Forged Steel Mandrel For Seamless Tube
- HHF
- Jiyuan, Henan
- 2 months
- 200pcs per month
Material for Mandrel : H13 or according to the customer's requirement
Application of steel mandrel : Mainly used for seamless steel pipe piercing technology
Production equipment for forged mandrel : We can do forging , heat treatment , rough machining and final machining by our own factory
Inspection for forgd steel mandrel for seamless tube : We have professional inspector and a physical and chemical laboratory construction of National Grade 2 standards
Product Introduction
Name : Forged steel mandrel for seamless tube
The forged mandrel mainly used for seamless steel pipe piercing technology
Material : We purchase steel ingot from famous steel mill
Prodution process for steel mandrel : We can do forging , heat treatment and machining by our own factory .
As to after-sale services for forged mandrel : from our company side, we would like to provide our best service to you. If any products are with quality problems, we will replace at our expense. For your benefit, we would like to establish a clear quality inspection criterion at the beginning stage of the project.We also have an CRM system to keep work history with all customers to follow up your overall experience with us



Chemical Compososition (m%)
| Grade | C | Si | Mn | Cr | Mo | P | S | Ni |
| 40CrNiMoA | 0.38-0.43 | 0.17-0.37 | 0.60-0.80 | 0.70-0.90 | 0.17-0.25 | ≤0.025 | ≤0.025 | 1.35-1.55 |
Hardness Requirements: 280-320 HB
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 is about 150 mu large, equivalent to 100,000 square meters. At the company's production base, there are 3 sets of the factory-style drop forging lines on a large scale (with the basic equipment being a 10,000 ton hydraulic press), 2 advanced mold forging production lines and some big CNC machining centers, heat treating lines, the laboratory of second class national system is quite well equipped too.
About 500 employees are engaged by the company at the moment out of which more than 50 are dedicated researchers who, with their high-level engineers and technical specialists are engaged in the development of new materials, methods and technologies.
In addition to being certified with the basic American API Q1 standard and licensing with the American standards on API 7-1 for both drill collars and stabilizers, the company also possesses an approval by the Chinese CSSC system as for as international certificates the company is certified with ISO 9001:2008 and ISO/TS 29001.

Long-term forging supply relationship of the company is with top-tier domestic and global enterprises in various sectors such as: power generation including wind, water and thermal power, mining machinery industry, ship-building and heavy plant. In fact, some leading Chinese companies such as CITIC HEAVY INDUSTRIES, First HEAVY INDUSTRIES, TAIYUAN HEAVY INDUSTRIES, Goldwind and Envision Energy have been among the customers of the Company's forgeries. Also, a number of the company's forging products were used by the major international manufacturers of mining equipment, which includes Joy Global, Japan Mining, Hitachi Mining, Komatsu and Caterpillar.
Apart from our major Chinese customers, our products have reached customers in more developed markets, as we've exported our goods to more than 20 countries and regions, such as Germany, the United States, Australia, India, Russia, Brazil, South Africa, South Korea, and Japan. The world is our stage!
FAQ
1. How soon would you give the quotation?
In general, it is up to three days. We just need to find out your needs and main sizes.
2. How do you assure the quality?
A. We have a quality control department. B. We shall carry out one sample run and another small batch production run after the first sample order before the mass 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.










