Wire Rod

POSCO India PC > Products > Wire Rod

POSCO’s wire rod products, renowned for their quality, are used in a number of areas, ranging from very basic industrial materials to specialized manufacturing facilities equipment. Through the use of cutting-edge facilities and automated systems, POSCO maintains consistent efforts in the development and manufacture of higher quality wire rod products.

Piano Wire Rods / Bearing Steel / Spring Steel / Welding Steel / Free-cutting Steel / Tire Cord Steel / Carbon Steel for Cold Heading & Forging, Low-alloyed Steel / Carbon Steel for Machine Structural Use.

Applications

icon-image
  • Galvanized steel wires
  • Nails and iron nets
  • Concrete utility poles & pipes
  • Automobile tire reinforcement
  • Balls, rollers and races of bearings
  • R-wire ropes
  • Precision springs
  • Bead wires and common PC steel wires
  • CO2 electrodes
  • Automobile components
  • Industrial machinery
  • Bolt, nut screw in ways of cold rolling
  • Forging and extrusion
  • Home electronics’ parts
  • High strength bolts, nuts, shafts
icon-image
  • Galvanized steel wires
  • Nails and iron nets
  • Concrete utility poles & pipes
  • Automobile tire reinforcement
  • Balls, rollers and races of bearings
  • R-wire ropes
  • Precision springs
  • Bead wires and common PC steel wires
  • CO2 electrodes
  • Automobile components
  • Industrial machinery
  • Bolt, nut screw in ways of cold rolling
  • Forging and extrusion
  • Home electronics’ parts
  • High strength bolts, nuts, shafts

Product Details

Available Dimensions

Wire rods are available in the form of coils. The cross-section of the rod ranges from 5.5 to 42 mm. Billets produced from a continuous casting system are rolled, cooled and coiled into the sizes required by the customers.

Plant Unit Availability
Wire Rod Plant 1
mm
5.5
6.5
7
–
8
8.5
9
–
10
–
11
12
–
13
–
14
–
–
–
–
inch
0.216
0.256
0.276
–
0.315
0.335
0.354
–
0.394
–
0.433
0.472
–
0.512
–
0.551
–
–
–
–
Wire Rod Plant 2
mm
8
9
10
–
11
12
13
–
14
–
15
16
–
17
–
18
–
19
–
20
inch
0.315
0.354
0.394
–
0.433
0.472
0.512
–
0.551
–
0.591
0.63
–
0.696
–
0.709
–
0.748
–
0.787
mm
21
22
23
–
24
25
26
–
27
–
28
30
–
32
–
34
–
38
–
42
inch
0.827
0.866
0.906
–
0.945
0.984
1.023
–
1.063
–
1.102
1.181
–
1.26
–
1.339
–
1.496
–
1.654
Wire Rod Plant 3
mm
5.5
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
12
12.5
13
13.5
14
14.5
15
15.5
16
inch
0.216
0.256
0.267
0.295
0.315
0.335
0.354
0.374
0.394
0.413
0.433
0.472
0.492
0.512
0.531
0.551
0.571
0.591
0.61
0.63
Wire Rod Plant 4
mm
5.5
6.5
7
7.5
8
8.5
9
10
11
12
13
14
15
16
17
18
19
20
21
22
inch
0.216
0.256
0.267
0.295
0.315
0.335
0.354
0.394
0.433
0.472
0.512
0.551
0.591
0.63
0.669
0.709
0.748
0.787
0.827
0.866

BIS Certified

Steel Product Posco Item (Item code) Steel Works Items BIS Grade Thickness Width Length
Mild Steel Wire Rod for General Engineering purposes
Wire Rod
Pohang
Wire Rod Coil
Grade 2, 3, 4, 5, 6, 7, 8, 6M, 7M & 8M
Ø 5.5 mm ~ 42 mm
–
Coil Form
High Carbon Steel Wire Rod
Wire Rod
Pohang
Wire Rod Coil
HC42, HC46, HC48, HC50, HC52, HC56, HC58, HC60, HC62, HC66, HC68, HC70, HC72, HC76, HC78, HC80 & HC82

Grade: A & B

Type of Decarburization: X & Y
Ø 5.5 mm ~ 25 mm
–
Coil Form
Steels for Cold Heading / Cold Extrusion Application Part 1 – Wrought Carbon and Low Alloy Steels
Wire Rod
Pohang
Wire Rod Coil
4C2, 10C4, 15C8, 20C8, 30C8, 45C8, 40Cr4, 37C15, 26C10BT & 21C10BT

Delivery Condition: As Rolled
Ø 5.0 mm ~ 42 mm
–
Coil Form

Product Specifications

Mild Steel Wire Rods

Designation Chemical Composition (%)
C
Si
Mn
P
S
Cu
POSFIS5AS
0.03 Max.
0.10 Max.
0.20 Max.
0.030 Max.
0.030 Max.
–
POSFIS5M1
0.02 Max.
0.07 Max.
0.10 ~ 0.40
0.030 Max.
0.030 Max.
–
POSFIS6M1
0.04 Max.
0.07 Max.
0.15 ~ 0.50
0.040 Max.
0.040 Max.
–
POSFIS6B
0.05 Max.
0.07 Max.
0.60 Max.
0.040 Max.
0.040 Max.
–

*POSFIS: POSCO Fine Drawing Steel

Piano Wire Rods for Micro Cables

Designation Chemical Composition (%)
C
Si
Mn
P
S
Cu
Cr
POSMICRO62
0.58 ~ 0.68
0.10 ~ 0.30
0.35 ~ 0.65
0.020 Max.
0.020 Max.
0.20 Max.
0.20 Max.

*POSMICRO: POSCO Micro

Wire Rods for Cables

Designation Chemical Composition (%)
C
Si
Mn
P
S
Cu
Cr
POSCABLE82
0.80 ~ 0.85
0.80 ~ 1.00
0.60 ~ 0.90
0.020 Max.
0.020 Max.
0.20 Max.
–
POSCABLE86
0.82 ~ 0.89
0.80 ~ 1.00
0.60 ~ 0.90
0.020 Max.
0.020 Max.
0.020 Max.
–
POSCABLE90
0.88 ~ 0.94
1.10 ~ 1.40
0.30 ~ 0.60
0.020 Max.
0.020 Max.
0.020 Max.
0.15 ~ 0.45
POSCABLE92
0.88 ~ 0.96
1.10 ~ 1.50
0.30 ~ 0.70
0.020 Max.
0.020 Max.
0.30 Max.
0.15 ~ 0.45
POSCABLE98
0.94 ~ 1.00
1.10 ~ 1.50
0.30 ~ 0.70
0.025 Max.
0.025 Max.
0.20 Max.
0.50 ~ 0.95
POSFLEX35
0.32 ~ 0.38
0.10 ~ 0.35
0.60 ~ 0.85
0.025 Max.
0.025 Max.
0.20 Max.
–
POSFLEX62
0.60 ~ 0.65
0.12 ~ 0.32
0.60 ~ 0.90
0.025 Max.
0.025 Max.
0.20 Max.
–
POSFLEX72
0.70 ~ 0.75
0.15 ~ 0.35
0.60 ~ 0.90
0.025 Max.
0.025 Max.
0.20 Max.
–
POSNEPTUNE3
0.94 ~ 1.00
1.10 ~ 1.50
0.30 ~ 0.70
0.025 Max.
0.025 Max.
0.20 Max.
0.50 ~ 0.95

*POSCABLE: POSCO Wire Rod for Cable
*POSFLEX: POSCO Flexible Pipe
*POSNEPTUNE: POSCO Neptune Wire Rod

Wire Rods for Tire Cord

Designation Chemical Composition (%)
C
Si
Mn
P
S
Cr
POSCORD60M
0.56 ~ 0.62
0.10 ~ 0.30
0.40 ~ 0.60
0.03 Max.
0.03 Max.
–
POSCORD70S
0.67 ~ 0.75
0.10 ~ 0.30
0.40 ~ 0.60
0.03 Max.
0.03 Max.
–
POSCORD70M
0.67 ~ 0.75
0.10 ~ 0.30
0.40 ~ 0.60
0.03 Max.
0.03 Max.
–
POSCORD70D
0.67 ~ 0.75
0.10 ~ 0.30
0.40 ~ 0.60
0.03 Max.
0.03 Max.
–
POSCORD80S
0.78 ~ 0.85
0.10 ~ 0.30
0.40 ~ 0.60
0.03 Max.
0.03 Max.
–
POSCORD80M
0.78 ~ 0.85
0.10 ~ 0.30
0.40 ~ 0.60
0.03 Max.
0.03 Max.
–
POSCORD80D
0.78 ~ 0.85
0.10 ~ 0.30
0.40 ~ 0.60
0.03 Max.
0.03 Max.
–
POSCORD86
0.83 ~ 0.89
0.10 ~ 0.30
0.40 ~ 0.60
0.03 Max.
0.03 Max.
–
POSCORD86CR
0.83 ~ 0.89
0.10 ~ 0.30
0.40 ~ 0.60
0.03 Max.
0.03 Max.
0.10 ~ 0.30
POSCORD92CR
0.88 ~ 0.95
0.10 ~ 0.30
0.20 ~ 0.40
0.03 Max.
0.03 Max.
0.10 ~ 0.30
POSCORD92SI
0.88 ~ 0.95
0.30 ~ 0.60
0.20 ~ 0.40
0.03 Max.
0.03 Max.
0.10 ~ 0.30

*POSCORD: POSCO Tire Cord Steel 

High Tensile Steel Wire Rods

Designation Chemical Composition (%)
C
Si
Mn
P
S
Cu
B
Ti
Class 1
PSPC22
0.20 ~ 0.25
0.10 ~ 0.40
0.70 ~ 1.00
0.030 Max.
0.025 Max.
–
50ppm Max.
–
PSPC30B
0.27 ~ 0.32
0.15 ~ 0.35
0.60 ~ 0.90
0.030 Max.
0.035 Max.
0.25 Max.
5ppm Min.
–
PSPC32B
0.29 ~ 0.34
0.15 ~ 0.35
0.60 ~ 0.90
0.030 Max.
0.035 Max.
0.25 Max.
5ppm Min.
–
PSPC35B
0.32 ~ 0.38
0.15 ~ 0.35
0.60 ~ 0.90
0.030 Max.
0.035 Max.
0.25 Max.
5ppm Min.
–
Class 2
PSPC30SI
0.27 ~ 0.32
1.60 ~ 1.90
0.60 ~ 0.90
0.035 Max.
0.030 Max.
0.20 Max.
–
–
PSPC32SI
0.29 ~ 0.34
1.60 ~ 1.90
0.60 ~ 0.90
0.035 Max.
0.030 Max.
0.20 Max.
–
–
PSPC35SI
0.32 ~ 0.38
1.60 ~ 1.90
0.60 ~ 0.90
0.035 Max.
0.030 Max.
0.20 Max.
–
–
Class 3
PSPC32SIB
0.29 ~ 0.36
0.50 ~ 2.00
0.55 ~ 0.95
0.030 Max.
0.025 Max.
0.25 Max.
5ppm Min.
0.01 ~ 0.06
PSPC32SIBM
0.29 ~ 0.36
0.50 ~ 2.00
0.80 ~ 1.20
0.030 Max.
0.025 Max.
0.25 Max.
5ppm Min.
0.01 ~ 0.05
PSPC35SIB
0.32 ~ 0.38
0.50 ~ 2.00
0.60 ~ 0.90
0.030 Max.
0.025 Max.
0.25 Max.
5ppm Min.
0.01 ~ 0.06

*PSPC: POSCO Super Wire Rod Prestressed Concrete

Wire Rods for Welding

Designation Chemical Composition (%)
C
Si
Mn
P
S
Cu
B
Ti
Ti+Zr
POSWELD1A
0.15 Max.
0.45 ~ 0.75
0.90 ~ 1.40
0.025 Max.
0.030 Max.
0.30 Max.
–
–
–
POSWELD1B
0.15 Max.
0.40 ~ 1.00
1.00 ~ 1.60
0.030 Max.
0.030 Max.
0.30 Max.
0.30 Max.
0.30 Max.
0.15 Max.
POSWELD1C
0.07 Max.
0.40 ~ 0.70
0.90 ~ 1.40
0.025 Max.
0.030 Max.
0.30 Max.
0.30 Max.
0.30 Max.
0.30 Max.
POSWELD1CM
0.05 ~ 0.15
0.30 ~ 0.80
0.60 ~ 1.50
0.025 Max.
0.025 Max.
0.20 Max.
1.00 ~ 1.50
0.40 ~ 0.65
–
POSWELD2A
0.06 ~ 0.15
0.80 ~ 1.15
1.40 ~ 1.85
0.025 Max.
0.030 Max.
0.30 Max.
0.30 Max.
0.30 Max.
–
POSWELD2B
0.02 ~ 0.10
0.55 ~ 1.10
1.40 ~ 1.90
0.025 Max.
0.030 Max.
0.30 Max.
0.30 Max.
0.30 Max.
0.30 Max.
POSWELD2J
0.10 Max.
0.55 ~ 1.10
1.25 ~ 1.60
0.030 Max.
0.030 Max.
0.30 Max.
0.30 Max.
0.30 Max.
–
POSWELD2S
0.08 Max.
0.55 ~ 1.10
1.25 ~ 1.90
0.030 Max.
0.01 ~ 0.03
0.30 Max.
0.30 Max.
0.30 Max.
–
POSWELD4B
0.15 Max.
0.55 ~ 1.10
1.70 ~ 2.20
0.030 Max.
0.030 Max.
0.30 Max.
0.30 Max.
0.30 Max.
0.30 Max.
POSWELD4D
0.15 Max.
0.50 ~ 1.10
1.60 ~ 2.10
0.025 Max.
0.025 Max.
0.30 Max.
0.30 Max.
0.40 Max.
0.30 Max.
POSWELD23
0.05 ~ 0.15
0.15 ~ 0.35
0.80 ~ 1.25
0.030 Max.
0.030 Max.
0.35 Max.
0.30 Max.
0.30 Max.
–
POSWELD41
0.15 Max.
0.05 Max.
1.80 ~ 2.20
0.030 Max.
0.030 Max.
0.30 Max.
0.30 Max.
0.30 Max.
–
POSWELD50
0.15 Max.
0.05 Max.
1.80 ~ 2.20
0.030 Max.
0.030 Max.
0.15 Max.
0.15 Max.
0.15 Max.
–
POSWELD60
0.07 ~ 0.17
0.20 Max.
1.65 ~ 2.20
0.025 Max.
0.030 Max.
0.30 Max.
0.30 Max.
0.45 ~ 0.65
–

*POSWELD: POSCO Wire Rod for Welding

Bearing Steel

Designation Chemical Composition (%)
C
Si
Mn
P
S
Cr
Mo
Others
POS55CR
0.52 ~ 0.60
0.15 ~ 0.35
0.60 ~ 0.95
0.030 Max.
0.008 Max.
0.10 ~ 0.30
0.10 Max.
Cu 0.30 Max.
Ni 0.20 Max.
POSWIND100
0.93 ~ 1.05
0.50 ~ 0.70
1.00 ~ 1.20
0.025 Max.
0.008 Max.
1.40 ~ 1.65
0.10 Max.
Cu 0.25 Max.
Ni 0.30 Max.

*POSWIND: POSCO Bearing Steel for Wind

Spring Steel

Designation Chemical Composition (%)
C
Si
Mn
P
S
Cr
Others
POSHIS110
0.56 ~ 0.64
0.50 ~ 1.00
0.50 ~ 0.70
0.025 Max.
0.025 Max.
0.20 ~ 0.60
–
POSHIS120L
0.46 ~ 0.60
1.20 ~ 1.70
0.50 ~ 0.80
0.025 Max.
0.025 Max.
0.50 ~ 0.80
Nb, V
POSHIS120S
0.50 ~ 0.56
1.20 ~ 1.60
0.50 ~ 0.90
0.020 Max.
0.020 Max.
0.50 ~ 0.80
Cu, Ni, Ti, V
POSHIS125
0.51 ~ 0.57
1.40 ~ 1.70
0.55 ~ 0.80
0.017 Max.
0.017 Max.
0.60 ~ 0.80
Cu, Nb, B, Ni, Ti, V
POSHIS125RC
0.46 ~ 0.54
1.30 ~ 1.70
0.30 ~ 0.60
0.017 Max.
0.017 Max.
0.20 ~ 0.40
Cu, Nb, Ni, Mo, V

*POSHIS: POSCO High Strength Spring Steel

Wire Rods for Oil Tempered Wire

Designation Chemical Composition (%)
C
Si
Mn
P
S
Cu
POT62C
0.60 ~ 0.65
0.15 ~ 0.30
0.85 ~ 1.15
~0.020
~0.020
~0.20
POT67C
0.65 ~ 0.70
0.15 ~ 0.30
0.85 ~ 1.15
~0.020
~0.020
~0.20
POT70C
0.66 ~ 0.71
0.15 ~ 0.30
0.80 ~ 1.10
~0.020
~0.020
~0.15

Free Cutting Steel

Designation Chemical Composition (%)
C
Si
Mn
P
S
POSGRAM70
0.67 ~ 0.73
2.20 ~ 2.50
0.15 ~ 0.35
0.035 Max.
0.040 Max.

*POSGRAM: POSCO Graphite Steel for Machinability

Carbon Steel for CHQ

Designation Chemical Composition (%)
C
Si
Mn
P
S
S-Al
POSCH6ASP
0.08 Max.
0.07 Max.
0.25 ~ 0.45
0.040 Max.
0.050 Max.
0.02 Min.

*POSCH6ASP: POSCO Cold Heading, 600 Mpa, Al Killed, Spark Plug Application

Soft Magnetic Iron Bars

Designation Chemical Composition (%)
C
Si
Mn
P
S
JIS-SUYB1
~0.01
~0.05
0.20 ~ 0.30
~0.020
~0.015

Weather Resistant Steel

Designation Chemical Composition (%)
C
Si
Mn
P
S
S-Al
Cu
Ni
Cr
POSTEN30W
0.33 ~ 0.38
0.15 ~ 0.35
0.65 ~ 0.95
0.030 Max.
0.030 Max.
0.01 ~ 0.06
0.20 ~ 0.50
0.20 ~ 0.50
0.60 ~ 0.90

*POSTEN30W: POSCO Tensile, Target Carbon Content, Weathering

Non Heat Treatment Steel

Designation Chemical Composition (%)
C
Si
Mn
P
S
S-Al
Ni
Cr
Ti
V
Others
POSMA45R
0.43 ~ 0.47
0.20 ~ 0.40
1.10 ~ 1.50
0.030 Max.
0.03 ~ 0.06
0.01 ~ 0.07
0.20 Max.
0.15 Max.
0.03 Max.
0.11 Max.
–
POSMA45RM
0.43 ~ 0.47
0.15 ~ 0.35
1.10 ~ 1.40
0.030 Max.
0.03 ~ 0.07
0.01 ~ 0.07
0.20 Max.
0.25 Max.
0.04 Max.
0.07 Max.
–
POSMA45RS
0.43 ~ 0.47
0.15 ~ 0.35
1.10 ~ 1.40
0.030 Max.
0.03 ~ 0.07
0.01 ~ 0.07
0.20 Max.
0.25 Max.
0.04 Max.
0.07 Max.
–
POSNH4
0.02 ~ 0.07
0.20 Max.
0.30 ~ 0.60
0.030 Max.
0.030 Max.
0.01 ~ 0.07
0.10 Max.
0.10 Max.
–
–
–
POSNH6
0.06 ~ 0.12
0.10 ~ 0.30
0.50 ~ 0.80
0.030 Max.
0.030 Max.
–
0.10 Max.
0.30 ~ 0.50
–
–
–
POSNH9S
0.23 ~ 0.29
0.10 ~ 0.30
1.30 ~ 1.60
0.030 Max.
0.030 Max.
0.01 ~ 0.07
0.10 Max.
0.10 ~ 0.30
–
0.05 ~ 0.20
Nb:0.005 ~ 0.02

*POSMA: POSCO Micro Alloyed
*POSNH: POSCO Non Heat Treatment

Alloy Steel for CHQ

Designation Chemical Composition (%)
C
Si
Mn
P
S
B
Cr
Ti
POSA1021B
0.18 ~ 0.23
0.30 ~ 0.50
0.50 ~ 0.80
0.035 Max.
0.040 Max.
5ppm Min.
0.30 Max.
0.07 Max.
POSA1022B
0.18 ~ 0.23
0.15 ~ 0.30
0.70 ~ 1.00
0.020 Max.
0.020 Max.
5ppm Min.
0.25 Max.
0.01 ~ 0.05
POSA1038B
0.34 ~ 0.42
0.10 ~ 0.30
0.60 ~ 1.20
0.030 Max.
0.040 Max.
5ppm Min.
0.35 Max.
–
POSA15B24H
0.22 ~ 0.28
0.22 ~ 0.28
0.90 ~ 1.20
0.025 Max.
0.025 Max.
5 ~ 30ppm
0.10 ~ 0.20
0.01 ~ 0.03
POSA5120BH
0.17 ~ 0.22
0.15 ~ 0.35
0.70 ~ 0.90
0.035 Max.
0.040 Max.
10 ~ 40ppm
0.70 ~ 0.90
0.02 ~ 0.05

*POSA: POSCO Automobile

Notes: The product standards are for reference. Please be sure to confirm the recent standards when making orders with Technical Services.

Customer Enquiry

Please connect with POSCO with your inquiries at the nearest Processing Center

Pune
Processing Center

Hyderabad Processing Center

Delhi Processing Center

Ahmedabad Processing Center

Chennai Processing Center