AU2014100863A4 - High carbon content high hardness Bainite Steel - Google Patents
High carbon content high hardness Bainite SteelInfo
- Publication number
- AU2014100863A4 AU2014100863A4 AU2014100863A AU2014100863A AU2014100863A4 AU 2014100863 A4 AU2014100863 A4 AU 2014100863A4 AU 2014100863 A AU2014100863 A AU 2014100863A AU 2014100863 A AU2014100863 A AU 2014100863A AU 2014100863 A4 AU2014100863 A4 AU 2014100863A4
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- AU
- Australia
- Prior art keywords
- steel
- expensive
- carbon content
- hardness
- alloy
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Abstract So far the most popular materials for planting point /blade are Ni-Cr-Mo low alloy steel such as AISI 8630, and alloy white iron such as AS2027/Cr27. Ni-Cr-Mo low alloy steel has good toughness which can be used for soils with gravels, but the hardness (HB 460-520) of this steel is not very high to get long service life. By the way, Mo price in recent years rocketed up to unbelievably high level, making this steel a little bit too expensive for quantity use. Cr27 is hard (HB 550-700) but brittle, not recommended for soil with gravels. Besides, Hi Cr content, about 27%, make this casting iron quite expensive. A high carbon content high hardness Bainite steel (HB 590-670) with reasonable toughness, without expensive Mo nor large quantity of alloy elements, is designed for planting point/blade.
Description
Editorial Note 2014100863 There is 1 page of description Full description of this invention So far the most popular materials for planting point /blade are Ni-Cr-Mo low alloy steel such as AISI 8630, and alloy white iron such as AS2027/Cr27. Ni-Cr-Mo low alloy steel has good toughness which can be used for soils with gravels, but the hardness (HB 460-520) of this steel is not very high to get long service life. By the way, Mo price in recent years rocketed up to unbelievably high level, making this steel a little bit too expensive for quantity use. Cr27 is hard (HB 550-700) but brittle, not recommended for soil with gravels. Besides, Hi Cr content, about 27%, make this casting iron quite expensive. A high carbon content high hardness Bainite steel (HB 590-670) with reasonable toughness, without expensive Mo nor large quantity of alloy elements, is designed for planting point/blade. The chemical content of the high carbon content high hardness Bainite steel: Element C Si Mn Cr V S P Fe % 0.60-0.90 0.90-3.00 1.20-3.50 0.80-3.10 0.10-0.30 50.40 50.40 rest Heat Treatment of the high carbon content high hardness Bainite steel: Hardening: Heating up to 850-980'C, keep at this temperature for one hour per 25mm section, then cooled in air. Tempering: Heating up to 120-350'C, keeping at this temperature for 2 hours per 25mm section. The air inside the tempering furnace must be circulated by force. Then cooled in air. The mechanical property of the high carbon content high hardness Bainite steel: Hardness HB 590-670 Toughness (Charpy un-notched) as casted >10 J Advantage of high hardness Bainite Steel: 1. Low cost because low content of alloy elements and no expensive alloy element such as Mo 2. Simple heat treatment process which decrease cost further. 3. Same Hardness range to Cr27 cast iron 4. Reasonable toughness, Charpy un-notched impact value >10 J for castings. This new material has wide application not only in farm industry and mining industry.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2014100863A AU2014100863A4 (en) | 2014-07-31 | 2014-07-31 | High carbon content high hardness Bainite Steel |
| CN201510449119.1A CN105483567A (en) | 2014-07-31 | 2015-07-28 | High carbon high hardness bainite steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2014100863A AU2014100863A4 (en) | 2014-07-31 | 2014-07-31 | High carbon content high hardness Bainite Steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2014100863A4 true AU2014100863A4 (en) | 2014-08-28 |
Family
ID=51402232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2014100863A Expired AU2014100863A4 (en) | 2014-07-31 | 2014-07-31 | High carbon content high hardness Bainite Steel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105483567A (en) |
| AU (1) | AU2014100863A4 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1028656C (en) * | 1993-08-21 | 1995-05-31 | 冶金工业部钢铁研究总院 | Wear-resistant low-alloy steel |
| CN1166804C (en) * | 1998-12-07 | 2004-09-15 | 清华大学 | High-strength and high-toughness weldable air-cooled Hongkang bainite steel specially for railway frog |
| JP2000282177A (en) * | 1999-04-02 | 2000-10-10 | Kobe Steel Ltd | Steel for piston ring |
| CN1107738C (en) * | 2000-12-14 | 2003-05-07 | 杨继玉 | Alloy reinforced cast steel ball |
| CN100357477C (en) * | 2005-07-06 | 2007-12-26 | 燕山大学 | Super bainite abrasion-resistant steel and its manuafcturing process |
| CN101469390A (en) * | 2007-12-25 | 2009-07-01 | 张莹 | Wear resistant steel cast and method for manufacturing the same |
| CN101618448A (en) * | 2009-07-30 | 2010-01-06 | 襄樊市新兴发钢丸有限公司 | Process for producing chromium alloy cast steel shots |
-
2014
- 2014-07-31 AU AU2014100863A patent/AU2014100863A4/en not_active Expired
-
2015
- 2015-07-28 CN CN201510449119.1A patent/CN105483567A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN105483567A (en) | 2016-04-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |