Project Description
AMAGNIT 501 Non-magnetic Steel
What is AMAGNIT 501?
Amagnit 501 are chromium manganese austenitic low carbon alloy steels obtained by VOD process, and rotary hammer warm forging process combining chemical analysis and temperature / time cycle.
Amagnit 501 are resistant to stress corrosion cracking with high mechanical properties, low magnetic permeability and no tendency to galling.
The AMAGNIT 501 is forged and available in round steel bar in the peeled + drilled. The AMAGNIT 501 was melted in an electric arc furnace and can also be supplied as an ESR.
Application of AMAGNIT 501
Design for most drill string components such as drill collars, MWD and LWD housings, compressive service drill pipe (flex collars) subs, stabilisers, etc. this material meets the stringent requirements of today’s drilling and directional drilling industry.
Chemical Component of AMAGNIT 501
| C | Mn | Cr | Mo | Ni | N2 |
| 0.05 max | 18.5-22 | 13-15 | 1 max | 2 max | 0.25-0.50 |
Mechanical property of AMAGNIT 501
| OD range | Minimum yield strength |
Minimum tensile strength |
Minimum elongation |
Minimum reduction of area |
| 3 1/2 to 6 7/8 | 120 000 Psi | 135 000 Psi | 25% | 50 % |
| 7 to 11 | 112 000 Psi | 130 000 Psi | 25% | 50 % |
| Over 11″ | 100 000 Psi | 120 000 Psi | 25% | 50 % |
(room temperature, ASTM A 370) Surface hardness: 277-350 HB
Magnetic Properties of AMAGNIT 501
Non magnetic properties are certified at delivery and remain constant during the life time of the products.
Magnetic Permeability
Max : 1.010
Average : 1.005
Magnetic Field Gradient (hot spots)
Max : 0.05 micro-tesla / 100 mm
Corrosion Resistance of AMAGNIT 501
The structure is austenitic, free of ferrite and precipitation at the grain boundary. The susceptibility to intergranular attack is carried out according to ASTM A 262 practice E. No intergranular cracks should be detected. Each bar is tested.
Amagnit 501 has passed all the main corrosion tests in chloride solutions imposed by the Directional Drilling Companies:
- Constant Load tests
- Slow Strain Rate Tests
- C Ring Tests to ASTM G 36 / G 38
- Pitting Corrosion
A compressive layer is applied to the bore of the collars to increase the resistance to stress corrosion cracking.
We are committed to integrate steel resources in china and serve the global steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise before. In the aspect of resources and information, we have established cooperative relationship with nearly hundred enterprises, either state-owned or private owned in China.
What’s more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want. We provide preffesional one-stop service to the Contractors of follows project:
- Oil and Gas Pipeline Construction
- Onshore and Offshore
- Boiler Manufacturers
- Oil Refining Equipment
- Petroleum and Chemical Plant Construction
- Fire Protection
- Heating & Air Conditioning
Our ability to purchase materials directly from leading mills at the best possible price will give you the competitive edge. This coupled with a skilled workforce dedicated to embracing the demands of the markets we serve. Just give us a call +86-731-89903933.
