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Cold - Drawn Spring Steel Wire65mn 60SI2MNA 55CRSI SAE9254V 50CRVA

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    Negotiable

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  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Henan

  • Validity to:

    Long-term effective

  • Last update:

    2017-06-25 09:59

  • Browse the number:

    236

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Company Profile
Henan Friend Metal Products Co.,Ltd
By certification [File Integrity]
Contact:

hnfuruide(Mr.)  

Email:

Telephone:

Phone:

Area:

Henan

Address:

Jingliu Road Industrial Park Xinxiang,Henan

Website: http://www.cnfuruide.com/ http://www.vintagechinahirehertford.com/com/hnfuruide/
Product details

Cold-drawn spring steel wire (carbon spring wire for important purposes)
Use                                                                                 
Suitable for the manufacture of high stress, the valve spring and other important uses without heat treatment or by the low temperature tempering spring
Classification and diameter range of steel wires                                                                    
Group E:0.08~6.00mm     Group F:0.08~6.00mm      Group G:1.00~6.00mm    
Commonly used grades and chemical composition                                          


Brand

Chemical composition,%

C

Mn

Si

no greater than

P

S

Cr

Ni

Cu

65Mn

0.62~0.69

0.70~1.20

0.17~0.37

0.025

0.020

0.10

0.15

0.20

70

0.67~0.74

0.30~0.80

0.17~0.37

0.025

0.020

0.10

0.15

0.20

T9A

0.85~0.93

≤0.40

≤0.35

0.025

0.020

0.10

0.12

0.20

T8MnA

0.80~0.89

0.40~0.60

≤0.35

0.025

0.020

0.10

0.12

0.20

Surface Quality
The surface of the steel wire shall be smooth and shall not be cracked, folded, pricked, rusted or otherwise damaged, but individual small draw marks and lubricating coatings with depth not exceeding one half of the diameter tolerance shall be allowed; the depth of the group G pull marks shall not exceed 0.02mm; wire diameter of not more than 2mm, the pull marks to allow the depth of not more than 0.01mm. For the steel wire for the aerospace industry, diameter less than 3.5mm, the surface pull marks allowed depth of not more than 0.01mm, diameter greater than 3.5mm shall not exceed 0.02mm.
Decarburization layer
G group wire decarburization test, the decarburization depth of not more than 1.0% of wire diameter
Mechanical properties


Diameter,mm

tensile strength,MPa

Diameter,mm

tensile strength,MPa

Group E

Group F

Group G

Group E

Group F

Group G

0.90

2060~2390

2390~2690

-

2.80

1630~1910

1720~1980

1570~1810

1.00

2020~2350

2350~2650

1850~2110

3.00

1610~1890

1690~1950

1570~1810

1.20

1920~2270

2270~2570

1820~2080

3.20

1560~1840

1670~1930

1570~1810

1.40

1870~2200

2200~2500

1780~2040

3.50

1520~1750

1620~1840

1470~1710

1.60

1830~2140

2160~2480

1750~2010

4.00

1480~1710

1570~1790

1470~1710

1.80

1800~2130

2060~2360

1700~1960

4.50

1410~1640

1500~1720

1470~1710

2.00

1760~2090

1970~2230

1670~1910

5.00

1380~1610

1480~1700

1420~1660

2.20

1720~2000

1870~2130

1620~1860

5.50

1330~1560

1440~1660

1400~1640

2.50

1680~1960

1770~2030

1620~1860

6.00

1320~1550

1420~1660

1350~1590

Note: The tensile strength of the intermediate size wire shall be in accordance with the requirements of the adjacent larger size; the tensile strength of the intermediate size wire may also be carried out in accordance with the requirements of the adjacent smaller size。

Delivery Method
The wire is delivered as a coil

Cold-drawn spring steel wire (alloy spring wire) 

Use                                                                                  
For the manufacture of high-stress mechanical spring steel wire and wear-resistant rod
Wire size and tolerances                                                    

                           Wire size

Allowable deviation

Wire size

Allowable deviation

1.00~3.00

±0.02

>6.00~10.0

±0.035

>3.00~6.00

±0.03

>10.0~14.00

±0.040

 The grade and chemical composition (%)                                                                

 Brand

C

Si

Mn

Cr

V

no greater than

P

S

Ni

Cu

50CrVA

0.46~0.54

0.17~0.37

0.50~0.80

0.80~1.10

0.10~0.20

0.030

0.35

0.25

55CrSiA

0.50~0.60

1.20~1.60

0.50~0.80

0.50~0.80

-

0.030

0.25

0.20

60Si2MnA

0.56~0.64

1.60~2.00

0.60~0.90

≤0.35

-

0.030

0.35

0.25

Mechanical properties 

Diameter greater than 5.0mm its strength is not greater than 1030MPa, Brinell hardness can also be used instead, less than 5.0mm of the tensile strength of the wire
The two sides negotiate
Surface Quality 

The surface of the steel wire shall be smooth and shall not have visible defects such as cracks, folds, delamination, staple and corrosion. It is permitted to have lubrication layer, heat treatment
Color and depth of not more than half of the individual tolerance of steel wire pull marks exist
Decarburization layer
The total depth of decarburized layer (ferrite + transition layer) of the steel wire shall conform to the requirements of Group I in the following table, and shall be indicated in the contract in the case of Group II delivery


Brand

Wire diameter

≤ 6.0

>6.0~10.0

>10.0

GroupⅠ

GroupⅡ

GroupⅠ

GroupⅡ

GroupⅠ

GroupⅡ

50CrVA

≤1.0%D

≤1.5%D

≤1.5%D

≤2.0%D

≤2.0%D

≤2.5%D

55CrSiA

≤1.5%D

≤2.0%D

≤2.0%D

≤2.0%D

≤2.5%D

≤2.5%D

60Si2MnA

≤1.5%D

≤2.0%D

≤2.0%D

≤2.0%D

≤2.5%D

≤2.5%D

delivery status
Cold-drawn state (WCD)  Heat treatment: Annealed (TN)  Normalized (TN)
Delivery Method
Steel wire to coil delivery

Carbon spring steel wire for important applications
CARBON SPRING STEEL WIRE FOR SIGNIFICANT USE
Suitable for the manufacture of high stress, the valve spring and other important uses without heat treatment or by the low temperature tempering spring
Classification and diameter range of steel wires
Group E:0.08~6.00mm
Group F:0.08~6.00mm
Group G:1.00~6.00mm    

Commonly used grades and chemical composition

 

Brand

chemical composition,%

C

Mn

Si

no greater than

P

S

Cr

Ni

Cu

65Mn

0.62~0.69

0.70~1.20

0.17~0.37

0.025

0.020

0.10

0.15

0.20

70

0.67~0.74

0.30~0.80

0.17~0.37

0.025

0.020

0.10

0.15

0.20

T9A

0.85~0.93

≤0.40

≤0.35

0.025

0.020

0.10

0.12

0.20

T8MnA

0.80~0.89

0.40~0.60

≤0.35

0.025

0.020

0.10

0.12

0.20

Torsion test requirements

Group distance:mm

Group E times not less than

Group F times not less than

Group G times not less than

≤2.00

25

18

20

>2.00~3.00

20

13

18

>3.00~4.00

16

10

15

>4.00~5.00

12

6

10

>5.00~6.00

8

4

6

Surface Quality
The surface of the steel wire shall be smooth and shall not be cracked, folded, pricked, rusted or otherwise damaged, but individual small draw marks and lubricating coatings with depth not exceeding one half of the diameter tolerance shall be allowed; the depth of the group G pull marks shall not exceed 0.02mm; wire diameter of not more than 2mm, the pull marks to allow the depth of not more than 0.01mm. For the steel wire for the aerospace industry, diameter less than 3.5mm, the surface pull marks allowed depth of not more than 0.01mm, diameter greater than 3.5mm shall not exceed 0.02mm.
Decarburization layer
G group wire decarburization test, the decarburization depth of not more than 1.0% of wire diameter
Carbon spring steel wire for important applications
CARBON SPRING STEEL WIRE FOR SIGNIFICANT USE
Suitable for the manufacture of high stress, the valve spring and other important uses without heat treatment or by the low temperature tempering spring
Mechanical properties

Diameter:mm

tensile strength,MPa

Diameter:mm

tensile strength,MPa

Group E

Group F

Group G

Group E

Group F

Group G

0.08

2330~2710

2710~3060

-

0.70

2120~2250

2500~2850

 

0.09

2320~2700

2700~3050

-

0.80

2110~2490

2490~2840

 

0.10

2310~2690

2690~3040

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