Stable Services’ Heavy Weight Drill Pipe (HWDP) is manufactured from AISI 4145H modified steel. HWDP is bored, drifted and fully heat treated to meet or exceed the mechanical property requirements of NS-1. A through-wall hardness range of 285–341 HB and a charpy “V” notch impact strength of 42 joules at 20ºC are guaranteed one inch below the surface.

API Connection
All API connections comply with dimensional requirements specified in API spec 7 and API RP 7G. Common sizes and styles are summarised in Table 1 below. Premium connections are available on request.

Options Available
• Integral or friction welded
• Standard and spiral
• Hard-banding
• Full length internal plastic coating
• Alloy steel
• Non-magnetic steel
• Sale or rental