Dual Phase Steel

Docol 600DP Dual Phase Steel (DP)

Docol 600DP Dual Phase Steel (DP) DescriptionDocol 600DP:Docol 600DP dual-phase steel has good formability and welding performance, and is suitable for automotive safety components such as seat frames. This copper undergoes a special heat treatment, which mainly produces a two-phase structur

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Docol 600DP Dual Phase Steel (DP) Description

Docol 600DP:Docol 600DP dual-phase steel has good formability and welding performance, and is suitable for automotive safety components such as seat frames. This copper undergoes a special heat treatment, which mainly produces a two-phase structure. Ferrite, which can impart formability, represents one phase, while martensite, which is responsible for strength, represents the other phase. Bainite may be present as a complementary phase.

Mechanical Properties

Steel Grade	Standard	Plating	Test Direction	Yield Strength Rp0.2 (MPa)	Tensile Strength Rm (MPa)	Extension Rate A80( min%)	Minimum Bend Inner Diameter for 90 ° Bend
Docol CR 330Y590T- DP	VDA239- 100:2016	UC, GI, GA, ZA	L	330-430	590-700	20	UC 0.0xt GI, GA, FI 1.2xt
Docol CR 280Y600T- DL	SSAB	UC	T	180-360	600-700	20	0.0xt
Docol CR 350Y600T- DP	SSAB	UC	T	350-450	600-700	16	0.0xt

Chemical Composition

Steel Grade	Plating	C (max %)	Si (max %)	Mn (max %)	P (max %)	S (max %)	Al ( %)	Nb Title (max %)	Cr Mo (max%)	B (max %)	Cu (max %)
Docol CR 330Y590T- DP	UC	0.12	0.40	1.60	0.025	0.010	0.015-1.50	0.10	0.10	0.005	0.20
Docol CR 330Y590T- DP	GI,GA,ZA	0.15	0.60	2.50	0.050	0.010	0.015-1.50	0.15	0.15	0.005	0.20
Docol CR 280Y600T- DL	UC	0.12	0.80	1.80	0.020	0.010	0.015-	0.10	0.10	-	-
Docol CR 350Y600T- DP	UC	0.12	0.40	1.00	0.025	0.010	0.015-	0.10	0.10	-	-

Plating

Plating Type	Plating Grade	Standard	Single-sided coating quality, single-point test (g/m2)	Single side thickness, for reference only(μm)
GI	40/40	VDA239-100	40-60	5.6-8.5
GI	50/50	VDA239-100	50-70	7.0-9.9
GI	60/60	VDA239-100	60-90	8.5-12.7
GI	70/70	VDA239-100	70-100	9.9-14.1
GI	85/85	VDA239-100	85-115	12.0-16.2
GI	115/115	VDA239-100	115-155	16.2-21.8
GA	40/40	VDA239-100	40-60	5.6-8.5
GA	50/50	VDA239-100	50-80	7.0-11.3
ZA	95	As required		7-
ZA	130	As required		10-

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