项目 (Item)

规格 (Size)

中国国家标准
GB/T4440-1998

美国国家标准
ANSI／ASME B107.8M-2003

泰丰实验室检测数据
Actual data tested at Taifung’s laboratory

开口量
opening of jaw

硬度
Hardness

扭矩
Torquemoment

开口量
opening of jaw

硬度
Hardness

扭矩
Torquemoment

开口量
opening of jaw

硬度
Hardness

扭矩
Torquemoment

150mm (6”)

19.00 mm

HRC40-50

85 N.m

19.20 mm

HRC40-50

163.90 N.m

20.00 mm

HRC41

165.60 N.m

200mm (8”)

24.00 mm

HRC40-50

180 N.m

24.05 mm

HRC40-50

305.10 N.m

25.00 mm

HRC41

315.40 N.m

250mm (10”)

28.00 mm

HRC40-50

320 N.m

28.78 mm

HRC40-50

508.50 N.m

31.00 mm

HRC41

520.50 N.m

300mm (12”)

34.00 mm

HRC40-50

515 N.m

33.55 mm

HRC40-50

864.50 N.m

38.00 mm

HRC41

865.80 N.m

Element Item

C %

Si %

Mn %

P %

S %

Cr %

Ni %

Cu %

V %

40CrV

0.37-0.44

0.17-0.37

0.50-0.80

≤0.035

≤0.035

0.80-1.10

≤0.030

≤0.030

0.10-0.20

50CrV

0.46-0.54

0.17-0.37

0.50-0.80

≤0.035

≤0.035

0.80-1.10

≤0.035

≤0.025

0.10-0.20