TH86353B - Hot-dip galvanized steel sheet has high strength, high yield ratio, excellent toughness and hole-expansion properties, and the production process is - Google Patents
Hot-dip galvanized steel sheet has high strength, high yield ratio, excellent toughness and hole-expansion properties, and the production process isInfo
- Publication number
- TH86353B TH86353B TH602000542F TH0602000542F TH86353B TH 86353 B TH86353 B TH 86353B TH 602000542 F TH602000542 F TH 602000542F TH 0602000542 F TH0602000542 F TH 0602000542F TH 86353 B TH86353 B TH 86353B
- Authority
- TH
- Thailand
- Prior art keywords
- ferrite
- hot
- steel sheet
- galvanized steel
- dip galvanized
- Prior art date
Links
- 229910001335 Galvanized steel Inorganic materials 0.000 title abstract 3
- 239000008397 galvanized steel Substances 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000011449 brick Substances 0.000 claims 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000011230 binding agent Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910000734 martensite Inorganic materials 0.000 abstract 1
Abstract
DC60(10/10/54) แผ่นเหล็กกล้าชุบสังกะสีแบบจุ่มร้อนที่มีความต้านแรงดึงTS590Mpaขึ้นไปตลอดจนมี ความสามารถในการเป็นเส้นและคุณสมบัติการแผ่ขยายรูดีเลิศและมีอัตราส่วนการครากสูงรวมทั้ง กรรมวิธีการผลิตนั้นแผ่นเหล็กกล้าชุบสังกะสีแบบจุ่มร้อนความแข็งแรงสูงอัตรส่วนการครากสูงที่มี ความสามารถในการเป็นเส้นและคุณสมบัติการแผ่ขยายรูดีเลิศที่มีสักษณะจำเพาะคือองค์ประกอบ ส่วนประกอบจะมี(mass%)C:0.04%ขึ้นไปไม่เกิน0.13%,Si:0.9%ขึ้นไปไม่เกิน2.3%,Mn: 0.8%ขึ้นไปไม่เกิน2.4%,P:ไม่เกิน0.1%,S:ไม่เกิน0.01%,Al:0.01%ขึ้นไปไม่เกิน0.1%,N:ไม่ เกิน0.008%และส่วนที่เหลือเกิดจากเหล็กและสิ่งเจือปนที่เลี่ยงไม่ได้โดยที่โครงสร้างจะเป็น(อัตรา ส่วนพื้นที่)เฟอร์ไรต์94%ขึ้นไป,มาร์เทนไซต์ไม่เกิน2%และขนาดเกรนผลึกเฉลี่ยของเฟอร์ไรต์จะไม่ เกิน10ไมครอนและมีความแข็งแบบวิคเกอร์ของเฟอร์ไรต์จะเป็น140ขึ้นไปรวมทั้งขนาดเกรนผลึกเฉลี่ย ของคาร์ไบด์ที่มีอยู่บนขอบเกรนผลึกของเฟอร์ไรต์จะไม่เกิน0.5ไมครอนและอัตราส่วนกว้างยาวของคาร์ ไบด์ที่มีอยู่บนขอบเกรนผลึกของเฟอร์ไรต์จะไม่เกิน2.0 DC60(10/10/54) Hot-dip galvanized steel sheet with tensile strengthTS590Mpa and above, as well as Excellent lineability and hole spreading properties and high yield ratio including The production process is hot-dip galvanized steel sheet, high strength, high yield ratio with Characteristics of excellent lineability and hole spreading properties are the components. The components will have (mass%) C: 0.04% or more, not more than 0.13%, Si: 0.9% or more, not more than 2.3%, Mn: 0.8% or more, not more than 2.4%, P: not more than 0.1%, S: no. More than 0.01%, Al: 0.01% or more, not more than 0.1%, N: no exceeds 0.008% and the remainder is caused by iron and impurities that are unavoidable by the structure being (rate area) ferrite 94% or more, martensite not more than 2%, and the average crystal grain size of ferrite is not exceeds 10 microns and has a Vickers hardness of ferrite of 140 and above as well as an average crystalline grain size. of carbide present on the crystalline grain boundary of ferrite does not exceed 0.5 micron and the aspect ratio of carbide The binder present on the crystalline grain boundaries of ferrite does not exceed 2.0.
Claims (1)
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TH132406A TH132406A (en) | 2014-04-03 |
| TH86353B true TH86353B (en) | 2014-04-03 |
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