Docol 500DP Dual Phase Steel (DP)
Docol 500DP: Docol 500DP dual-phase steel has good formability and weldability and is suitable for automotive safety components such as reinforcements. This steel is subjected to 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.
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Product Description

Docol 500DP: Docol 500DP dual-phase steel has good formability and weldability and is suitable for automotive safety components such as reinforcements. This steel is subjected to 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 also be present as a complementary phase.

 

Mechanical Properties

Steel GradeStandardPlatingTest DirectionYield Strength Rp0.2 (MPa)Tensile Strength Rm (MPa)Extension Rate A80( min%)Minimum Bend Inner Diameter for 90 ° Bend
Docol CR290Y490T-DPVDA239- 100:2016UC, GI, GA*, FRL290-380490-60024UC 0.0xtGI, GA, FI0.5xt
Docol CR230Y500T- DLSSABUCT230-300500-600240.0xt
Docol CR290Y500T- DPSSABUCT290-370500-600200.0xt

 

Chemical Composition

Steel GradePlatingC (max %)Si (max %)Mn(max %)P (max %)S(max %)Al( %)Cr Mo(max%)B(max %)Nb Title(max %)
Docol CR290Y490T-DPUC0.100.501.000.0250.0100.015--0.10-
Docol CR290Y490T-DPGI,GA,ZA0.140.501.800.0500.0100.015-1.01.000.150.005
Docol CR230Y500T- DLUC0.080.401.800.0250.0100.015--0.10-
Docol CR290Y500T- DPUC0.100.501.000.0250.0100.015--0.10-

 

Plating

Plating TypePlating GradeStandardSingle-sided coating quality, single-point test (g/m2)Single side thickness, for reference only(μm)
GI40/40VDA239-10040-605.6-8.5
GI50/50VDA239-10050-707.0-9.9
GI60/60VDA239-10060-908.5-12.7
GI70/70VDA239-10070-1009.9-14.1
GI85/85VDA239-10085-11512.0-16.2
GI115/115VDA239-100115-15516.2-21.8
GA40/40VDA239-10040-605.6-8.5
GA50/50VDA239-10050-807.0-11.3
ZA95As required
7-
ZA130As required
10-


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FAQ

1. Q: How can we trust your company?
A: We have specialized in the steel industry for many years, and we welcome you to investigate us through any means.
2. Q: How do you ensure product quality?
A: 1. We have obtained certifications such as ISO 9001, SGS, and CE;
We always provide pre-production samples before mass production, and conduct final inspections before shipment;
We accept third-party inspections.
3. Q: What about product pricing?
A: Due to cyclical fluctuations in raw material prices, prices may vary over time. You are welcome to contact us at any time via our platform, WeChat, WhatsApp, or other channels; we will respond within 24 hours. Please provide your specific requirements and specifications (steel grade, dimensions, quantity, destination port), and we will provide a quote as soon as possible.
4. Q: Can I visit your factory?
A: Of course. We welcome clients from around the world to visit our factory. However, some workshops are not open to the public.
5. Q: What is the lead time?
A: Generally, our lead time is 15–45 days. However, delivery may be delayed for particularly large orders or under special circumstances.

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