ASTM D2000|Global O-Ring and Seal - 欧宝娱乐c,欧宝直播官网在线

ASTM D2000標準

How to Read and Interpret

The most common material classification system used in o-ring specification is theStandard Classification System for Rubber Products in Automotive Applications, also known as the ASTM D2000. Developed by the美國汽車工程師學會（SAE），線路呼出是一種描述彈性體材料的簡化方法。此頁麵是閱讀ASTM D2000線呼叫的詳細指南。

我們的ASTM D2000指南：

Helps in understanding the ASTM standard as it applies to o-rings and seals.
Effectively breaks down each segment of an ASTM D2000 call-out.
Includes Type and Class material designations and Requirement Suffixes
Can be emailed to you with a可下載鏈接！

The full ASTM D2000 Guide is continued on the remainder of the page below.

How to Read an ASTM D2000 Line Call-Out

規範修訂

一種STM-D2000-99M 2 HK 7 14 A1-10，B38，C12，EF31，EO88，F15，Z1

This indicates the revision year of D2000 to which the line call-out makes reference.

M.easurement Units

ASTM D2000-99M.2 HK 7 14 A1-10，B38，C12，EF31，EO88，F15，Z1

如果存在M，則公製單元將用於拉伸強度，溫度和撕裂強度（MPa，°C和KN / M）。如果沒有M存在，則將使用英語單位（PSI，°F和PPI）。

等級

ASTM D2000-99 M.2香港7 14 A1-10，B38，C12，EF31，EO88，F15，Z1

This indicates the level of test requirements to which a material may be subjected. For example, Grade 1 shows that only basic properties are required, while Grades 2-9 require additional testing criteria, such as low temperature brittleness or special heat aging tests. In our example, we will be looking at a fluorocarbon material that must meet some or all Grade 2 requirements. Note that Grade Numbers may not be relevant to all material Types and Classes.

類型和類

ASTM D2000-99 M 2香港7 14 A1-10，B38，C12，EF31，EO88，F15，Z1

如下所示的表包含用於類型和類的最常見的聚合物。

分類係統D2000 SAE J200材質名稱（類型和類）	最常使用的聚合物測試
AA.	N.atural rubber, reclaimed rubber, SBR, butyl, EP polybutadiene, polyisoprene
AK.	多硫化物
BA.	乙烯丙烯，高溫SBR，丁基化合物
公元前	Chloroprene polymers (neoprene), cm
是	Chloroprene polymers (neoprene), cm
BF.	NBR聚合物
BG.	NBR聚合物，氨基甲酸酯
BK.	NBR.
加利福尼亞州	乙烯丙烯
ce	Chlorosulfinated polyethylene (Hypalon), cm
CH.	NBR聚合物，表氯醇聚合物
達	乙烯丙烯聚合物
德	CM., CSM
DF.	P.olyacrylic (butyl-acrylate type)
DH.	聚丙烯酸聚合物，HNBR
EE.	AEM.
EH.	ACM.
ek.	FZ.
FC.	Silicone (high strength)
Fe.	矽氧烷
FK.	氟化矽氧烷
GE	矽氧烷
香港	Fluorinated elastomers (Viton®, Fluorel, etc.)
K.K.	全氟彈性體

對於每種類型和類，ASTM D2000包括一個表提供所有基本要求，物理屬性和所有後綴要求。

硬度（硬度計）

ASTM-D2000-99 M 2 HK7.14.A1-10，B38，C12，EF31，EO88，F15，Z1

This number indicates durometer range in Shore A units (plus or minus 5 points). In our example, the material specified would possess a hardness of 70 ± 5 durometer.

抗拉強度

ASTM-D2000-99 M 2 HK 714.A1-10，B38，C12，EF31，EO88，F15，Z1

The next two digits indicate the material’s minimum tensile strength. If measurements are in metric units, the digits show MPa. If measurements are in English units, the digits show psi and only the first two digits of that measurement are indicated. In our example (which is in metric units), the two tensile strength digits are “14” thus the minimum tensile strength required would be 14MPa. If this example were non-metric, this callout would be 20 (14 Mpa = 2031 psi).

線路呼出的前六個字符提供了有關所需彈性體類型及其物理性質的大量基本信息。大多數規格需要更多信息來保證密封將滿足申請的需求。

其他要求後綴