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Jiangsu Yanli Metal Products Company Group
[China]
Address:
8401# chenlong mansion, zhangjiagang city Suzhou Jiangsu 215600 China
Phone:
86-512-58278556
Contact name:
Edison Wang , sales manager
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Jiangsu Yanli Metal Products Company Group



 
Steel Products

Cold Rolled Steel

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Cold Rolled Steel

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Cold Rolled Steel Strips (coils)

Product Specification:
The strips are manufactured from high quality killed and vacuum degassed steel cold rolled in-house in modern cold rolling mills with close dimensional tolerance. Standard grades are

Chemical Composition and Equivalent Standards

STANDARDS

PERCENTAGE

Indian

German
DIN

American
AIS/SAE

Japanese
JIS

C

Mn

Si
max

P
max

S
max

Cr

Ni

V

55 C 6

C55

1055

G4051

0.50 to 0.60

0.50 to 0.65

0.35

0.05

0.05

-

-

-

80 C 6

C75

1080

G4801SUP3

0.75 to 0.90

0.60 to 0.90

0.35

0.05

0.05

-

-

-

98 C 6

MK 100

1095

G4801SUP4

0.95 to 1.05

0.95 to 0.80

0.35

0.05

0.05

-

-

-

50 Cr 4 V2

50 Cr V4

6150

G4801SUP10

0.45 to 0.55

0.50 to 0.80

0.35

0.05

0.05

0.80 to 1.20

-

0.15

120 Cr 35

125Cr 1

40100E

-

1.10 to 1.30

0.30 to 0.60

0.25

0.05

0.05

0.20 to 0.50

-

-

2.0% Ni Steel

75 Ni-8B

SUBN15

-

0.75 to 0.90

0.35 to 0.65

0.0

0.04

0.15

-

1.80 to 2.20

-

Range and Technical Specifications:


Width

30 mm to 640 mm.

Thickness

0.17 mm to 2.50 mm

Finish

Bright Ground or Polished Blue, Brown and Grey

Edges

One or Both Edges Round, Square, Chamfered & Beveled

Grades

Steels having Medium and High Carbon and Low Alloy contents.

Tolerances

As per IS 2507-1975 or DIN 1544 Normal variations.

Microstructure

Tempered Martensite or Bainite

Hardness

As per customer's specific requirements for a particular purpose - Hardened & Tempered , as Rolled Hard and as Annealed.

The approximate range is given below:


Thickness Range (mm)

Hardened & Tempered

As rolled Hard

As Annealed

0.17 to 0.20

400 to 650 HV/40 TO 58 RC

300

-

0.30 to 0.45

400 to 575 HV/40 to 55 RC

-do-

-

0.50 to 0.90

300 to 575 HV/29 to 55 RC

-do-

180 to 200 HV/6 to12 RC

1.00 and above

280 to 550 HV/28 to 53 RC

-do-

-do-

Special Features:

  • Minimum de-carburisation.
  • Minimum edges camber.
  • Flatness across width.
  • No curling.

 

Application:
Suitable for manufacturing of -

  • Wood cutting band-saws, pit-saws, cross-cut saws, hand saws etc.
  • Also components like clutch plates, brake items, horn diaphragm.
  • Industrial knives for cutting leather, card-board, paper, sugar-cane, jute and other products.
  • Hand tools like paint scrapers, plastering trowel etc.
  • Spring and spring-washers.
  • Textile and jute mill accessories, forge hammer belts etc.

Packing Strips
Steel Strappings are manufactured from low and medium carbon strapping quality cold rolled steel strips, produced in-house with utmost control. The strips are then deburred, austempered, painted and waxed in continuous line with automatic controls, incorporating the latest technology. Proper selection of grade of steel is made to ensure ideal combination of physical properties

Steel strappings are produced with very close tolerances in dimension and physical properties, thereby ensuring a consistent and uniform quality. The straps conform to Indian and International Standards viz. IS:5872-1990 and ASTM-D3953. Steel Strappings are available both for Light Duty and Heavy Duty applications to allow a wise choice to the customer. Standard properties of straps are as follows:
any other size/property, special enquiry is to be made.
Special Features:
Edges
Edges of the strip are roller beveled by formed rolls, which removes the burrs and also provides better contact with seals during sealing.
Surface
Painting of strip surface is carried out on-line, by dipping in paint tank, wiping to maintain a constant coating thickness and finally in Infrared ovens. Painting ensures improved corrosion resistance with 48 Hrs. resistance to neutral salt spray as per IS-9844-1981.

Waxing of strip after painting improves transmission of tension during packing, especially around corners of the package, and ensures slippage load below 6.5 Kgs.

Zinc painting is done with Zinc enriched paint for corrosion resistance under very severe conditions, as also to provide cathodic protection when packing galvanized items. Zinc painted strips provide resistance against salt spray corrosion for 96 Hrs.
Colling
Coils are supplied either in Ribbon wound single coils, Oscillated Wound Coils and Jumbo Coils. Ribbon wound coils are single coils with individual layers wound directly over the previous layer. Oscillated Wound and Jumbo coils are wound on a core with each layer spaced at a particular pitch over the specified spool width.

The coils are normally supplied with following parameters. However, specific requirement of customers may also be supplied on enquiry.
Steel Strappings find extensive use in the following industries.:.

 

  • Steel & Non-ferrous Industries
  • Rolling and tube mills
  • Refractory
  • Glass, Paper, Plywood & Boards
  • TV Picture Tube
  • Foundries
  • Cotton & Jute bailing
  • Miscellaneous other industries

 

 

 


Related Keywords: CRCA , cold rolled steel coils


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