Crossover Subs 79.4--279.4 Size 79.4---279.4

. All connections are protected by a phosphated surface coating tominimize galling on initial make-up.
A: Straight OD Subs
B: Reduced Section Subs
C: Left Hand Subs

 

Mechanical Properties of Cross-over Subs

OD Range		Yield Strength MPa	Tensile Strength MPa	Elongation %	Hardness Brinell HB	Impact AKV J
mm	in
79.4~196.4	31/8~73/4	>=760	>=965	>=13	>=285	>=54
203.2~279.4	8~11	>=690	>=930		>=277

Usage: acts as connecting and change-over,deliver torque function in different types of drill tools.

Crossover Subs 79.4--279.4 Size 79.4---279.4