Call Us Today: +86-731-89903933|info@shunfusteel.com
FacebookLinkedInYouTubePinterestTiktok

P580 Non Magnetic Drill Collar

Home/Non Magnetic Drill Collar/P580 Non Magnetic Drill Collar
P580 Non Magnetic Drill Collar2026-04-17T02:45:33+00:00

Project Description

Introduction to P580 Non Magnetic Drill Collar

P580 non magnetic drill collar austenitic steel bar for MWD LWD directional drilling
P580 high-strength austenitic non magnetic drill collar solid bar stock

P580 is a premium, high-strength austenitic Mn-Cr-N stainless steel specifically engineered for demanding oilfield environments. As a specialized P580 non magnetic drill collar material, its advanced chemical composition delivers exceptional pitting corrosion resistance (PRE ≥ 37) and a guaranteed relative magnetic permeability of less than 1.001. This makes it the ideal choice for MWD LWD applications where magnetic interference must be strictly eliminated.

Through a proprietary cold-working process applied over the full length of the collar, P580 achieves superior mechanical strength, high fatigue resistance, and consistent yield properties required for directional drilling operations. To learn more about our manufacturing capabilities, visit our corporate profile. ShunFu Metal’s advanced composition control and special forging processes ensure this non magnetic stainless steel drill collar material performs reliably under extreme downhole stresses.

Applications in Directional Drilling

As a critical component of non magnetic drill string components, P580 is specifically utilized in downstream products and scenarios where magnetic neutrality and high structural integrity are paramount. The grade supports a wide range of bottom hole assembly (BHA) configurations.

  • MWD/LWD drill collars and sensor housings for directional and horizontal wells
  • P580 slick non magnetic drill collar for standard bottom hole assemblies (BHA)
  • P580 spiral non magnetic drill collar for anti-sticking in high-dogleg severity well paths
  • P580 flex non magnetic drill collar for horizontal wells requiring enhanced flexibility
  • Stabilizer mandrels and non-magnetic subs in drilling engineering
  • Heavy-weight drill pipe (HWDP) non-magnetic pup joints
  • Mining and rock drilling components requiring high fatigue resistance

Specifications & Standards

P580 is strictly regulated under industry standards, ensuring compliance for global oil and gas operations. These specifications guarantee that our drill collar products meet the rigorous demands of modern drilling engineering.

API Spec 7-1
Covers rotary drill stem elements, specifically defining the requirements for non magnetic drill collar P580 API 7-1 spec compliance. Product shapes include solid bars and finished machined drill collars.
ASTM A262
Practices for detecting intergranular corrosion in austenitic stainless steels (Practices A and E), utilized for validating sensitization resistance in test specimens and solid bars.
ASTM E114
Standard practice for ultrasonic straight-beam examination by contact method, governing 100% volumetric inspection for solid bars, hollow bars, and finished collars.

Available Sizes & Delivery Options

ShunFu Metal provides comprehensive dimensional flexibility for P580, covering rolled and forged round bars (up to OD 9 1/2" and larger), forged flat bars, and seamless hollow bars tailored for BTA bored non magnetic drill collar production. We maximize our processing capabilities by utilizing API-standard regularly calibrated heat treatment furnaces, alongside advanced precision machining equipment including BTA deep hole drilling, CNC lathes and milling machines, and long distance gunhole drilling.

Lead Times & Minimum Order Quantities (MOQ) for P580
Order Type MOQ Lead Time
Common Sizes (Ready Stock) Single piece ~7 days
Custom Forged/Rolled Bars 3 tons ~30 days
Small Batch Special Grades 3-5 tons (Induction Furnace) Negotiable
Large Volume Orders 30-60 tons (EAF) Rapid delivery

Chemical Composition

The high-alloyed Mn-Cr-N ranges specific to P580 guarantee its austenitic stability and pitting corrosion resistance. The carefully balanced composition prevents sensitization during warm forging and ensures magnetic permeability remains below 1.001.

Chemical Composition of P580 Non Magnetic Drill Collar (wt%)
Element P580 (wt%)
Carbon max. 0.06
Manganese 22.00 - 24.50
Chromium 22.00 - 24.50
Molybdenum max. 1.50
Nitrogen max. 0.75
Nickel max. 2.50

Melting & Processing Routes

ShunFu Metal offers customizable melting routes for P580 to align with your specific application demands. The standard route utilizes EAF + AOD + LF + VD to ensure baseline purity and decarburization for this stainless alloy. For enhanced cleanliness and homogeneity, ESR or PESR is available.

For the highest demanding aerospace or critical downhole specifications, the VIM + VAR route can be negotiated. Customers are welcome to consult with our metallurgists to select the most cost-effective and technically suitable melting solution for their P580 non magnetic drill collar requirements.

Mechanical Properties

Tested at room temperature, these properties are achieved via a special cold-working process over the full length of the collar. This proprietary processing ensures consistent yield strength and fatigue resistance throughout the entire drill collar body.

Mechanical Properties of P580 Drill Collar Material
Property OD up to 9 1/4" OD 9 1/2" and larger
Yield Strength (min.) 140 ksi / 965 N/mm² 130 ksi / 900 N/mm²
Tensile Strength (min.) 150 ksi / 1035 N/mm² 150 ksi / 1035 N/mm²
Elongation (min.) 20% 20%
Reduction of Area (min.) 50% 50%
Impact Energy (min.) 60 ft.lb / 82 J 60 ft.lb / 82 J
Endurance Strength (N=10⁵, min.) 60 ksi / 414 N/mm² 60 ksi / 414 N/mm²
Hardness (Brinell) 350 - 450 HB 350 - 450 HB

Heat Treatment & Cold Working

The exceptional mechanical properties of the P580 non magnetic drill collar are derived from a specialized two-stage processing route. Specific temperature ranges and soak times are proprietary to ShunFu’s API 7-1 compliant manufacturing processes to ensure optimal austenitic structure and prevent sensitization.

Warm Forging + Quenching
Proprietary controlled warm-forging temperatures followed by rapid quenching. This prevents material sensitization and ensures intergranular corrosion resistance according to ASTM A262.
Full-Length Cold Working
Proprietary cold-working reduction performed at ambient temperature. This achieves the required high yield strength (130-140 ksi) and uniform mechanical properties across the entire collar length.

Surface Finish & Machining

ShunFu delivers fully precision machined non magnetic drill collar P580 products tailored to downhole specifications. We provide comprehensive surface treatments including turning, milling, and CNC precision machining for complex collar geometries. Internal bores are processed via BTA boring and long distance gunhole drilling, achieving exceptional surface roughness (Ra ≤ 0.8 μm) and strict API dimensional tolerances.

To drastically extend fatigue life, connections undergo roller burnishing and shot peened non magnetic drill collar P580 for fatigue resistance processing. For specialized wear protection, we offer laser cladding at a 6-axis machine. External ODs can be finished via grinding or shot peening to Ra ≤ 1.6 μm.

Quality Assurance & Inspection

ShunFu Metal operates under an ISO 9001 and API Q1 certified Quality Assurance System. Pre-production involves strict incoming chemical analysis; in-production monitors forging and heat treatment parameters; and post-production executes rigorous final inspections.

  • 100% volumetric ultrasonic inspection (UT) is performed according to ASTM E114.
  • Magnetic permeability is verified downhole using our proprietary Forster Magnetomat 1.782 probe-testing ("Hot Spot"-test), with printed certification for each collar.
  • Intergranular corrosion resistance is validated per ASTM A262 Practices A and E.
  • We issue EN 10204 3.1 certificates standardly, and 3.2 certificates upon request.
  • Third-party inspections by SGS or TÜV can be seamlessly arranged.

Packing & Maritime Shipping

Black-skin P580 bars are securely fastened with steel wire strapping, ensuring they remain rigid and damage-free during container transport. For bright-surface and precision machined drill collar products, we utilize multi-layer protective wrapping materials to safeguard surface roughness and dimensional accuracy.

All products are coated with heavy-duty anti-rust oil, guaranteeing that the non magnetic stainless steel drill collar remains entirely free from oxidation throughout maritime shipping to the Middle East, Europe, or Southeast Asia.

Frequently Asked Questions

Can you supply P580 non magnetic drill collar to API specification?

Yes, our P580 drill collars strictly meet all requirements of API Spec 7-1 (latest edition). Our manufacturing and testing processes are fully audited under our API Q1 quality management system.

What is the minimum order quantity for P580 non magnetic drill collar?

For standard sizes from our ready stock, you can order a single piece with a 7-day lead time. For custom forged non-mag collars, the MOQ is typically 3 tons with a 30-day lead time.

Do you provide laser clad or BTA bored P580 non magnetic drill collar for MWD LWD tools?

Absolutely. We are equipped with BTA deep hole drilling, long distance gunhole drilling for MWD/LWD sensor housings, and 6-axis laser cladding machines for specialized wear-resistant surface treatments.

How do you guarantee the magnetic permeability and pitting corrosion resistance of P580?

Every collar undergoes 100% "Hot Spot" magnetic probe testing using a Forster Magnetomat, certifying permeability < 1.001. Pitting resistance is guaranteed by the high Cr/N composition (PRE ≥ 37), and intergranular corrosion is prevented by quenching post-warm-forging and verified via ASTM A262 testing.

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners. View more
Cookies settings
Accept
Privacy & Cookie policy
Privacy & Cookies policy
Cookies list
Cookie name Active

Privacy Policy

What information do we collect?

We collect information from you when you register on our site or place an order. When ordering or registering on our site, as appropriate, you may be asked to enter your: name, e-mail address or mailing address.

What do we use your information for?

Any of the information we collect from you may be used in one of the following ways: To personalize your experience (your information helps us to better respond to your individual needs) To improve our website (we continually strive to improve our website offerings based on the information and feedback we receive from you) To improve customer service (your information helps us to more effectively respond to your customer service requests and support needs) To process transactions Your information, whether public or private, will not be sold, exchanged, transferred, or given to any other company for any reason whatsoever, without your consent, other than for the express purpose of delivering the purchased product or service requested. To administer a contest, promotion, survey or other site feature To send periodic emails The email address you provide for order processing, will only be used to send you information and updates pertaining to your order.

How do we protect your information?

We implement a variety of security measures to maintain the safety of your personal information when you place an order or enter, submit, or access your personal information. We offer the use of a secure server. All supplied sensitive/credit information is transmitted via Secure Socket Layer (SSL) technology and then encrypted into our Payment gateway providers database only to be accessible by those authorized with special access rights to such systems, and are required to?keep the information confidential. After a transaction, your private information (credit cards, social security numbers, financials, etc.) will not be kept on file for more than 60 days.

Do we use cookies?

Yes (Cookies are small files that a site or its service provider transfers to your computers hard drive through your Web browser (if you allow) that enables the sites or service providers systems to recognize your browser and capture and remember certain information We use cookies to help us remember and process the items in your shopping cart, understand and save your preferences for future visits, keep track of advertisements and compile aggregate data about site traffic and site interaction so that we can offer better site experiences and tools in the future. We may contract with third-party service providers to assist us in better understanding our site visitors. These service providers are not permitted to use the information collected on our behalf except to help us conduct and improve our business. If you prefer, you can choose to have your computer warn you each time a cookie is being sent, or you can choose to turn off all cookies via your browser settings. Like most websites, if you turn your cookies off, some of our services may not function properly. However, you can still place orders by contacting customer service. Google Analytics We use Google Analytics on our sites for anonymous reporting of site usage and for advertising on the site. If you would like to opt-out of Google Analytics monitoring your behaviour on our sites please use this link (https://tools.google.com/dlpage/gaoptout/)

Do we disclose any information to outside parties?

We do not sell, trade, or otherwise transfer to outside parties your personally identifiable information. This does not include trusted third parties who assist us in operating our website, conducting our business, or servicing you, so long as those parties agree to keep this information confidential. We may also release your information when we believe release is appropriate to comply with the law, enforce our site policies, or protect ours or others rights, property, or safety. However, non-personally identifiable visitor information may be provided to other parties for marketing, advertising, or other uses.

Registration

The minimum information we need to register you is your name, email address and a password. We will ask you more questions for different services, including sales promotions. Unless we say otherwise, you have to answer all the registration questions. We may also ask some other, voluntary questions during registration for certain services (for example, professional networks) so we can gain a clearer understanding of who you are. This also allows us to personalise services for you. To assist us in our marketing, in addition to the data that you provide to us if you register, we may also obtain data from trusted third parties to help us understand what you might be interested in. This ‘profiling’ information is produced from a variety of sources, including publicly available data (such as the electoral roll) or from sources such as surveys and polls where you have given your permission for your data to be shared. You can choose not to have such data shared with the Guardian from these sources by logging into your account and changing the settings in the privacy section. After you have registered, and with your permission, we may send you emails we think may interest you. Newsletters may be personalised based on what you have been reading on theguardian.com. At any time you can decide not to receive these emails and will be able to ‘unsubscribe’. Logging in using social networking credentials If you log-in to our sites using a Facebook log-in, you are granting permission to Facebook to share your user details with us. This will include your name, email address, date of birth and location which will then be used to form a Guardian identity. You can also use your picture from Facebook as part of your profile. This will also allow us and Facebook to share your, networks, user ID and any other information you choose to share according to your Facebook account settings. If you remove the Guardian app from your Facebook settings, we will no longer have access to this information. If you log-in to our sites using a Google log-in, you grant permission to Google to share your user details with us. This will include your name, email address, date of birth, sex and location which we will then use to form a Guardian identity. You may use your picture from Google as part of your profile. This also allows us to share your networks, user ID and any other information you choose to share according to your Google account settings. If you remove the Guardian from your Google settings, we will no longer have access to this information. If you log-in to our sites using a twitter log-in, we receive your avatar (the small picture that appears next to your tweets) and twitter username.

Children’s Online Privacy Protection Act Compliance

We are in compliance with the requirements of COPPA (Childrens Online Privacy Protection Act), we do not collect any information from anyone under 13 years of age. Our website, products and services are all directed to people who are at least 13 years old or older.

Updating your personal information

We offer a ‘My details’ page (also known as Dashboard), where you can update your personal information at any time, and change your marketing preferences. You can get to this page from most pages on the site – simply click on the ‘My details’ link at the top of the screen when you are signed in.

Online Privacy Policy Only

This online privacy policy applies only to information collected through our website and not to information collected offline.

Your Consent

By using our site, you consent to our privacy policy.

Changes to our Privacy Policy

If we decide to change our privacy policy, we will post those changes on this page.
Save settings
Cookies settings
Go to Top