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1. High Carbon Steel
Wire Rod
High Carbon Steel Wire Rod
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Classification
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SWRH42
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SWRH47
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SWRH52
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SWRH62
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SWRH67
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SWRH72
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SWRH77
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SWRH82
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A
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B
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A
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B
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A
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B
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A
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B
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A
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B
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A
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B
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A
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B
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A
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B
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Tensile Strength
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Target Value
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74
|
78
|
78
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87
|
83
|
88
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98
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100
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101
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107
|
106
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110
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110
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118
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115
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100
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Control Range
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67-81
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71-85
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71-85
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80-94
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80-90
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83-97
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92-106
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94-108
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95-109
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100-114
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99-113
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103-117
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113-127
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113-127
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113-127
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115-129
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Wire Rods for Piano and Tire Cord
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Classification
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SWRS80B
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SWRS82A
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SWRS92A
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AISI1069
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AISI1080
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Tensile Strength
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Target Value
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121
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121
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125
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103
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116
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Control Range
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114-128
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114-128
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120-134
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98-108
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111-121
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Wire Rod for Welding Rods
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Classification
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CO2 Gas Shielded Arc Welding
Rod
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Submerged Arc Welding Rod
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Target Value
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Control Range
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Target Value
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Control Range
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Tensile Strength
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≤ 53
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50-63
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≤ 54
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≤ 65
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R.A.(%)
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≥ 82
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≥ 75
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≥ 72
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≥ 60
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2.
De-Carburization
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Classification
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Steel Type Category
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Depth of De-Carburization
(mm)
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Under 13 mmØ
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13 mmØand above
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Complete De-Carburization
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Special Carbon Steel Wire Rod
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≤0.10
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-
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Wire Rods for Tire Cord and
Piano
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≤0.05
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-
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Wire Rod for Bearing Steel
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≤0.05
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≤0.10
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Partial De-Carburization
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Wire Rod for Cold Heading
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≤0.08
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≤0.13
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Spring Steel Wire Rod
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≤0.05
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≤0.08
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High Carbon Steel Wire Rods
for General Purposes
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≤0.12
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≤0.15
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Alloy Steel
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≤0.08
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≤0.13
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Others
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≤0.12
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≤0.20
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