Hunan Fushun Metal Co., Ltd. |
Grade : SUP10-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
SUP10-CSP Patented Strip Chemical composition
C | Si | Mn | P max. | S max. | Cr | Mo max. | V | Ni |
0,47 to 0,55 | max. 0,40 | 0,70 to 1,10 | 0,025 | 0,025 | 0,90 to 1,20 | 0,10 | 0,1 to 0,25 | max. 0,40 |
SUP10-CSP Patented 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 |
SUP10 | SUP10-CSP | 550 | 700 | 13 | 220 | - | - | 1 200 to 1 800 | 370 to 550 |
SUP10-CSP Patented 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.
SUP10-CSP Patented 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.
SUP10-CSP Patented 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
JIS G4802.
SUP10-CSP Patented 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
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.
SUP10-CSP steel is an alloy steel formulated for primary forming
into wrought products. 1.8159 is the EN numeric designation for
this material. 51CrV4 is the EN chemical designation. It has a
moderately low melting temperature and a fairly high embodied
energy among EN wrought alloy steels.
The steel, unlike other carbon and alloy grades, is characterized
by high hardness, low vulnerability to tempering, resistance for
variable and heavy loads, and the ability to operate at elevated
temperatures up to 300 ℃. Surface-hardened, retains excellent
strength properties of the core while maintaining sufficient
surface hardness.58CrV4 / 1.8161 and 59CrV4 / 1.2242 are related
grades with the same range of alloying additives. It is
distinguished by the higher carbon content, which makes it possible
to achieve even higher hardness after heat treatment.51CrV4 /
50CrV4 / 58CrV4 / 59CrV4 grades are supplied as hot-rolled bars,
drawn bars, wires, spring stripes, forgings are used for the
production of heavy-duty springs, axles, crankshafts, connecting
rods, compression springs, valve springs, springs, shock absorbers
or spring washers.It is mainly supplied in an annealed, softened,
heat-treated and raw conditions. Steel does not exhibit corrosion
resistance, so products should be protected with greases or
coatings.
SUP10-CSP Patented 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