SWCH 12A - JIS G 3507-2-2005

Grade	SWCH 12A
Corresponding Standard	JIS G 3507-2-2005 Carbon steels for cold heading-Part 2: Wires
Classification	Carbon Steel
Properties	Forgability

SWCH 12A Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %	Hardness HBW
Wire	Spheroidizing Annealing Before Cold Working (DA)	≥340	≥55	HRB ≤83
Wire; t≤3	Cold Working (D)	≥590	-	-
Wire; 3<t≤4	Cold Working (D)	≥490	≥45	-
Wire; 4<t≤5	Cold Working (D)	≥410	≥45	-
Wire; t > 5	Cold Working (D)	≥360	≥45	≤90

①For wires of 20 mm or over in wires diameter, the reduction of area shall be a value 5 lower than the value in table. For those of diameter 3 mm or less, the reduction of area is not specified.
②Process:
—Process D: D-Mean a process wherein wire rods are finished by cold working.
—Process DA: DA-Mean a process wherein wire rods having been cold worked are annealed and further finished by cold working or a process wherein wire rods are finished by cold wroking after annealing.

SWCH12A Corresponding Standards(Same grade name, different standards)

1	YJT
	SWCH12A
2	JIS G 3507-2-2005
	SWCH 12A

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