Нефтяная буровая сталь
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Спецификация, Химическая и механические характеристики
Our drill steel blooms produced with continuous casting and rolling process flow per the United States API SPEC7 standard, with grades of AISI4145H (for drill collars) and SAE4137 (for drill pipe joints) being widely used in major oilfields across China and exported to North America. They have been highly appraised for their high purity and balanced composition and performance.
Our main end users include Daqing Oilfield, NOV Grant Prideco, Smith International, Baker Hughes, Heyuan Alloys, World-Rise Petroleum Technology, Shanxi Fenglei Drilling Tools Co., Jiangsu Shuguang Huayang Drilling Tool Co., etc.
Executive standards / Typical steels / Specifications
|
Implementation of standards |
Typical steels |
Технические характеристики изделия |
|---|---|---|
|
Стандарты ASTM User Agreement or by mutual agreement |
SAE4145H、SAE4137H SAE4145HM、SAE4137HM 37CrMnMoA、ASE4340 |
Round rolled:Φ10~250 Round Forging:Φ100~950 Fang rolled:□80~200 |
Описание:
（1）Delivery state: hot-rolled, normalized, annealed, quenched and tempered.
（2） Listed specifications are only typical grades; products of required specifications can be developed/produced per international, Chinese or industry standards, or based on agreements with customers.
