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CHQ wire

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CHQ wire

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CHQ Wire is a wire for Cold Heading or Cold Forging( a process method in a room temperature), one method of metal forming, A stric quality level is required for the internal (structure, internal defects) and external (dimensions and surface conditions) properties.
We have been supplying excellent quality of CHQ Wire domestic & oversea industries with the state-of-the-art facilities such as Hydrogen Bell Type furnace and automatic pickling & coating lines, etc.

Manufacturing Process

R Wire Rod / PC Pickling & Coating
LA Low Temperature Annealing
RA Regular Annealing / D Drawing
SA Spheroidized Annealing
SKP Skin in Pass / HD Hard Drawn
AIP Annealing In Process
SAPP Spheroidzed Annealed Pickled & Phosphate Coated
SAIP Spheroidized Annealed in Process
SAF Spheroidized Annealed at Finished size
PASAF Pre-Annealed SAF
PASAIP Pre-Annealed SAIP
 

Technical Data For Applications

Applications Material Wire Drawer-Process
     Wood Screw
     Machine Screw
     AISI 1008-1010R           H.D
     AIP
     Wood Screw(+)      AISI 1008-1010R      SAIP, AIP
     Machine Screw(+)      AISI 1010-1012Al
     AISI 1010R
     SAIP, AIP
     H.D
     Tapping Screw
     Drywall Screw
     AISI 1015-1016Al
     AISI 1018-1022Al
     SAIP
     AIP
     Tubular Rivet (Extruded)      AISI 1006Al
     AISI 1006R
     SAIP
     Tubular Rivet (Drilled)      AISI 1006Al
     AISI 1006R
     H.D
     Nut      AISI 1008-1015R
     AISI 1108-1110
     H.D
     AISI 1023-1025Al
     AISI 1023-1025Si
     SAIP
     AISI 1035-1045
     AISI 4135-4140
     AISI 5135-5140
     SAIP
     Steel Ball
     Ball Vearing
     AISI 1010-1020Al
     AISI 1010-1020Si
     SAIP
     AISI 1010-1015R
     AISI 5115-5120(Scr 21, .22)
     AISI 4115-4120(SCM 21, 22)
     AISI 52110(SUJ-2)
     H.D
     SAIP
     SAIP
     SAIP
     Socket Screw      AISI 4037-4042
     AISI 4135-4140(SCM 6, 7)
     AISI 8635-8640(SCM 6, 7)
     SAIP
     Ball Joint Stud      AISI 5115-5120(SCr 21, 22)
     AISI 4115-4120(SCM 21, 22)
     AISI 5135-5140(SCr 4)
     AISI 4135-4140(SCM 3, 4)
     AISI 8635-8630(SNCM 6, 7)
     SAIP
     Piston Pin      AISI 5015-5020
     AISI 5115-5120(SCr 21, 22)
     AISI 4115-4120(SCM 21, 22)
     SAIP
     Spark Plug      AISI 1008-1010Al
     AISI 1108-1110
     SAIP
     Special Application (Difficult Cold Forming)
     Special Application (Machine and Cold-forming)
     Low-Silicon or
     Aluminum Killed Steel
     Rimmed or Silicon Steel
     Free Cutting Steel
     SAIP
     AIP, H.D
     SAIP
 

Specification(JIS G 3539, BS 3111, DIN 1654)

Size Tolerance

Wire Size
(mm)
Diameter Tolerance(mm) Out or Roundness
(mm)
SAIP/HD SAF
Up to 3.00 +0, -0.02 +0.02, -0.02 below 0.010
3.01 - 6.00 +0, -0.03 +0.03, -0.03 below 0.015
6.01 - 10.00 +0, -0.04 +0.04, -0.04 below 0.020
10.01 - 16.00 +0, -0.05 +0.05, -0.05 below 0.025
Over 16.00 +0, -0.06 +0.06, -0.06 below 0.030

Mechanical Property

SAE or
AISI No.
Tensile Strength(kg/mm2)   SAE or
AISI No.
Tensile Strength(kg/mm2)
HD SAIP SAF HD SAIP SAF
1006-1008 Min. 35 Max. 45 Max. 40 1541 - Max.63 Max.60
1010-1012 Min. 38 Max. 50 Max. 46 4037 - Max.60 Max.56
1018 Min. 42 Max. 52 Max. 48 4118 - Max.55 Max.52
1022 Min. 45 Max. 54 Max. 50 4135 - Max.63 Max.60
1025 Min. 48 Max. 55 Max. 52 4140 - Max.65 Max.62
1035 - Max. 58 Max. 54 5135 - Max.63 Max.60
1045 - Max. 60 Max. 56 5140 - Max.65 Max.62
1522 - Max. 56 Max. 52 8640 - Max.65 Max.62

Decarburization

Wire Wize(mm) Free Ferrite(Dm-F)(mm) Free Feffite + Partial(Dm-T)(mm)
Up to 8.00 Max. 0.03 Max. 0.12
8.01 - 14.00 Max. 0.04 Max. 0.15
14.01 - 20.00 Max. 0.05 Max. 0.20
Over 20.00 Max. 0.06 Max. 0.25
 

Coil Weight and Dimension

Wire Size
(mm)
SAIP / HD SAF
Inside Diameter
(mm)
Outside Diameter
(mm)
Weight
(kgs)
Inside Diameter
(mm)
Outside Diameter
(mm)
Weight
(kgs)
Up to 5.00 400 - 500 700 - 800 Max. 200 450 - 550 1,000 - 1,100 Max. 2,000
500 - 600 800 - 900 Max. 600
5.01 - 8.00 550 - 650 900 - 1,000 Max. 700 450 - 550 1,050 - 1,150 Max. 2,000
650 - 750 1,050 - 1,150 Max. 1,000
8.01 - 12.00 650 - 750 1,050 - 1,150 Max. 1,000 500 - 600 1,100 - 1,200 Max. 2,000
Over 12.00 1,100 - 1,200 1,500 - 1,600 Max. 1,000 1,100 - 1,200 1,500 - 1,600 Max. 1,000