BS EN C90S 1.1217 Blue Spring Steel Strip

BS EN C90S 1.1217 Blue Spring Steel Strips

Grade : C90S Number: 1.1217

C90S 1.1217 Blue Steel Strips Chemical composition

C90S 1.1217 Blue Steel Strips Mechanical properties

C90S 1.1217 Blue Steel Strips 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.

C90S 1.1217 Blue Steel Strips 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

C90S 1.1217 Blue Steel Strips 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.

C90S 1.1217 Blue Steel Strips 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.

We hold expertise in providing a qualitative range of Blue Tempered Steel Strips to our clients at affordable prices. Owing to features like high efficiency, optimum performance and durable finish standards they are highly demanded in the market. Our ranges of these are used in various industries like automobile, cable and electronic industries. Clients can avail these strips in various dimensions with thickness as per their own requirement. We supply these at market leading prices. Known for its durability and rigidity, blue spring steel is often used in the production of clips, blades/knives, springs, coiled springs, washers, saw blades, trowels, scrapers, doctor blades for pulp mill & printing applications, spring clamps, antennas, lock picks, clock hands, grass/grain cutting tools, and brake discs.

high carbon steel blue tempered spring steel strip is harder, less bendable, and has a higher degree of spring back. Finished products made from this material have better edge retention, which correlates to the material's other properties. blue spring steel strip is used widely in the manufacture of springs, prominently in automotive and industrial suspension applications. It is a high carbon steel with a very high yield strength. This material allows objects made of spring steel to return to their original shape despite significant deflection or twisting.

C90s, 1.1217, 95cr1, 1.2018 - low-alloy spring steel with high carbon content for heat treatment - oil hardening according to en 10132-4 and en 10270-1. Spring construction steel for oil hardening for springs and working periodically springs with small dimensions.

Provided in the form of a spring tapes - C90S is characterized by high abrasion resistance and high strength.In addition to the use for springs, it is also designed for wood and stone saws, knives and machine scissors, spring washers, cutting elements and cutting tools. After the treatment shows the structure of tempered martensite. During heat treatment, a protective atmosphere should be used to avoid decarburization and oxidation of the material.C90S steel has a higher carbon content than C67S, C55S and C75S.

C90S 1.1217 Blue Steel Strips 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
• Any requirement from clients