API Oilfield Drill Collar Lifting Sub - Alloy Steel Forged Components 73mm to 127mm Size Range

Name: API Oilfield Drill Collar Lifting Sub - Alloy Steel Forged Components 73mm to 127mm Size Range
Brand: Dongying Oilman Machinery Equipment Co.,Ltd.

Professional API-certified drill collar lifting subs for oilfield applications. Manufactured from high-strength alloy steel using EAF+LF+VD melting and comprehensive heat treatment processes. Available in Type A (18° shoulder) and Type B (90° shoulder) configurations with sizes from 73mm to 127mm. Compliant with API Spec 7-1 and ISO9001:2008 quality standards for reliable performance in petroleum and natural gas drilling operations.

Place of Origin China

Keywords Lift Sub

Packaging Details Export Wooden Case or Pallet

Product Name API Oilfield Mod Forged Forging Steel Drill Collar Lifting Sub Drill Pipe Lift Subs

Material AISI 4145H

Model Number Lifting Sub

neck cervical collar mobile hydraulic scissor lifting platform plastic string lock tag

Product Description

API Oilfield Drill String Lifting Sub Overview

API oilfield drill collar lifting sub product image

Product Description

Lifting subs are specialized tools designed for lifting drill tools in petroleum, natural gas, and geological exploration industries. Available in two structural configurations: Type A with 18-degree shoulder and Type B with 90-degree shoulder. All lifting subs comply with API standards for quality and performance.

Manufacturing Specifications

Material: Alloy steel construction
Melting Process: EAF + LF + VD
Machining Process: Forging + rough machining + heat treatment + finish machining
Heat Treatment: Normalized / Annealed / Quenched / Tempered
Quality Standards: API Spec 7-1 & ISO9001:2008

Technical Specifications

No.	Nominal Size (mm/in)	ID (mm)	External Thread Connection	OD Dp (mm/in)	Bevelled DE (mm)	Tong Space LPB (mm)	DB (mm)
1	73 (2 7/8)	31.8	NC23	79.4	76.2	250	111.1
2	44.5	NC26 (2 3/8)	88.9	82.9	-	-
3	89 (3 1/2)	54	NC31 (2 7/8)	104.8	100.4	127
4	50.8	NC35	120.7	114.7	-
5	68.3	NC38 (3 1/2)	127	121	-
6	127 (5)	71.4	NC44	152.4	144.5	168.3

Contact Information

Dongying OilMan Machinery Equipment Co.
Address: North Two Road, Dongying City, Shandong Province, China
Mobile/WhatsApp/WeChat: +86 13475294399
Email: [email protected]