| Place of Origin: | China (Mainland) |
|---|---|
| Brand Name: | HHF |
| Model Number: | 6" |
| Certification: | API |
| Material: | High Manganese Steel |
| Material: | 4145H mod |
| OD: | 80mm to 280mm |
| Length: | 9150 or 9450 |
Quick Details
Specifications
About our mining drill pipe:
We choose AISI 4145H MOD alloy steel with the best quality as the material provides our customers with better mechanical properties, grain size and metallurgical structure higher than the requirements of API SPEC 7-1. We are the main base for oil drilling products in China, and they are
also our main export products to Europe, America, South Africa, India and Singapore etc.
Manufacture technical :
1.Melting process:EAF + LF + VD
2.Process:Forged + Heat Treatment + Fine machined(turning + deep hole drilling + threading + hardfacing ).
We can machining according to your requirement.
3.Heat treatment: Normalized / Annealed / Quenched / tempered
4.Drill pipes are our main product, which are mainly made from AISI 4145H
MOD forging steel.
5.The physical properties are guaranteed one inch below the surface at normal temperature.
6.Heat treated by water quenching and tempering,rough machined as the drawing dimensions.
7.Strict UT inspection according to ASTM A-388 to guarantee high quality.
Mechanical Properties :
Drill Collar OD range | Yield | Tensile | Elongation | Brinell | Impact |
mm | Mpa(min) | Mpa(min) | %(min) | HB(min) | AK(min) |
79.4~174.9 | 758 | 955 | 13 | 285 | 54 |
177.8~279.4 | 689 | 931 | 13 | 285 | 54 |