TH65809B - High strength hot dip galvanized steel sheet with excellent material stability and formability. And such production method - Google Patents
High strength hot dip galvanized steel sheet with excellent material stability and formability. And such production methodInfo
- Publication number
- TH65809B TH65809B TH1101000099A TH1101000099A TH65809B TH 65809 B TH65809 B TH 65809B TH 1101000099 A TH1101000099 A TH 1101000099A TH 1101000099 A TH1101000099 A TH 1101000099A TH 65809 B TH65809 B TH 65809B
- Authority
- TH
- Thailand
- Prior art keywords
- proportion
- area
- steel sheet
- production method
- galvanized steel
- Prior art date
Links
- 229910001335 Galvanized steel Inorganic materials 0.000 title abstract 2
- 239000008397 galvanized steel Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000000463 material Substances 0.000 title 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 3
- 239000004615 ingredient Substances 0.000 abstract 2
- 229910000734 martensite Inorganic materials 0.000 abstract 2
- 235000019362 perlite Nutrition 0.000 abstract 2
- 239000010451 perlite Substances 0.000 abstract 2
- 239000012535 impurity Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
Abstract
DC60(20/04/54) แผ่นเหล็กกล้าเคลือบสังกะสีแบบจุ่มร้อนความแข็งแรงสูงซึ่งมีความทนต่อแรงดึงTS540 MPaขึ้นไปรวมทั้งมีคุณสมบัติการขึ้นรูป(การยืดตัวสูงและความสามารถในการขยายรูสูง)และความ เสถียรของวัตถุดิบที่ดีเยี่ยมและวิธีการผลิตดังกล่าวส่วนประกอบส่วนผสมมีองค์ประกอบของC: 0.04%ขึ้นไปแต่ไม่เกิน0.13%,Si:0.1%ขึ้นไปแต่ไม่เกิน2.3%,Mu:0.8%ขึ้นไปแต่ไม่เกิน2.0%, P:ไม่เกิน0.1%,S:ไม่เกิน0.01%,Al:ไม่เกิน0.1%,N:ไม่เกิน0.008%โดยมอล%,ส่วนที่เหลือ ประกอบด้วยFeและสิ่งเจือปนที่หลีกเลี่ยงไม่ได้,และโครงสร้างจุลภาคมีเฟสเฟอร์ไรต์ร้อยละ75ขึ้น ไปและเฟสเบนไนติกเฟอร์ไรต์ร้อยละ1.0ขึ้นไปและเฟสเพอร์ไลต์ร้อยละ1.0ขึ้นไปแต่ไม่เกินร้อยละ 10.0โดยสัดส่วนพื้นที่นอกจากนั้นยังมีสัดส่วนพื้นที่ของเฟสมาร์เทนไซต์ร้อยละ1.0ขึ้นไปแต่น้อยกว่า ร้อยละ5.0รวมทั้งทำให้สัดส่วนพื้นที่มาร์เทนไซต์/(สัดส่วนพื้นที่เบนไนติกเฟอร์ไรต์+สัดส่วนพื้นที่ เพอร์ไลต์)(มากกว่าหรือเท่ากับ)0.6กลายเป็นจริง DC60(20/04/54) High strength hot dipped galvanized steel sheet with tensile strengthTS540. MPa and above, including forming properties (high elongation and high hole expansion ability) and Excellent raw material stability and production method. Ingredient ingredients include C: 0.04% or more but not more than 0.13%, Si: 0.1% or more but not more than 2.3%, Mu: 0.8% or more but not more than 2.0%, P: not more than 0.1%, S: not more than 0.01%, Al: not more than 0.1%, N: not more than 0.008% bymol%, the rest It contains Fe and unavoidable impurities, and the microstructure contains 75% ferrite phase. and benzenetic ferrite phase of 1.0% or more and perlite phase of 1.0% or more but not more than 1.0%. 10.0 by area proportion. In addition, there is also an area proportion of martensite phase of 1.0% or more but less than. 5.0 percent including making the proportion of martensite area/(proportion of bennitic ferrite area + proportion of area Perlite(greater than or equal to)0.6 becomes true
Claims (1)
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TH137161A TH137161A (en) | 2014-10-08 |
| TH65809B true TH65809B (en) | 2014-10-08 |
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