Steel Pup Joint – EUE/NUE Thread Options

Our company is dedicated to the production and supply of API Spec 5CT-compliant petroleum pipes. We offer a wide variety of products, including tubing pup joints, thickened tubing subs, and casing pup joints, available in multiple specifications.

We also manufacture double male subs, high-pressure short joints, tubing adapters, reducers, and thread protectors for tubing and casing (commonly referred to as wire guards). Additionally, we provide customized machining services based on client drawings for non-standard pup joints, couplings, and pipe fittings.

Steel Grades Available:

J55, K55, N80, L80, P110

Product Size Range:

• Tubing Subs: 1.315" – 4-1/2" (33.4mm – 114.3mm)

• Casing Subs: 4-1/2" – 20" (114.3mm – 508mm)

Available Connection Types:

• PIN × PIN – Double male connection

• PIN × BOX – Male × Female connection

• BOX × PIN – Female × Male connection

• Flush joint – Smooth-end connection

Machining Capabilities:

• Length options: 2 ft to 20 ft

• End connections:

• EUE (External Upset End)

• NUE (Non-Upset End)

• Thread types:

• SC (Short Round Thread)

• LTC (Long Round Thread)

• BTC (Buttress Thread)

All threads are manufactured strictly according to API 5CT and API 5B standards. Every product undergoes rigorous quality inspection before delivery to ensure consistency, durability, and compliance with international requirements.