Dual Phase Steel

Docol 1000DP Dual Phase Steel (DP)

Docol 1000DP Dual Phase Steel (DP) DescriptionDocol 1000DP: Docl 1000DP steel developed to increase automotive safety has excellent forming and welding properties. This steel is subjected to a special heat treatment, which mainly produces a two-phase structure. Ferrite, which imparts formabi

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Docol 1000DP Dual Phase Steel (DP) Description

Docol 1000DP: Docl 1000DP steel developed to increase automotive safety has excellent forming and welding properties. This steel is subjected to a special heat treatment, which mainly produces a two-phase structure. Ferrite, which imparts formability, represents one phase, while martensite, which is responsible for strength, represents the other phase. Bainite may exist in the form of complementary phases.

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 CR590Y 980T-DP	VDA239- 100:2016	UC,EG, GI, GA, ZA	L	590-740	980-1130	10	UC, eg 2.0XT GI,GA,ZA3.0xt
Docol CR700Y 980T-DP	VDA239- 100:2016	UC,EG, GI, GA, ZA	L	700-850	980-1130	8	UC, eg 2.0XT GI,GA,ZA3.0xt
Docol CR700Y 980T-DP-LCE	SSAB	UC,EG, GI, GA, ZA	T	700-900	980-1130	8	UC, eg 2.0XT GI,GA,ZA2.5xt
Docol CR700Y 1000T-DP	SSAB	UC, eg.	L	700-950	1000-1200	7	2.0xt
Docol1000 DPX	SSAB	GI, ZA	T	800-1000	1000-1200	6	2.0xt

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 CR590Y 980T-DP	UC, eg.	0.18	0.60	1.80	0.020	0.010	0.015-1.00	-	1.40	0.005	0.20
Docol CR590Y 980T-DP	GI,GA,ZA	0.20	1.00	2.90	0.050	0.010	0.015-1.00	0.15	1.40	0.005	0.20
Docol CR700Y 980T-DP	UC, eg.	0.16	0.40	1.80	0.020	0.010	0.015-1.00	0.10	0.15	0.005	0.20
Docol CR700Y 980T-DP	GI,GA,ZA	0.23	1.00	2.90	0.050	0.010	0.015-1.00	0.10	1.40	0.005	0.20
Docol CR700Y 980T-DP-LCE	UC, eg.	0.11	0.30	2.60	0.020	0.005	0.015-	0.10	0.15	0.0035	0.10
Docol CR700Y 980T-DP-LCE	GI,GA,ZA	0.10	0.30	2.90	0.020	0.005	0.015-2.00	0.10	0.60	0.0035	0.10
Docol CR700Y 1000T-DP	UC, eg.	0.18	0.80	1.80	0.020	0.010	0.015-1.00	0.10	1.40	0.005	0.20
Docol1000 DPX	GI,ZA	0.23	1.00	2.70	0.050	0.010	0.015-1.00	0.15	1.00	0.005	0.20

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-
EG	ZE25/25	EN10152	12	1.7
EG	ZE50/50	EN10152	29	4.1
EG	ZE75/75	EN10152	47	6.6
EG	ZE100/100	EN10152	65	9.1

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