Purchase Order for ASTM A105 BSPT Hex Bushing

On February 9^th, our company received Purchase Order from customer in Israel about Hex Bushing. This customer has maintained long-term cooperation with our company.

Purchase Order Details

Product Inspection

What is Hex  Bushing ? 

Hex bushings are used to reduce the size of female threads from a larger to a smaller diameter. Hex Bushings are threaded fittings that have male threads on the outside and female threads on the inside with a hex head used to tighten the fitting into the threaded opening.

Chemical Requirements of ASTM A105

Mechanical Properties of ASTM A105 

Tensile Strength:  ≥485 Mpa

Yield Strength  ≥ 250 Mpa

Rear Elongation ≥ 22%

Section Shrinkage ≥ 30%

Hardness ≤ HB187

British Standard Pipe Tapered (BSPT)

British Standard Pipe Tapered is the standard design for tapered threads which is widely used in the world . The diameter is widest at the shoulder of the connection and narrows toward the tip. Threads are pitched at a 55 degree angle with rounded peaks and valleys.

· Thread conforms to ISO 7

· Pitch and diameter are measured in inches, e.g. R3/8-19

· Tapered thread profile seals by metal to metal interference fit, usually requires sealing compound for pressure tight connection

· Tapered angle is 1° 47', the same as NPT(F)

· Thread angle is 55°

· Not interchangeable with NPT(F) 

BSPT Joint Types

Jointing Threads:

lPipe threads achieve pressure tightness by fitting two threads together. Tapered external threads are most commonly used, but parallel or tapered internal threads are used.

Long Screw threads:

lThe parallel threads used where a pressure-tight joint is achieved by the compression of a soft material (such as an o-ring seal or a washer) between the end face of the male thread and a socket or nipple face, with the tightening of a back nut.

BSPT & BSPP Threads Dimensions