow steel strip shall be bright as produced by rolling and annealing in a controlled atmosphere.
The surface finishes of quenched and tempered cold rolled strip are as follows:
1 grey/blue oxide finish:unpolished;
2 brigth tempered:unpolished
3 polished: obtained by fine grinding, abrasive brushing or other processes;
4 polished and coloured:blue or yellow colour obtained by oxidization by heat treatment.
125Cr2 1.2002 Alloy Strip Mandatory information
The following information shall be supplied by the purchaser at the time of enquiry and order to enable the supplier to comply with the requirements of this European Standard:
a) the quantity to be delivered;
b) the designation of the product form (cold rolled narrow strip);
c) the number of the dimensional standard (EN 10140);
d) the dimensions and tolerances on dimensions and shape and, if applicable, letters
denoting relevant special tolerances;
e)the number of this European Standard including the number of the relevant part;
f) steel name or steel number
g) the delivery condition
h) if required, the type of inspection document in accordance with EN 10204.
125Cr2 1.2002 Alloy Strip Decarburization
For silicon alloyed steels, decarburization shall not exceed 3% of the material thickness per side,for non silicon alloyed steels, decarburization shall not exceed 2% of the material thickness per side when measure data distance of 5mm from the stripe edge
Steel C125S, 1.1224 - implementation and specification
Non-alloy carbon spring steel is used for leaf springs and springs with small cross-sections. It is characterized by low hardenability and high carbon range in relation to C90S, C75S, C85S, and C67S steel. Designed for spring elements requiring high elasticity and hardness.It does not show corrosion resistance, and during heat treatment it is exposed to decarburization and oxidation, which means that the material should be protected against treatment using a protective atmosphere. Poorly carried out treatment is associated with reduced fatigue strength.Products made of C125S steel and its equivalents are produced in the form of flat semi-finished products - cold rolled strips, small-format thin sheets. Tempering of C125S steel is carried out in oil, and after tempering the product shows the structure of tempered martensite.Products made of C125S steel are characterized by high tensile strength and yield strength. Thermal improvement consists in austenitising the product at a temperature of 780 - 860 and tempering at a temperature of 350 - 500 ℃.
125Cr2 1.2002 Alloy Strip Inspection and testing
verification of the dimensions
visual examination of the surface quality
Chemical analysis
Extent of testing
Tensile and bending tests
Tolerances on shape
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