Posts by ersien

Home » Arşiv ersien » Page 3

High Carbon Steel Spring Wires

STEEL WIRES

Kromtel carbon steel wires are produced from finest wire rods. These wires are adequate for flattening use and will neither burst nor crack.

Carbon steel wires are mainly used for springs and mattresses, other than those mentioned it is also used for other woven applications; woven cage productions, CO2 welding wires, zig-zag spring wires, music wires and rope wires.

Our products comply with global standards and have quality certificates issued by institutions like ISO and TÜV.

DIN 17223/84 NORM CARBON STEEL SPRING WIRE

(A, B, C, D CLASS GALVANIZED AND PHOSPHATE COATED) 

Kromtel’s carbon steel wires comply with the DIN 17223/84 standard and are coated with phosphate and galvanize. They can be acquired as A, B, C and D Class.

    DIN 17223/84

                  Diameter (mm)

                                                         Chemical Analysis

 C %

 Si %

 Mn %

P %

S %

Cu %

A Class

0.10-20

     0.40

0.10

0.30

Max

Max

Max

     0.85

0.35

1.00

0.04

0.04

0.20

B Class

0.10-20

0.55

0.10

0.30

Max

Max

Max

0.85

0.35

1.00

0.040

0.040

0.20

C Class

0.10-20

0.70

0.10

0.30

Max

Max

Max

1.00

0.35

1.50

0.030

0.030

0.12

D Class

0.10-20

0.70

0.10

0.30

Max

Max

Max

1.00

0.35

1.50

0.030

0.030

0.12

EN 10270-1 : 2001                                     Service Properties                              Applications
               SL Tension, compression or torsion springs subjected to low static stress.         Magazine binding wires, hangers, staples.
              SM Tension, compression or torsion springs subjected to medium high static stresses or rarely to dynamic stresses.         Binding wires, springs, circlips.
              DM Tension, compression or torsion springs which are subjected to medium high dynamic stresses. Also for wire forms which require severe bending.         Circlips, wire rope, lock levers.
               SH Tension, compression or torsion springs which are subjected to high static stresses or slightly dynamic stresses.         Tyre cord reinforcement,
               DH Tension, compression or torsion springs or wire forms which are subjected to high static stresses or medium level dynamic stresses.         Helical springs, compression springs.
STANDARDS

                              DIN / ASTM / SAE

                      EURO 

                               TS                           

                           DIN 17223/A

                       EN  10270-1-SL

        TS2500-1-SL

                           DIN 17223/B

                        EN  10270-1-SM

         TS2500-1-SM

                           DIN 17223/C

                       EN  10270-1-SH

        TS2500-1-SH

                           DIN 17223/D

                        EN  10270-1-DH

         TS2500-1-DM

    SL : Low tensile static                  SH : High tensile static
    SM : Medium tensile static                DH : High tensile dynamic
    DM : Medium tensile dynamic  

Stainless Steel Cold Heading Wire

Stainless Steel Wires for Nuts, Bolt Screws and Rivets

Kromtel can supply stainless steel wires for rivets, nuts, and bolt screws at the requested sizes and qualities regarding your schedules.

Grades: 302HQ, 304, 304Cu, 304J3, 305J1, 316Cu, 316L, 410, 430, 430Cu, XM-7

Most important features of the Kromtel cold heading wire:

  • High Formability
  • Smooth surface
  • Proper surface coating
Standards

ASTM A439, JIS G4315, KS D3703, SAE J405

Stainless steel cold heading wires used for nuts, bolt screws and clinches are supplied by Kromtel for the automobile industry, construction industry, paper industry and sectors in which pollution control is a must such as refrigerators, wash machines, dishwashers and video cameras.

The most commonly used stainless steel wires for cold forming are the K304Cu and K302HQ quality. K316Cu quality should be preferred for the production of materials resistant to acidic environments.

With K410 and K430 quality it is possible to manufacture rivets, screws and nuts with magnetic characteristics.

Surface properties regarding the area of use;

  • Copper coated
  • Stereat coated
  • Matte surface

Kromtel Stainless steel wires for nuts, bolt screws and rivets are conforming the world standards for physical, chemical and mechanic properties and are the most appropriate wires for cold forming process.

Stainless Steel Spring Wires

All kinds of energies are converted to thermal energy at one point. You can reduce the thermal energy and keep it as potential energy. Stainless steel wires for spring applications have a broad range of usage such as automotive, construction, space, house appliances, food and pharmacy industries. Cold rolled steel spring wires that can be obtained: compression spring, extension spring, torsion spring, special form springs which require high surface tensile. For battery manufacturing purposes Ni coated (Ni-Br) wires are provided. Stainless steel wires for springs are provided on standard up to 0.80 mm with shiny surface and in different type of spools, all sizes above 0.20 mm and thicker are provided as coils with soap coating and nickel coating. Approximately more than 150 different sizes from 0.10 mm to 12 mm can be found in Kromtel stocks.

Kromtel

Norm

AISI Werkstoff Nr. Application
K302 302 1,4310 K302 quality wires are the most common used ones. They have almost no magnetic characteristics and are general purpose wires.
K302
(Ni-Br)
302 
(Ni-Br)
Those wires are used for battery springs due to their excellent soldering characteristics and have a shiny surface that is coated with nickel.
KOSNIC Those wires are used for battery springs due to their excellent soldering characteristics and have a shiny surface that is coated with nickel.
K304 304 1,4301 K304 quality wires are used for general purposes and do not have magnetic features.
K316 316 1,4401 Due to its high level of Nickel and Molybdenum it shows high resistance against corrosion. K316 quality wires which show high resistance against rusting can be used for springs that are utilized in acidic environments.
K316Ti 316Ti 1,4571 K316Ti shows higher resistance to corrosion than 316 quality due to the titanium included. These can be used for springs utilized in acidic environments.
K631 631 1,4568 The K631 has the highest property for heat, corrosion and spring compatibility. Heat annealing allows the higher surface tensile strength. It has the highest resistance against metal deformation and fatigue.
Physical Properties
                            Wire
                      Diameter
                            mm
                                                   Tensile Strength
                                                           (N/mm2)
K302 – K304     K316     K631
                        0.08-0.20 2150-2400 1650-1900 1950-2000
                        0.23-0.40 2050-2300 1600-1850 1930-2180
                        0.45-0.60 1950-2200 1600-1850 1850-2100
                        0.65-1.00 1850-2100 1530-1780 1800-2050
                        1.20-1.40 1750-2000 1450-1700 1700-1950
                        1.60-2.00 1650-1900 1400-1650 1600-1850
                        2.30-2.60 1550-1800 1320-1570 1500-1750
                        2.90-4.00 1450-1700 1230-1480 1400-1650
                        4.50-6.00 1350-1600 1100-1350 1300-1550
                        7.00-8.50 1300-1500 1080-1240 1200-1380
                       9.00-12.00 1250-1440 1050-1210

 

DIAMETER: 0.10 mm – 12 mm 

STANDARDS
 ABD: ASTM A.313Germany : DIN 17224 
 England : BS 2056Japan : JIS G 4314 
 
SURFACE PROPERTIES
Coated Surfaces:  
 S. Coated (S-CO) :Powder Coated0.20 – 10.00 mm
Ni Coated (Ni-CO):Nickel Coated + Powder Coated0.23 – 1.20 mm
 Cu Coated(Cu-CO):Copper Coated + Powder Coated0.80 – 1.20 mm
   
Shiny Surfaces:
Oil Drawn:                                                                                                                                                                                                                                0.10 – 0.80 mm
Ni Coated:Nickel coated, shiny, oil drawn0.20 – 0.80 mm
Cu Coated:Nickel coated, shiny, oil drawn0.15 – 0.80 mm
Mechanically polished: 0.80 – 6.00 mm
   
   

Stainless Steel Wire for Weaving and Braiding

Stainless steel wires can be used for various weaving methods and applications due to their mechanical properties, their aesthetic surface and the fact that it can conserve its shiny view for a long time, and does not deform at high temperatures. 

You can find bright annealed soft finished stainless steel wires for braiding at Kromtel. Being soft, helps the braiding process, it’s shiny and clean surface gives it more endurance against corrosion. 

K304 and K316 quality wires are the most commonly used wires for braiding. Especially K314 quality wires are resistant to repeating heating and cooling conditions. So we suggest them to be used for conveyor belts. 

As in industrial furnaces, the conveyor belts that will be used in high temperatures must be produced from K310 and K314 quality wires. K314 quality wires have the ability to work in high temperatures up to 1200°C. 

Stainless steel wires are used in chemical industry, oil industry, synthetic fiber production, paper production and the food sector. Also we can see that due to their resistance for high temperature they are used in conveyor belts.

APPROXIMATE CHEMICAL COMPOSITIONS

Kromtel Normu

C

Mn

P

S

Si

Cr

Ni

Mo

Ti

AISI

Werkstoff

K304

Max. 0.07

2

0.045

0.030

1

17,5-19,5

8-10,50

304

1,4301

K309

Max. 0.20

2

0.045

0.015

1,5-2,5

19-21

11-13

309

1,4828

K310

Max. 0.10

2

0.045

0.015

1,5

24-26

19-22

310

1,4845

K314

Max. 0.20

2

0.045

0.015

1.50-2.50

24-26

19-22

314

1,4841

K316

Max. 0.07

2

0.045

0.030

1

16,5-18,5

10-13

2.00-2.50

316

1,4401

K321

Max. 0.08

2

0.045

0.030

1

17-19

9-12

Max. 0,70

321

1,4541

K304L

Max. 0.03

2

0.045

0.030

1

17,5-19,5

8,0-10,5

304L

1,4307

K316L

Max. 0.03

2

0.045

0.030

1

16,5-18,5

10-13

2,0-2,5

316L

1,4404

K316Ti

Max. 0.08

2

0.045

0.030

1

16,5-18,5

10,5-13,5

2,0-2,5

5x%C-0,70

316Ti

1,4571

K430

Max. 0.08

1

0.040

0.030

Max. 1

16-18

430

1,4016

MECHANICAL PROPERTIES

Diameter

(mm)

K304-316

K304L- 316L

K310S – 314

TensileStrength

N/mm2

Elongation

%

TensileStrength

N/mm2

Elongation

%

Tensile Strength

N/mm2

Elongation

%

0,040-0,056

880 Max

20Min

880 Max

20Min

880 Max

20Min

0,057-0,09

880 Max

25Min

880 Max

25Min

880 Max

25Min

0,091-0,22

830 Max

30Min

830 Max

30Min

830 Max

30Min

0,221-0,37

830 Max

35Min

780 Max

35Min

780 Max

35Min

0,371-0,50

810 Max

40Min

760 Max

40Min

760 Max

40Min

0,501-0,60

780 Max

40Min

740 Max

40Min

740 Max

40Min

0,61-1,60

740 Max

40Min

690 Max

40Min

740 Max

40Min

1,61-7,00

690 Max

45Min

640 Max

45Min

690 Max

45Min

TOLERANCE AND OVALITY

DIAMETER

TOLERANCE

OVALITY

0,040-0,056

0,002

0,002 max

0,057-0,090

0,003

0,003 max

0,091-0,370

0,005-0,004

0,004 max

0,371-0,600

0,006-0,005

0,005 max

0,61-1,40

0,01

0,010 max

1,41-1,60

0,02

0,020 max

1,61-2,60

0,03

0,030 max

2,61-5,00

0,04

0,040 max

5,10-7,00

0,05

0,050 max

With the experience, responsibility, and work ethics we have gained in the industry since 1989, it will always be our unchanging passion to provide service to our esteemed customers at an increasing level of quality and satisfaction.

KROMTEL SANAYİ VE TİCARET ANONİM ŞİRKETİ

Center: Merve Mah. Uzungöl Cad. No:7 YENİDOĞAN

34791 Sancaktepe / İSTANBUL

Phone: +90 (216) 564 08 00

Fax: +90 (216) 561 53 23

Fax: +90 (216) 561 02 10 (Import&Export)

Fax: +90 (216) 561 01 12 (Accounting)

E-mail: info@kromtel.com.tr

Archives

Categories