基本信息
| 出生地 | Shanxi China (Mainland) |
|---|---|
| 牌子的名字 | TYHS |
Brief Introduction Made of AISI4145H alloy steel, the end, drive section and connection of the Kelly are machined and inspected according to API requirements. Size Range Square 2-1/2”——6” Hexagonal 3”——6” Mechanical Properties BottomODYield Strength Tensile strength ElongationHardnessBrinellHBImpactAKVσb(MPA)σs(MPA)δ4(%)HBΑκ(J)85.7——174.6≥758≥96513≥28554177.8≥68993013≥28554 Usage The Kelly is the drive section of the whole stem.
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