美国大卫埃利斯公司（David Ellis Co, Inc.）是一家专业制造金属硬度块的领导者，结合了125年在各种类型型号规格的硬度计维修，校准和服务经验上，生产所有刻度规格的布式硬度块、洛氏硬度块、努氏硬度块和维氏硬度块。美国大卫埃利斯公司（David Ellis Co, Inc.）通过美国NAVLP的ISO/IEC 17025:2005实验室认证，所有硬度块符合美国ASTM标准、国际ISO标准和军方规范标准等要求，可溯源至美国NIST国家计量院, 现全部现货销售。
美国David Ellis洛氏硬度块ASTM E-18 Rockell hardness block，美国原装进口，权威检测报告，可溯源至美国NIST国家计量院
ASTM E-18洛氏硬度块规格表 |
标尺 | 压头 | 载荷 | 范围 | 材质 |
A Scale | C Diamond | 60 Kg | A60 - A84 | Steel |
A Scale | C Diamond | 60 Kg | A20 - A59 | Brass |
A Scale | A Diamond (Carbide) | 60 Kg | A88 & up | Carbide |
B Scale | 1/16" Ball | 100 Kg | B10 - B92 | Brass |
B Scale | 1/16" Ball | 100 Kg | B90 - B130 | Steel |
C Scale | C Diamond | 150 Kg | All | Steel |
D Scale | C Diamond | 100 Kg | All | Steel |
E Scale | 1/8" Ball | 100 Kg | All | Brass |
F Scale | 1/16" Ball | 60 Kg | All | Brass |
G Scale | 1/16" Ball | 150 Kg | G2.5 - G64 | Brass |
G Scale | 1/16" Ball | 150 Kg | G66 & up | Steel |
H Scale | 1/8" Ball | 60 Kg | All | Brass |
K Scale | 1/8" Ball | 150 Kg | All | Brass |
L Scale | 1/4" Ball | 60 Kg | All | Brass |
M Scale | 1/4" Ball | 100 Kg | All | Brass |
P Scale | 1/4" Ball | 150 Kg | All | Brass |
R Scale | 1/2" Ball | 60 Kg | All | Brass |
S Scale | 1/2" Ball | 100 Kg | All | Brass |
V Scale | 1/2" Ball | 150 Kg | All | Brass |
NOTE: Aluminum Test blocks are available in "B", "E", "F", "G", "H", "K" Scales, but ranges are more limited. |
ASTM E-18表面洛氏硬度块规格表 |
标尺 | 压头 | 载荷 | 范围 | 材质 |
15N Scale | N Diamond | 15 Kg | All | Steel |
30N Scale | N Diamond | 30 Kg | All | Steel |
45N Scale | N Diamond | 45 Kg | All | Steel |
15T Scale | 1/16" Ball | 15 Kg | All | Brass |
30T Scale | 1/16" Ball | 30 Kg | All | Brass |
45T Scale | 1/16" Ball | 45 Kg | All | Brass |
15W Scale | 1/8" Ball | 15 Kg | All | Brass |
30W Scale | 1/8" Ball | 30 Kg | All | Brass |
45W Scale | 1/8" Ball | 45 Kg | All | Brass |
15X Scale | 1/4" Ball | 15 Kg | All | Brass |
30X Scale | 1/4" Ball | 30 Kg | All | Brass |
45X Scale | 1/4" Ball | 45 Kg | All | Brass |
15Y Scale | 1/2" Ball | 15 Kg | All | Brass |
30Y Scale | 1/2" Ball | 30 Kg | All | Brass |
45Y Scale | 1/2" Ball | 45 Kg | All | Brass |