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About UsHenan Zhongyuan Heavy Forging Co., Ltd. (HHF) is a high-tech enterprise. It comprises five production subsidiaries—forging, heat treatment, petroleum equipment, machining, and electroslag remelting—as well as a provincial-level engineering technology research center for petroleum drill stabilizers, a physicochemical laboratory, and a municipal-level technology R&D center.
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Product CenterThe company manufactures drill collars, non-magnetic drill collars, drill pipes, non-magnetic drill pipes, oilfield drill rods, mining drill rods, reamers, pump heads, as well as various wheel axles, ship propeller shafts, steam turbine shafts, motor shafts, and cast pipe molds.
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News CenterWe provide you with a wide range of industry news, product insights, and more, helping you stay abreast of market trends and keep pace with the pulse of the industry.
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Service SupportOur company’s products are highly trusted and well-received by customers thanks to their superior quality, competitive pricing, solid reputation, and comprehensive after-sales service.
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Contact UsCrafted with meticulous attention to detail, the stabilizer is a one-stop intelligent manufacturing solution for large forged components.
AISI 4140
Chemical composition:
| C | Yes | Mn | P | S | Cr | Ni | Mo | Al | Cu | H2 |
|
0.38-0.44 |
0.15-0.35 |
0.75-1.00 |
< 0.020 |
< 0.030 |
0.80-1.10 |
<0.25 |
0.15-0.25 |
0.02-0.05 |
<0.25 |
<2PPM |
Mechanical Properties:
|
Tensile strength (MPa) |
Yield Strength (MPa) |
Elongation (%) |
Percentage of Reduction in Area (%) |
Impact energy Akv (J) |
Hardness |
|
>=1080(110) |
>=930(95) |
>=12 |
>=45 |
>=63 |
<=229HB |
Materials can be selected according to customer requirements.
Keywords:
Hollow tube
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Engaged in the research and development, manufacturing, sales, and service of petroleum equipment and large-scale precision forgings.
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