Tappi Prodng conditions uct symbolLS-SP-PSLS-PFLS-SP-PFPS LHPF LHAUSP RpAUSP GSU-PFSU-SP-PF
Ta Surfap material ce treatmentHSSHSSHSSHSSHSSHSS CoatingHSS CoatingHSS OXHSS OX
NameFor parallel pipe threads general use; Long, forFor parallel pipe thr For left-heads; For general use and threadsFor para threadsllel pipe , coatedFor parallel For stainlpipe threads ess steel
Bored For M For UiHole Shape etric Threads nified Threads
For Whitworth Threads
For Screw Threads Pipused on Sewing Machines e Threads⑧-46⑧-73⑧-75⑧-43⑧-72⑧-10⑧-12⑧-76⑧-77
American Pipe Threads
For Min For Trapiature Threads ezoidal Threads
~S25CLow carbon steels◆ ○◆ ○◆ ○◆ ○◆ ○◆ ◆ ◎◆ ◆ ◎◆ ◎◆ ◎
S25C~S45CMedium carbon steels◆ ◎◆ ◎◆ ◎◆ ◎◆ ◎◆ ◆ ◎◆ ◆ ◎◆ ○◆ ○
S45C~High carbon steels◆ ○◆ ○◆ ○◆ ○◆ ○◆ ◆ ◎◆ ◆ ◎◆ ○
SCMAlloy steels◆ ◆ ◎◆ ◆ ◎◆ ◎
25~35HRCHeat treated steel
35~45HRCHeat treated steel
45~55HRCHeat treated steel
55~63HRCHeat treated steel
SUSStainless steels(SUS)◆ ◆ ○◆ ◆ ○◆ ◎◆ ◎
SKDTool steels
SCCast steels
FCCast irons
FCDDuctile cast irons
CuCopper
BsBrass
BsCBrass castings
PBBronze
ALWrought aluminum
AC, ADCWrought aluminum◆ ○◆ ○
MgMagnesium alloy die castings
ZDCZinc alloy die castings◆ ○◆ ○
Titanium alloys
Nickel base alloys
Thermosetting plastic
Thermoplastic resin

For American parallel For American Dryseal

For parallel pipe threads; For cast iron pipe threads; parallel pipe threads;

For general use For general use