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JIS G4802 S70C-CSP Patented Spring Steel Strip

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JIS G4802 S70C-CSP Patented Spring Steel Strip

JIS G4802 S70C-CSP Patented Spring Steel Strip
JIS G4802 S70C-CSP Patented Spring Steel Strip JIS G4802 S70C-CSP Patented Spring Steel Strip

Large Image :  JIS G4802 S70C-CSP Patented Spring Steel Strip

Product Details:
Place of Origin: China
Brand Name: Fushun
Certification: ISO9001:2008
Model Number: C75S 1.1248
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

JIS G4802 S70C-CSP Patented Spring Steel Strip

Thickness: 0.1 To 5 Mm Width: 10 To 400 Mm
Delivery Condition: Patented Surface Condition: 1 Grey/blue Oxide Finish:unpolished;2 Bright Tempered:unpolished; 3 Polished: 4 Polished And Coloured:blue Or Yellow Colour
Steel Grade: C75S Steel Number: 1.1248
Form: Steel Strip Standard: BS EN 10132-4
High Light:

1.1248 Patented Spring Steel Strip


S70C-CSP Patented Spring Steel Strip


JIS G4802 hot rolled steel strip

JIS G4802 S70C-CSP Patented Spring Steel Strip


Grade : S70C-CSP Classification: spring steel Standards: JIS G 4802 : Cold-rolled steel strip for springs


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


S70C-CSP Patented Spring Steel Strip Chemical composition

C Si Mn P max. S max. Cr Mo max. Ni
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


S70C-CSP Patented Spring Steel 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
S70C S70C-CSP 510 640 15 200 1170 320 1 200 to 1 900 370 to 580



S70C-CSP Patented Spring Steel Strip Delivery condition

Cold rolled narrow steel strip covered by JIS G4802 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.


S70C-CSP Patented Spring Steel 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


S70C-CSP Patented Spring Steel 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.



S70C-CSP Patented Spring Steel 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 ;

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.


Spring steel strip is used to build springs for a great variety of purposes. Below especially the cold rolled (carbon as well as stainless) spring steel strip will be described in detail. The most common production width of spring steel strip is about 300 mm (11.811 inches). As a matter of course spring steel strip can be slit or cut to length (sheets). We supply a very wide range of high carbon and alloys, covering the most stringent industrial requirements. We have also developed a unique know-how in the design of custom solutions for special applications.


S70C-CSP - Carbon spring steel with low hardening capacity for lightweight springs for oil hardening. It is characterized by resistance to abrasion and high strength. Used for low-loaded springs and springs, spring parts, clock springs, saws for cutting stones in the form of tapes and sheets.


Equivalent Materials


As a constructional steel, it is used for medium-weight machine parts such as bolts and bucket links, rolls, molding boards, agricultural machinery parts, press plates and ball mills, press rods, and briquette presses. Non-weldable steel, resistant to temper embrittlement, prone to decarburization and oxidation during heat treatment.


We hold expertise in providing a qualitative range of Patented Steel Strips to our clients at affordable prices. High carbon steel is an ideal material for custom flat springs, custom clips, and custom sheet metal stampings. High Carbon Steel Strips combines ease of fabrication with good strength and surface finish, is valued for its strength properties and operates at significantly higher levels than the mild steel grades. cold-rolled spring steel strips are gaining popularity in various industries. They are increasingly being implemented in engineering projects, through a fairly large number of small component manufacturers, parts and machine components.By making the right choice to buy steel strips, we reduce the amount of waste produced, thereby saving time and space. With a constant focus on the needs and requirements of our customers, we have created a unique offer.


S70C-CSP Patented Spring Steel 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

JIS G4802 S70C-CSP Patented Spring Steel Strip 0

Contact Details
Hunan Fushun Metal Co., Ltd.

Contact Person: Ms. Florence Tang

Fax: 86-731-89853933

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