Steel Wire & Steel Cable

Cold Heading Quality Steel Wire Rod(CHQ Wire Rod)

    Wire diameter: 5.5mm-30mm

    Coil weight: 2,000kg

    Technical: Pickling&coating etc.

Cold heading quality Steel Wire Rod(CHQ Wire Rod)involves particular raw materials and chemistry to withstand swedging and heading and forming with great quality. It is suitable for fastener and cold heading applications such as bolts, nuts, screws, rivets, nails, etc.SMC keeps strict control of the surface and chemical composition of the wire to offer the best product.

If you want to know more about Cold heading quality Steel Wire Rod(CHQ Wire Rod) or Cold heading quality Steel Wire Rod(CHQ Wire Rod) price please feel free to contact us, we will reply you within 24 hours






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If you want to know more about our Cold Heading Quality Steel Wire Rod(CHQ Wire Rod) products or price please feel free to contact us,we will reply you within 24 hours


Process of Cold Heading Quality Steel Wire Rod(CHQ Wire Rod):

Pickling & coating 

The hot-rolled coil or wire rod passes through the pickling line, where hydrochloric acid solution is used to remove surface scale for clean surface finish before further processing and to form a lubrication film on the surface to reduce the coefficient of friction in the drawing and cold working process. The Gantry Crane moves between the tank during the process.

 

Intermediate drawing 

This process which produces half-finished products for the following stage improves the spherodized ratio during spheroidized annealing. The wire drawing machine composed of Supply Stand ,Drawing Drum, Take up stages produces half-finished coil products. 

 

Spheroidized annealing 

This annealing process with the purpose of obtaining spheroidized carbides facilitates the cold works. Once inserted in the heat treatment furnace, the process takes place in the order of controlled heating up to a given time, temperature and furnace atmosphere, along with maintenance at such temperature during a certain period and cooling controlled in accordance with the purpose intended. This process is controlled by automatic heat cycle. 


Pickling & coating 

The hot-rolled wire rod passes through the pickling line, where hydrochloric acid solution is used to remove surface scale for clean surface finish before further processing and to form a lubrication film on the surface to reduce the coefficient of friction in the drawing and cold working process. 

 

Skin pass 

The wire drawing machine produces half-finished coils where products meet the customers' needs in terms of the size and mechanical properties of products. 

 

Chemical composition of Cold Heading Quality Steel Wire Rod(CHQ Wire Rod):

Grade

C

Si

Mn

P

S

B

Cr

Cu

Ni

Als

10B33

0.33

0.23

0.82

0.017

0.005

0.0022

/

/

/

/

ML40Cr

0.4

0.22

0.68

0.015

0.005

/

0.97

0.02

0.02

/

SWRCH10A

0.1

0.05

0.41

0.013

0.007

/

0.04

0.02

0.01

0.044

SWRCH18A

0.17

0.03

0.77

0.016

0.006

/

0.04

0.02

0.01

0.039

 

Physical characteristics of Cold Heading Quality Steel Wire Rod (CHQ Wire Rod actual measurement):

Type

Tensile Strength (Mpa)

Elongation (%)

Reduction of Area (%)

HARDNESS

HRB

P+F

M.E.T

DEC(mm)

Inclusion

10B33

657

18.1

58.8

92.3

4

0

0.02

ML40Cr

/

/

/

87.9 

4

0

0.01

SWRCH10A

410

33

73

/

/

/

/

SWRCH18A

491

29

68

/

/

/

/

               


Parameter of Cold Heading Quality Steel Wire Rod(CHQ Wire Rod):

Application

Material

Manufacturing  process

Ball & Roller Bearing

SUJ2

PASAIP

Ball Housing

SWRCH45K

PSASAIP

Ball Stud

SCM415H-440

PASAIP

Boxer Wrench

SCM415H

PASAIP

Chain Pin

SCM415H-435

AIP

Cylinder Head Bolt

SCM435H

AIP/PASAIP

Electronic nut

SWRCH18A-22A

SAIP

Armature Shaft

SWRCH45K

R)AIP

Flange Bolt & Nut

SWRCH35K-45K

SAIP/ PSASAIP

SCM435

PASAIP

SWRCH10A

HD

Hex. Bolt

SCM435

AIP/PASAIP

SWRCH45K

SAF/SAIP

Hub Bolt & Nut

ML20MNTIB/SCM435

SAIP/ PASAIP

Lead Wire

SWRCH6A-8A

HD

Piston Pin

SCM415H-435H

PASAIP

Screw/Nut

SWRCH6A-10A

HD/SAIP

Start Motor Parts

10B21

SAIP 

SWRCH45K 

SAIP 

Tire Rod Pin

SWRCH45K

AIP/SAIP

 

Cold Heading Steel Wire Rod For Fastener:

   SWRCH35K cold heading steel wire rod for fastener 

Diameter

Tolerance

Weight per coil

Common grade

2-16MM

±0.03

1.9-2.1tons

sae1006 sae1008 sae1022

Length

in coils ,according to customers' requirements

International Standard

ISO 9001;2008

Standard

ASTM A 53 / BS 1387-1985

Material

Q195/Q215/Q235/Q345

Product  Category :

Metallurgy, Mineral & Energy

Technique:

hot rolled

Packing

In bundles or according to customers' requirements

Usage

1.For process, drawing or screw

2.For construction 

Main market:

Middle east, Africa, North and South America, East and West Europe, South and southeast Asia,Australia

Place of Origin

China

HS code:

7306309000

Productivity

50000Ton/Month

 

 

Packing of Cold Heading Quality Steel Wire Rod(CHQ Wire Rod):

Shanghai Metal Corporation Products are packed and labeled according to the regulations and customer's requests. Great care is taken to avoid any damage which might be caused during storage or transportation. In addition, clear labels are tagged on the outside of the packages for easy identification of the product I. D. and quality information.

1)SMC Standard

2)Customization

 

Service

To meet the entirety of our customers business needs, SMC offers its services as a “One-Stop Shop” for business services including Purchasing, Value-Added Manufacturing, Packaging/Labeling, and Delivery. SMC prides itself on achieving superior results and satisfying customer needs. In this, we earnestly strive to fulfill our role as trustworthy and reliable supplier of business services throughout the entire world. 

Our Value-Added Manufacturing Services not only save our customer time from having to out-source, but also spare them the cost of dealing with several disparate shops and deadlines. 

Features of Cold Heading Quality Steel Wire Rod(CHQ Wire Rod):

★High strength and hardness 

★High production efficiency 

★Low cost and strong fatigue resistance 

★Grain flow which improves the finished part grain structure 

 

Applications of Cold Heading Quality Steel Wire Rod(CHQ Wire Rod):                                    

• Automative:                                                                                                   

- Engine: spark plug shell,cylinder head bolt, piston rod, etc.

- Steering system (ball joint stud, tie rod pin, pinion, etc.)

- Wheel: hub bolt, nut, etc.

• Airplanes: High-tension bolts for wings

• Bearing : roller bearing,ball bearing,etc.

• Construction: fastener bolt, etc.

• Electronic parts: Material for Switch Relay

• Industrial machines & Electronic parts : fastener bolt, nut, screw, etc.

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