Non-magnetic Of High Strength Drill Collars
- HHF
- HENAN
- 45DAYS
- 200pcs per month
We has been certified by API Q1 Quality Management System,License of Using Official API 7-1 Monogram.
We follow the Quality Policies'' Keep improving,Produce perfect machinery;Pursue excellence,Create First-Class Brand.''
Non-magnetic Of High Strength Drill Collars are widely welcomed by more than twenty countries as following:United States,Canada,Australia,France,Russia,Middle East,Brazil and Singapore etc.
Our Nationl leve II lab controls the quality.
Product Introduction
Non Mag Drill Collar Non Mag Drill Stabilizer
Chemical composition
Grade | Chemical composition and its content % | ||||||
C | Si | Cr | Mn | Ni | Mo | N | |
W-1 | ≤0. 08 | ≤ 0.8 | 13. 5 ～ 16.5 | 1 6.0 ~ 18.5 | 1.0 ～3.0 | 0. 4 0 ~ 0. 85 | 0.2 5 ~ 0. 40 |
W-2 | ≤ 0.0 3 | ≤ 0.8 | 1 3 ～ 1 6 | 18.5 ~ 2 2 .0 | 1.0 ～3.0 | 0.4 ～0.80 | 0. 3 0 ~ 0. 45 |
W-3 | ≤ 0.0 3 | ≤ 0.8 |
16.5 ～18.5
| 18.5 ~ 2 2 .0 | 1.0 ～3.0 | 0.4 ～0.80 | 0. 50 ~ 0. 80 |
Mechanical properties
Grade | Outer diameter range | Yield Strength | tensile strength | Elongation A % | Charpy impact work | Hardness ( HB ) | |||
㎜ | MPa | ksi | MPa | ksi | 21℃ | -25°C | |||
W-1 | 79.4 -174.6 | ≥758 | ≥110 | ≥ 827 | ≥ 120 | ≥2 0 | ≥ 85 | ≥ 40 | 2 85 - 400 |
177.8-279.4 | ≥6 89 | ≥100 | ≥ 758 | ≥ 110 | |||||
W-2 | 79.4 -174.6 | ≥827 | ≥120 | ≥896 | ≥130 | ≥25 | ≥ 1 50 | ≥ 40 | 285-365 |
177.8-279.4 | ≥758 | ≥110 | |||||||
W-3 | 79.4 -174.6 | ≥965 | ≥140 | ≥1034 | ≥150 | ≥20 | ≥ 100 | ≥ 40 | 300-400 |
HHF has obtained certification under the API Q1 Quality Management System and holds the license for the official use of the API 7-1 Monogram, which authorizes the company to manufacture drill collars and stabilizers in full compliance with API (American Petroleum Institute) standards. This dual certification ensures that all products are developed, produced, and inspected in alignment with internationally recognized quality, safety, and reliability protocols.
The company is guided by a clear quality mission: "Keep improving, produce perfect machinery; Pursue excellence, create a first-class brand." This principle shapes HHF’s commitment to continuous enhancement in process control, manufacturing precision, and customer satisfaction, positioning the company as a leading manufacturer in the drilling and forging sector.
Among its core product offerings, HHF’s Non-Magnetic High Strength Drill Collars have gained extensive recognition and are widely used in markets across the globe. These products are trusted by operators and service providers in more than twenty countries and regions, including the United States, Canada, Australia, France, Russia, the Middle East, Brazil, and Singapore. Their reliability in demanding drilling environments has established HHF as a preferred supplier for high-performance, non-magnetic drilling tools.
To ensure that every product meets stringent quality standards, HHF operates an in-house National Level II laboratory. Through a comprehensive inspection protocol that includes chemical composition analysis, mechanical properties testing, and hardness inspection, the laboratory maintains rigorous oversight of the entire production process. This enables HHF to deliver consistently high-quality products that meet both customer specifications and international regulatory requirements.
About Us
Henan zhongyuan Heavy Forging Co.,Ltd(HHF) founded in 2006, the company has accumulated nearly 20 years of deep professional experience and technological expertise in the field of heavy-duty forging.
The factory covers an area of approximately 150 mu (about 100,000 square meters). The company operates 3 large-scale open-die forging production lines (with core equipment including 10,000-ton hydraulic presses), 2 modern die forging production lines, along with supporting large-scale CNC machining centers, heat treatment lines, and a well-equipped National Class II laboratory. The company has an annual production capacity of 50,000 tons for large open-die and die forgings (with the ability to produce single pieces weighing over 30 tons).
The company currently employs nearly 500 people, including a dedicated R&D team of over 50 professionals, consisting of senior engineers and technical experts focused on developing new processes, materials, and technological innovations.
Its quality management system is backed by multiple certifications, including the American API Q1 standard, API 7-1 licensing for drill stabilizers and drill collars, CSSC system approval, and international accreditations such as ISO 9001:2008 and ISO/TS 29001.
The company has long provided core forgings to renowned enterprises in both domestic and international markets, spanning industries such as energy (wind, hydro, and thermal power), mining machinery, shipbuilding, and heavy equipment. Its client portfolio includes major domestic companies like CITIC Heavy Industries, China First Heavy Industries, Taiyuan Heavy Industry, Goldwind, and Envision Energy, as well as global mining equipment manufacturers such as Joy Global, Komatsu, and Caterpillar.
The company's products are consistently exported to more than 20 countries and regions, including Germany, the United States, Australia, India, Russia, Brazil, South Africa, South Korea, and Japan, serving markets worldwide.
FAQ
1.Wha's your quote time?
Normally, it is up to 3days. We need to understand your requirements and critical dimensions.
2.How is quality controlled?
A. We have a dedicated QA team. B. We shall do one sample run, then a small batch run before mass order.For a sample order.
3.Can I come and visit you?
Yes, of course. We are pleased to welcome you to visit our company and discuss technical details and requirements with our team.
4.What's the production lead time?
Our pruction progress is from forging, rough machining ,Q+T to final machining.Itis usually 45days.
5.what are your payment terms?
We typically ask for 30% down payments to launch production, 70% balance before delivering goods.
