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48Si7 1.5021 Quenched Tempered Spring Steel Strip

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48Si7 1.5021 Quenched Tempered Spring Steel Strip

48Si7 1.5021 Quenched Tempered Spring Steel Strip
48Si7 1.5021 Quenched Tempered Spring Steel Strip
48Si7 1.5021 Quenched Tempered Spring Steel Strip 48Si7 1.5021 Quenched Tempered Spring Steel Strip 48Si7 1.5021 Quenched Tempered Spring Steel Strip 48Si7 1.5021 Quenched Tempered Spring Steel Strip 48Si7 1.5021 Quenched Tempered Spring Steel Strip

Large Image :  48Si7 1.5021 Quenched Tempered Spring Steel Strip

Product Details:
Place of Origin: China
Brand Name: Fushun
Certification: ISO9001:2008
Model Number: 48Si7 1.5021
Payment & Shipping Terms:
Minimum Order Quantity: negotiable
Price: negotiable
Packaging Details: nylon/pallet/case
Delivery Time: 15-30 days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 40,000tons/year

48Si7 1.5021 Quenched Tempered Spring Steel Strip

Description
Thickness: 1 To 8 Mm Width: 10 To 400 Mm
Delivery Condition: Quenched Tempered +QT Surface Condition: Bright Or Blue
Grade: 48Si7 Number: 1.5021
Form: Steel Strip Standard: EN 10132-4
Highlight:

Silicon Tempered Spring Steel Strip

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48Si7 Tempered Spring Steel Strip

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BS EN 10132-4

BS EN 10132-4 48Si7 1.5021 Quenched Tempered Spring steel strip

 

 

Grade : 48Si7
Number: 1.5021
Classification: Steel
Standard:
EN 10132-4: 2000 Cold rolled narrow steel strip for heat treatment. Technical delivery conditions. Spring steels and other applications
 
Equivalent Materials
DIN 1.5021DIN 48Si7EN 1.5021

 

Dimensions and tolerances
Thickness: 1 to 8 mm; Tolerances: +/- 0.008 to 0.11 mm
Width: 10 to 400 mm; Tolerances: +/- 0.15 to 0.60

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

 

48Si7 1.5021 Quenched Tempered Strip Chemical composition

name number C Si Mn P max. S max. Cr Mo max. Ni
48Si7 1.5021 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

 

48Si7 1.5021 Quenched Tempered 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
48Si7 1.5021 580 720 13 225 - - 1 200 to 1 700 370 to 520

 

48Si7 1.5021 Quenched Tempered 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.

 

48Si7 1.5021 Quenched Tempered 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.

 

Hardened and Tempered Steel Strip (also known as hardened and tempered High carbon steel strip or, hardened and tempered carbon spring steel strip) is the basic raw material from which many different components are made, substantially being spring-type applications ranging from clutch plate segments to washers, retractor springs and even to tree springs in riding saddles and traditional clock springs. These strip products are a specialty of the Company and considerable plant development has taken place in recent years to facilitate a very wide range of dimensions, mechanical properties and coil weights. Hardened and Tempered Steel Strip gauges of between 0.10mm and 2.00mm can be processed and, depending on the appropriate combination to suit the process equipment, strip widths of between 4.76mm to 240mm are produced. The facilities also allow up to 2000kg coils to be produced though most are well below this, being governed by a very approximate relationship of 100kg per 25mm of width.

 

48Si7 1.5021 - specifications and application

Silicon spring steel is one of the most popular, simple, basic and at the same time the longest used grades in the production of spring elements and springs in the automotive industry and railroading.

 

Silicon steels are characterized by high strength properties, low ductility, resilience, susceptibility to decarburization, resistance to medium loads, low hardenability, and difficult welding.

 

48Si7 1.5021 steels, as well as replacements EN/DIN 48Si7 1.5021 have similar concentrations of alloy additives - including Silicon, which is responsible for the resilience of steel. Differences in grades result from the concentration of carbon, responsible for obtaining the appropriate hardness after heat treatment.Silicon steel, found mainly in the form of round bars and hot rolled flat bars, is used for the production of spiral, disk, bumper, cone, coil and flat springs, springing rings and spring washers, springs for cultivators, springs of steam locomotives, personal and goods wagons, flat vehicle springs rail, spring plates, safety valve springs and check valves.

 

The surface finish of Hardened and Tempered Steel Strip products is not too critical in general engineering applications where the normal blue-black (also known as blue-grey) oxidized finish from the heat treatment is satisfactory. By control of the atmospheres in the furnaces non-oxidised surfaces can also be produced, on a selected basis, and alternatively, steels can be satin or bright polished were needed, these finishes being as much for cosmetic reasons as for engineering purposes.

 

48Si7 1.5021 Quenched Tempered 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

 

48Si7 1.5021 Quenched Tempered 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.

 

48Si7 1.5021 Quenched Tempered 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

48Si7 1.5021 Quenched Tempered Spring Steel Strip 0

Contact Details
Hunan Fushun Metal Co., Ltd.

Contact Person: Ms. Florence Tang

Fax: 86-731-89853933

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