Skip to content
study&info
2014.01.07 17:59

황동 종류

Views 12814 Comment 0
?

Shortcut

PrevPrev Article

NextNext Article

Larger Font Smaller Font Up Down Go comment Print
?

Shortcut

PrevPrev Article

NextNext Article

Larger Font Smaller Font Up Down Go comment Print
Brass is one of the most-used materials in the world. The term brass generally applies to alloys of copper where the main alloying ingredient beside copper is zinc. Other alloys of copper where the main alloying ingredient is tin are usually referred to as bronze.

Brass is generally known for several things - decent strength and electrical conductivity, it can be polished easily, and there seems to be a brass for just about every application. With few exceptions, most notably C230 Red Brass and C770 Nickel Silver, materials in this category generally are yellow in color. OnlineMetals.com currently stocks six brass alloys.

C230 Brass (available in Pipe)
C260 Brass (available in Foil, Plate, Sheet, Tube)
 
C360 Brass (available in Hex, Rectangle, Round, Square)
C464 Brass (available in Plate, Round, Sheet)
C770 Nickel Silver (available in Sheet)

230 Brass (Red Brass)
As the name would imply, this material is reddish in color. It is one of the stronger brass items that we carry.

C230 Red Brass
Minimum Properties Ultimate Tensile Strength, psi 70,300
Yield Strength, psi 57,300
Elongation 5%
Rockwell Hardness B77
Chemistry Copper (Cu) 84 - 86%
Zinc (Zn) 15%
Iron (Fe) 0.05% min
Lead (Pb) 0.06% min

260 Brass (Cartridge Brass)
260 Brass is known by about a zillion different names, but the most common are yellow brass and cartridge brass, the second because it is generally used for shell casings. As a rule, it is only available in sheet, and is not very machinable, but is a great combination of formability and workability.

C260 Cartridge Brass
Minimum Properties Ultimate Tensile Strength, psi 61,600
Yield Strength, psi 52,200
Elongation 23%
Rockwell Hardness B77
Chemistry Copper (Cu) 68.5 - 71.5%
Zinc (Zn) 28.5 - 31.5%
Iron (Fe) 0.05% max
Lead (Pb) 0.07% max

330 Brass (no nickname for this brass, and it gets picked on by the other brasses)
We've never figured out why this material doesn't have a nickname, but that is the metals industry for you. It is normally only available in tubing products, and has a good balance of both workability and machinability (the latter due to the presence of lead).

If you've ever seen a brass fire pole, or, um, any other kind of brass poles, chances are you were looking at 330 Brass.

C330 Brass
Minimum Properties Ultimate Tensile Strength, psi 65,300
Yield Strength, psi 50,000
Elongation 32%
Rockwell Hardness B70
Chemistry Copper (Cu) 65 - 68%
Zinc (Zn) 33.5%
Iron (Fe) 0.07% max
Lead (Pb) 0.2 - 0.8%

360 Brass (Free Machining Brass)
Free Machining brass is the most commonly used of the brass rod and bar items. The presence of lead in the alloy creates a highly machinable material that can easily be cut and shaped into whatever you need. It is not so good, however, at forming operations.

C360 Free Machining Brass
Minimum Properties Ultimate Tensile Strength, psi 58,000
Yield Strength, psi 45,000
Elongation 25%
Rockwell Hardness B78
Chemistry Copper (Cu) 60 - 63%
Zinc (Zn) 35.5%
Iron (Fe) 0.35% min
Lead (Pb) 2.5 - 3.7%

464 Naval Brass / Naval Bronze
Used primarily in applications where corrosion resistance is important, the material has a small amount of tin added to help deal with corrosion, especially in seawater.

C464 Naval Brass / Naval Bronze
Minimum Properties Ultimate Tensile Strength, psi 75,000
Yield Strength, psi 52,900
Elongation 20%
Rockwell Hardness B82
Chemistry Copper (Cu) 59 - 62%
Zinc (Zn) 39.25%
Iron (Fe) 0.10% max
Tin (Sn) 0.5 - 1.00%

770 (Nickel Silver)
Nickel Silver is named for its silvery appearance, but surprisingly contains no silver at all.

C770 Nickel Silver
Minimum Properties Ultimate Tensile Strength, psi 108,000
Yield Strength, psi 89,900
Elongation 2.5%
Rockwell Hardness B96
Chemistry Copper (Cu) 53.5 - 56.5%
Iron (Fe) 0.25% max
Manganese (Mn) 0.5% max
Nickel (Ni) 16.5 - 19.5%
Lead (Pb) 0.1% max
Zinc (Zn) 27%

At OnlineMetals, we all failed shop class. Multiple times. As a matter of fact, our employment applications specifically ask to see people's grades for their high school shop classes. If they're too high, they go into the rejected pile. We're also not engineers, and cannot make any specific recommendations about the suitability of a given alloy, temper, or shape for your project or application.

 

 

출처: http://www.onlinemetals.com/brassguide.cfm

 


List of Articles
No. Category Subject Author Date Views
235 study&info 인벌루트 기어커터 제작법 Kwanghun Hyun 2014.02.15 6803
234 free board 항상 구경 잘하고 있습니다^^ 1 secret 바산 2014.02.14 2
233 study&info Carbide inserts chart 인서트팁 읽는법 file Kwanghun Hyun 2014.02.11 8087
» study&info 황동 종류 Kwanghun Hyun 2014.01.07 12814
231 free board 반갑습니다. 너무 멋집니다. 1 번개박핢 2014.01.04 9914
230 free board 안녕하세요 1 바람을찍는다 2013.12.17 10116
229 free board YTN사이언스 <황금나침반> "젊은 장인들의 ... 1 Kwanghun Hyun 2013.12.10 11484
228 free board 금속공예가의 조명_빛을 내는 사물 2013.12.... file Kwanghun Hyun 2013.12.04 13219
227 free board 탭을 이용한 웜기어 가공 Kwanghun Hyun 2013.11.30 12928
226 free board Design Week in Daegu 2013 file Kwanghun Hyun 2013.11.20 21017
225 study&info 나사규격 비교표 file Kwanghun Hyun 2013.11.17 13885
224 study&info 인치나사 외경 미리단위 변환표 file Kwanghun Hyun 2013.11.16 18302
223 study&info 인치 드릴비트 사이즈 file Kwanghun Hyun 2013.11.02 13423
222 free board 안녕하세요 1 Du-sanBaek 2013.11.02 9498
221 study&info 인벌루트 스퍼 기어(Involute spur gears) 빌더 file Kwanghun Hyun 2013.10.16 32738
Board Pagination Prev 1 ... 4 5 6 7 8 9 10 11 12 13 ... 24 Next
/ 24

copyright(c) Kwanghun Hyun All rights reserved
email. kwanghun.hyun@gmail.com

kwanghun hyun

sketchbook5, 스케치북5

sketchbook5, 스케치북5

나눔글꼴 설치 안내


이 PC에는 나눔글꼴이 설치되어 있지 않습니다.

이 사이트를 나눔글꼴로 보기 위해서는
나눔글꼴을 설치해야 합니다.

설치 취소