Forged Die Block Mold Steel
- HHF
- HENAN
- 45DAYS
- 200pcs per month
Forged Die Block Mold Steel can be manufactured as per customers' drawings. And our technologists also can design the drawings for customers.
Quality first is our principle. Our national level II lab can control the quality( chemical composition inspection, mechanical properties inspection,hardness inspection.
Product Introduction
Chemical composition and properties of Forged Die Block Mold Steel:
sequence number | Material designation | Chemical composition ( % ) | annealing HardnessHB | Tempering hardness HRC | |||||||||||
C | Si | Mn | Cr | Mo | P | S | Ni | V | With | To the | |||||
1 | 5CrNiMo | 0.50-0.60 | ≤ 0.40 | 0.50-0.80 | 0.50-0.80 | 0.15-0.30 | ≤ 0.025 | ≤ 0.025 | 1.40-1.80 | / | ≤ 0.20 | / | 197-241 | 53-58 | |
2 | H13 | 0.32-0.45 | 0.80-1.20 | 0.20-0.50 | 4.75-5.50 | 1.10-1.75 | ≤ 0.025 | ≤ 0.025 | / | 0.80-1.20 | ≤ 0.20 | / | ≤ 235 | ≥ 60 | |
3 | D2 | 1.40-1.60 | 0.10-0.60 | 0.20-0.60 | 11.0-13.0 | 0.70-1.20 | ≤ 0.025 | ≤ 0.025 | / | 0.50-1.10 | ≤ 0.20 | / | ≤ 255 | ≥ 59 | |
4 | 718 | 0.32-0.40 | 0.20-0.80 | 1.00-1.50 | 1.70-2.00 | 0.25-0.40 | ≤ 0.025 | ≤ 0.025 | 0.85-1.15 | / | ≤ 0.20 | / | Pre-hardened 30-35 HRC Hardened 35-40 HRC | ||
5 | 4Cr13 | 0.36-0.45 | ≤ 0.60 | ≤ 0.80 | 12.0-14.0 | / | ≤ 0.025 | ≤ 0.025 | / | / | ≤ 0.20 | / | ≤ 201 | ≥ 50 | |
6 | 4Cr16Mo | 0.33-0.43 | ≤ 1.00 | ≤ 1.00 | 15.0-17.0 | 1.00-1.30 | ≤ 0.025 | ≤ 0.025 | / | / | ≤ 0.20 | / | ≤ 250 | ≥ 49 | |
7 | NAK 80 | 0.05-0.18 | 0.15-1.00 | 1.0-2.0 | 0.20-0.40 | 0.20-0.40 | ≤ 0.025 | ≤ 0.025 | 2.30-3.50 | / | 0.70-1.50 | 0.50-1.50 | 37-43HRC | Hard aging Without quenching | |
8 | XFP 80 | 0.12 | - | 1.80 | - | 0.30 | ≤ 0.025 | ≤ 0.025 | 3.0 | / | 1.0 | 1.0 | 37-43HRC | Hard aging Without quenching | |
Technical requirements for die steel
1. The allowable deviation of the chemical composition of steel should meet the requirements of GB222-84. The smelting method of electric furnace + vacuum refining or vacuum refining + electroslag remelting shall be specified in the contract.
2. The die steel adopts the GB/T6402-1991 standard for ultrasonic flaw detection, and the result shall not have dense defects larger than the equivalent diameter of Ø2mm. A single scattered metallurgical defect is allowed, of which no more than 3 of the equivalent diameter of Ø2-3mm, and only one of the equivalent diameter of Ø3-4 are allowed.



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.




