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Wire Rod

USI mainly provide flat steel (HRC, HR Plate, CRC, GI, GL,PPGI, etc.), long steel (billet, deformed bar, wire rod, round bar, pipe, etc.) and special steel (high- tensile steel & stainless steel) to end consumers、distributors & trading houses in the world.

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Wire Rod

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Product Description

Wire Rod
Produced from billets at the rolling mill, wire rod is the basis of all steel wire, rope and fencing products. The most important characteristic in determining wire rod’s end use is its drawability. Common low carbon wire rod is used for nails, small shaped products, barbed wires, various wire nettings, steel chains, and other applications. High Carbon wire rod uses include steel tire cords for automobiles, conveyor belts, and pressure hoses. Other applications include bolts, nuts, and machine parts, as well as compression, tension and torsion springs.

ASTM A510M Low Carbon Steel Wire Rod

Grade	Chemical Composition Limits,%
Grade	Carbon	Manganese	Phosphorus	Sulfur
SAE1005	≤0.06	≤0.35	≤0.040	≤0.050
SAE1006	≤0.08	0.25-0.45	≤0.040	≤0.050
SAE1008	≤0.10	0.30-0.50	≤0.040	≤0.050
SAE1010	0.08-0.13	0.30-0.60	≤0.040	≤0.050
SAE1011	0.08-0.13	0.60-0.90	≤0.040	≤0.050
SAE1012	0.10-0.15	0.30-0.60	≤0.040	≤0.050
SAE1013	0.11-0.16	0.50-0.80	≤0.040	≤0.050
SAE1015	0.13-0.18	0.30-0.60	≤0.040	≤0.050
SAE1016	0.13-0.18	0.60-0.90	≤0.040	≤0.050
SAE1017	0.15-0.20	0.30-0.60	≤0.040	≤0.050
SAE1018	0.15-0.20	0.60-0.90	≤0.040	≤0.050
SAE1019	0.15-0.20	0.70-1.00	≤0.040	≤0.050
SAE1020	0.18-0.23	0.30-0.60	≤0.040	≤0.050
SAE1021	0.18-0.23	0.60-0.90	≤0.040	≤0.050
SAE1022	0.18-0.23	0.70-1.00	≤0.040	≤0.050
SAE1023	0.20-0.25	0.30-0.60	≤0.040	≤0.050
SAE1025	0.22-0.28	0.30-0.60	≤0.040	≤0.050
SAE1026	0.22-0.28	0.60-0.90	≤0.040	≤0.050
SAE1029	0.25-0.31	0.60-0.90	≤0.040	≤0.050
SAE1030	0.28-0.34	0.60-0.90	≤0.040	≤0.050
SAE1034	0.32-0.38	0.50-0.80	≤0.040	≤0.050
SAE1035	0.32-0.38	0.60-0.90	≤0.040	≤0.050
SAE1037	0.32-0.38	0.70-1.00	≤0.040	≤0.050
SAE1038	0.35-0.42	0.60-0.90	≤0.040	≤0.050
SAE1039	0.37-0.44	0.70-1.00	≤0.040	≤0.050
SAE1040	0.37-0.44	0.60-0.90	≤0.040	≤0.050
SAE1042	0.40-0.47	0.60-0.90	≤0.040	≤0.050
SAE1043	0.40-0.47	0.70-1.00	≤0.040	≤0.050
SAE1044	0.43-0.50	0.30-0.60	≤0.040	≤0.050
SAE1045	0.43-0.50	0.60-0.90	≤0.040	≤0.050
SAE1046	0.43-0.50	0.70-1.00	≤0.040	≤0.050
SAE1049	0.46-0.53	0.60-0.90	≤0.040	≤0.050
SAE1050	0.48-0.55	0.60-0.90	≤0.040	≤0.050
SAE1053	0.48-0.55	0.70-1.00	≤0.040	≤0.050
SAE1055	0.50-0.60	0.60-0.90	≤0.040	≤0.050
SAE1059	0.55-0.65	0.50-0.80	≤0.040	≤0.050
SAE1060	0.55-0.65	0.60-0.90	≤0.040	≤0.050
SAE1064	0.60-0.70	0.50-0.80	≤0.040	≤0.050
SAE1065	0.60-0.70	0.60-0.90	≤0.040	≤0.050
SAE1069	0.65-0.75	0.40-0.70	≤0.040	≤0.050
SAE1070	0.65-0.75	0.60-0.90	≤0.040	≤0.050
SAE1074	0.70-0.80	0.50-0.80	≤0.040	≤0.050
SAE1075	0.70-0.80	0.40-0.70	≤0.040	≤0.050
SAE1078	0.72-0.85	0.30-0.60	≤0.040	≤0.050
SAE1080	0.75-0.88	0.60-0.90	≤0.040	≤0.050
SAE1084	0.80-0.93	0.60-0.90	≤0.040	≤0.050
SAE1085	0.80-0.93	0.70-1.00	≤0.040	≤0.050
SAE1086	0.80-0.93	0.30-0.60	≤0.040	≤0.050
SAE1090	0.85-0.98	0.60-0.90	≤0.040	≤0.050
SAE1095	0.90-1.03	0.30-0.50	≤0.040	≤0.050

JIS G3505 Low Carbon Steel Wire Rod

Grade	Chemical Composition Limits,%
Grade	Carbon	Manganese	Phosphorus	Sulfur
SWRM6	≤0.08	≤0.60	≤0.040	≤0.040
SWRM8	≤0.10	0.30-0.60	≤0.040	≤0.040
SWRM10	0.08-0.13	0.30-0.60	≤0.040	≤0.040
SWRM12	0.10-0.15	0.30-0.60	≤0.040	≤0.040
SWRM15	0.13-0.18	0.30-0.60	≤0.040	≤0.040
SWRM17	0.15-0.20	0.30-0.60	≤0.040	≤0.040
SWRM20	0.18-0.23	0.30-0.60	≤0.040	≤0.040
SWRM22	0.20-0.25	0.30-0.60	≤0.040	≤0.040

JIS G3506 High Carbon Steel Wire Rod

Grade	Chemical Composition Limits,%
Grade	Carbon	Silicon	Manganese	Phosphorus	Sulfur
SWRH27	0.24-0.31	0.15-0.35	0.30-0.60	≤0.030	≤0.030
SWRH32	0.29-0.36	0.15-0.35	0.30-0.60	≤0.030	≤0.030
SWRH37	0.34-0.41	0.15-0.35	0.30-0.60	≤0.030	≤0.030
SWRH42A	0.39-0.46	0.15-0.35	0.30-0.60	≤0.030	≤0.030
SWRH42B	0.39-0.46	0.15-0.35	0.60-0.90	≤0.030	≤0.030
SWRH47A	0.44-0.51	0.15-0.35	0.30-0.60	≤0.030	≤0.030
SWRH47B	0.44-0.51	0.15-0.35	0.60-0.90	≤0.030	≤0.030
SWRH52A	0.49-0.56	0.15-0.35	0.30-0.60	≤0.030	≤0.030
SWRH52B	0.49-0.56	0.15-0.35	0.60-0.90	≤0.030	≤0.030
SWRH57A	0.54-0.61	0.15-0.35	0.30-0.60	≤0.030	≤0.030
SWRH57B	0.54-0.61	0.15-0.35	0.60-0.90	≤0.030	≤0.030
SWRH62A	0.59-0.66	0.15-0.35	0.30-0.60	≤0.030	≤0.030
SWRH62B	0.59-0.66	0.15-0.35	0.60-0.90	≤0.030	≤0.030
SWRH67A	0.64-0.71	0.15-0.35	0.30-0.60	≤0.030	≤0.030
SWRH67B	0.64-0.71	0.15-0.35	0.60-0.90	≤0.030	≤0.030
SWRH72A	0.69-0.76	0.15-0.35	0.30-0.60	≤0.030	≤0.030
SWRH72B	0.69-0.76	0.15-0.35	0.60-0.90	≤0.030	≤0.030
SWRH77A	0.74-0.81	0.15-0.35	0.30-0.60	≤0.030	≤0.030
SWRH77B	0.74-0.81	0.15-0.35	0.60-0.90	≤0.030	≤0.030
SWRH82A	0.79-0.86	0.15-0.35	0.30-0.60	≤0.030	≤0.030
SWRH82B	0.79-0.86	0.15-0.35	0.60-0.90	≤0.030	≤0.030

JIS G3507 Carbon Steel Wire Rod for Cold Heading

Grade	Chemical Composition Limits,%
Grade	Carbon	Silicon	Manganese	Phosphorus	Sulfur	Aluminium
SWRCH6R	≤0.08	-	≤0.60	≤0.040	≤0.040	-
SWRCH8R	≤0.10	-	≤0.60	≤0.040	≤0.040	-
SWRCH10R	0.08-0.13	-	0.30-0.60	≤0.040	≤0.040	-
SWRCH12R	0.10-0.15	-	0.30-0.60	≤0.040	≤0.040	-
SWRCH15R	0.13-0.18	-	0.30-0.60	≤0.040	≤0.040	-
SWRCH17R	0.15-0.20	-	0.30-0.60	≤0.040	≤0.040	-
SWRCH6A	≤0.08	≤0.10	≤0.60	≤0.030	≤0.035	≥0.02
SWRCH8A	≤0.10	≤0.10	≤0.60	≤0.030	≤0.035	≥0.02
SWRCH10A	0.08-0.13	≤0.10	0.30-0.60	≤0.030	≤0.035	≥0.02
SWRCH12A	0.10-0.15	≤0.10	0.30-0.60	≤0.030	≤0.035	≥0.02
SWRCH15A	0.13-0.18	≤0.10	0.30-0.60	≤0.030	≤0.035	≥0.02
SWRCH16A	0.13-0.18	≤0.10	0.60-0.90	≤0.030	≤0.035	≥0.02
SWRCH18A	0.15-0.20	≤0.10	0.60-0.90	≤0.030	≤0.035	≥0.02
SWRCH19A	0.15-0.20	≤0.10	0.70-1.00	≤0.030	≤0.035	≥0.02
SWRCH20A	0.18-0.23	≤0.10	0.30-0.60	≤0.030	≤0.035	≥0.02
SWRCH22A	0.18-0.23	≤0.10	0.70-1.00	≤0.030	≤0.035	≥0.02
SWRCH25A	0.22-0.28	≤0.10	0.30-0.60	≤0.030	≤0.035	≥0.02
SWRCH10K	0.08-0.13	0.10-0.35	0.30-0.60	≤0.030	≤0.035	-
SWRCH12K	0.10-0.15	0.10-0.35	0.30-0.60	≤0.030	≤0.035	-
SWRCH15K	0.13-0.18	0.10-0.35	0.30-0.60	≤0.030	≤0.035	-
SWRCH16K	0.13-0.18	0.10-0.35	0.60-0.90	≤0.030	≤0.035	-
SWRCH17K	0.15-0.20	0.10-0.35	0.30-0.60	≤0.030	≤0.035	-
SWRCH18K	0.15-0.20	0.10-0.35	0.60-0.90	≤0.030	≤0.035	-
SWRCH20K	0.18-0.23	0.10-0.35	0.30-0.60	≤0.030	≤0.035	-
SWRCH22K	0.18-0.23	0.10-0.35	0.70-1.00	≤0.030	≤0.035	-
SWRCH24K	0.19-0.25	0.10-0.35	1.35-1.65	≤0.030	≤0.035	-
SWRCH25K	0.22-0.28	0.10-0.35	0.30-0.60	≤0.030	≤0.035	-
SWRCH27K	0.22-0.29	0.10-0.35	1.20-1.50	≤0.030	≤0.035	-
SWRCH30K	0.27-0.33	0.10-0.35	0.60-0.90	≤0.030	≤0.035	-
SWRCH33K	0.30-0.36	0.10-0.35	0.60-0.90	≤0.030	≤0.035	-
SWRCH35K	0.32-0.38	0.10-0.35	0.60-0.90	≤0.030	≤0.035	-
SWRCH38K	0.35-0.41	0.10-0.35	0.60-0.90	≤0.030	≤0.035	-
SWRCH40K	0.37-0.43	0.10-0.35	0.60-0.90	≤0.030	≤0.035	-
SWRCH41K	0.36-0.44	0.10-0.35	1.35-1.65	≤0.030	≤0.035	-
SWRCH43K	0.40-0.46	0.10-0.35	0.60-0.90	≤0.030	≤0.035	-
SWRCH45K	0.42-0.48	0.10-0.35	0.60-0.90	≤0.030	≤0.035	-
SWRCH48K	0.45-0.51	0.10-0.35	0.60-0.90	≤0.030	≤0.035	-
SWRCH50K	0.47-0.53	0.10-0.35	0.60-0.90	≤0.030	≤0.035	-

Boron Steel Wire Rod for Cold Heading

Grade	Chemical Composition Limits,%
	Carbon	Silicon	Manganese	Phosphorus	Sulfur	Boron
10B20	0.18-0.23	0.10 Max	0.30-0.60	0.025 Max	0.025 Max	0.0008 Min
10B21			0.70-1.00
10B22
10B29	0.26-0.30	0.15-0.35
10B30	0.28-0.34
10B33	0.32-0.36
10B38	0.35-0.42

JIS G3503 Wire Rod for Core Wire of Covered Electrodes

Grade	Chemical Composition Limits,%
Grade	Carbon	Silicon	Manganese	Phosphorus	Sulfur	Copper
SWRY11	≤0.09	≤0.03	0.35-0.65	≤0.020	≤0.023	≤0.20
SWRY21	0.10-0.15	≤0.03	0.35-0.65	≤0.020	≤0.023	≤0.20
ER70S-6	0.06-0.15	0.80-1.15	1.40-1.85	≤0.025	≤0.035

Q/BQB 515 Wire Rod for Prestressed Steel Bars

Grade	Chemical Composition Limits,%
Grade	Carbon	Silicon	Manganese	Phosphorus	Sulfur	Copper
B30MnB	0.27-0.35	0.20-0. 0	0.70-1.00	≤0.030	≤0.030	≤0.20
B30Si2Mn	0.27-0.35	1.55 -1.85	0.65-0.95	≤0.030	≤0.030	≤0.20
B30MnSi	0.2 -0.33	0.60-0.90	0. 0-1.30	≤0.030	≤0.030	≤0.20

Q/BQB516 Spring Steel Wire Rod

Grade	Chemical Composition Limits,%
Grade	Carbon	Silicon	Manganese	Phosphorus	Sulfur	Others
65Mn	0.62-0.70	0.17-0.37	0.90-1.20	≤0.035	≤0.035	Cr:≤0.25，Ni:≤0.25，Cu:≤0.25
60Si2MnA	0.56-0.64	1. 0-2.00	0. 60-0. 90	≤0.030	≤0.030	Cr:≤0.35 ，Ni:≤0.35 ，Cu:≤0.25
B55SiCr	0.51-0.59	1. 40-1.60	0.60-0.80	≤0.025	≤0.025	Cr:0.60-0.80 Ni:≤0.25，Cu:≤0.20
60Si2CrA	0.56-0.64	1.40-1.80	0.40-0.70	≤0.020	≤0.020	Cr:0.70-1.00
60Si2CrVAT	0.56-0.64	1.40-1.80	0.40-0.70	≤0.020	≤0.020	Cr:0.90-1.20，V:0.10-0.20 Ni:≤0.35，Cu:≤0.20
50CrVA	0.46-0.54	0.17-0.37	0.50-0.80	≤0.020	≤0.020	Cr:0.80-1.10，V:0.10-0.20 Ni:≤0.25，Cu:≤0.15
B55SiCrV	0.51-0.59	1.20-1.60	0.60-0.80	≤0.025	≤0.025	Cr:0.60-0.80，V:0.15-0.25 Cu:≤0.12

Wire Rod for Tire Cord (Agreement)

Grade	Chemical Composition Limits,%
Grade	Carbon	Silicon	Manganese	Phosphorus	Sulfur	P+S
B72LX	0.70-0.76	≤0.30	0. 40-0.60	≤0.020	≤0.015	≤0.30
B82LX	0.80-0.85	≤0.30	0. 40-0.60	≤0.020	≤0.015	≤0.30

Available Sizes

Size Range (mm)：5.5 - 26.0

Diameter			Diameter
(mm)	(Inch)	(mm)	(mm)	(Inch)	(mm)
5.5	7/32	5.56	13.5	17/32	13.49
6	15/64	5.95	14	35/64	13.89
6.5			14.5
7	9/32	7.14	15	19/32	15.08
7.5	19/64	7.54	15.5	39/64	15.48
8	5/16	7.94	16
8.5			17	43/64	17.07
9	23/64	9.13	18
9.5	3/8	9.53	19	3/4	19.05
10	25/64	9.92	20
10.5			21	53/64	21.03
11	7/16	11.11	22
11.5	29/64	11.51	23	29/32	23.02
12	15/32	11.91	24
12.5			25	63/64	25
13	33/64	13.1	26

Tolerance Specification (mm)

Diameter	A Class Tolerance		B Class Tolerance		C Class Tolerance
Diameter	Tolerance	Out-of-round	Tolerance	Out-of-round	Tolerance	Out-of-round
D≤10.0	±0.30	≤0.36	±0.20	≤0.24	±0.15	≤0.18
10.0＜D≤14.5	±0.40	≤0.48	±0.25	≤0.30	±0.20	≤0.24
14.5＜D≤26.0	±0.50	≤0.60	±0.30	≤0.36	±0.25	≤0.30

Key words：

Long Products / Flat Products / Special Products

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