Forged Alloy Steel Round Bar
- HHF
- Henan
- 35-45days
- 200pcs per month
Forged alloy steel round bar is one type of our products. We (HHF) own forging workshop, rough machining workshops, heat treatment workshop amd final machining workshops . And we also have a National Level II lab. Accordingly, the whole progress and quality can be controlled very well.
Our forged alloy steel round bars are made of 4145H, 4140, 4340 etc materials.
Manufacturing time( quick) is also our big advantage for steel round bar.
Our national level II lab controls the quality.
Product Introduction
Forged Alloy Steel Round Bar
Our forged alloy steel round bar are made of 4145H, 4140, 4340 etc materials. Materials can be as per customers' requirements. The diameter we can do is from 100mm-1200mm.
Parameter
chemical composition of 4140:
| C | Si | Mn | P | S | Cr | Ni | Mo | Al | Cu | H2 |
0.38-0.44 | 0.15-0.35 | 0.75-1.00 | <0.020 | <0.030 | 0.80-1.10 | <0.25 | 0.15-0.25 | 0.02-0.05 | <0.25 | <2PPM |
Mechanical properties:
| Tensile strength (MPa) | Yield strength (MPa) | Elongation(%) | rate of reduction in area(%) | Impact energy Akv(J) | hardness |
>=1080(110) | >=930(95) | >=12 | >=45 | >=63 | <=229HB |
The materials can be selected according to customer requirements.


About Us
Henan Zhongyuan Heavy Forging Co., Ltd. (HHF) is one of the nationally recognized high-tech enterprises. It has four specialized divisions, i.e., the forging division, heat treatment division, petroleum equipment division, and mechanical processing division. The company has set up a provincial engineering technology research center for oil drilling tool stabilizers, a physical and chemical laboratory, and a municipal R&D center.

Charcoal rolled steel bars, suitable for use in the production of heavy machine parts, are a major part of HHF's production to meet the heavy industry market. We offer end-to-end production, starting with dedicated forging, rough machining, heat treatment, and final machining workshops, which helps us monitor quality throughout the process from raw material to finished product. Our National Level II laboratory is one of our main resources that enable us to maintain high standards in inspection and testing, resulting in safe and stable products being delivered at various stages of the production process.
Our stock of forged alloy steel round bars mainly includes first-class materials 4145H, 4140, 4340, and other alloy steels, which have been produced after comprehensive consideration of achieving highest strength, good ductility, and superior wear resistance and hardenability. These materials are intended for highly challenging situations and have broad application areas such as oil and gas, heavy machinery, automotive, and power generation industries.
Besides product excellence, HHF can also be counted on for prompt delivery. Immediate response to order placement and accurate scheduling of our daily plans and heavy use of internal capabilities, mainly contributing in avoiding external bottlenecks, have allowed us to provide quality products on time and help customers with their emergencies and also eliminating their project delays and idle time.

Our Exhibition
AIMEX - Asia Pacific's International Mining Exhibition
We were honored to be part of AIMEX, one of the most significant mine exhibitions in Asia-Pacific region at 2019. Our representatives attended the exhibition in Australia where we made use of a great opportunity not only to get in contact with leading figures in the industry but also to present our forging capabilities as manufacturers of heavy castings, besides having a chance to communicate with many of our clients and suppliers.
Even though we didn't have our booth, our sales and engineering departments were physically present to participate. The core of our trip was to maintain and consolidate our partnership with the old clients, identify and evaluate the potential prospects, and obtain up-to-date information on the state and the direction of the mining industry in Asia-Pacific region. This event was one of the most important occasions for the representatives of the mining world to interact directly.
This experience confirms our willingness to support the mining industry worldwide. Moreover, it reflects our continuous desire to learn about and meet the requirements of our clients in one of the leading regions for mining activity.
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.









