Alloy Forged 1.7225 42CrMo4 Material QT Steel Round Bar

Alloy Forged 1.7225 42CrMo4 Material QT Steel Round Bar

1: 1.7225 Steel Introduction

1.7225 is a kind of steel with high strength, wear-resistant, impact-resistant and corrosion-resistant properties. The steel is mainly composed of carbon, chromium, molybdenum and silicon and other elements, of which chromium content is higher, can improve the corrosion and oxidation resistance of steel, molybdenum can increase the strength and wear resistance of steel, while also containing a small amount of manganese, sulfur, phosphorus and other elements, which can improve the processing performance of the steel and mechanical properties.1.7225 steel processing is more difficult, need to apply certain skills and technology, because of the high hardness and toughness of the steel, so need to use more advanced processing equipment and technology. Because of the high hardness and toughness of the steel, it is necessary to use more advanced processing equipment and technology. Generally use the heat treatment process to improve the performance of steel, through heating, cooling and other processes to change the organizational structure and hardness of steel.

1.7225 Steel Stock in Warehouse

2: 1.7225 Quality Standard

1.7225 steel according to EN 10250.

3: 1.7225 Steel Equivalent

4: 1.7225 Steel Chemical Composition

5: 1.7225 Steel Mechanical Properties

The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.

6: Qilu Company Profile

Hunan Qilu was engaged in steel exporting since 2008 year, the former was the sales company for Qilu Special Steel co.,ltd which was founded in 1986 year. Now Hunan Qilu Metal is one of most professional steel manufacturer and exporter in China. We already exported steel material to Germany, UK, Ireland, Greece, Italy, Poland,Belgium, Estonia, Latvia, Spain, France, Netherlands, Portugal, Czech republic, Finland, Russia, Belarus, Canada, Mexico, Brazil, Chile, Colombia, Peru, Argentina, Venezuela, Thailand, Indonesia, Vietnam, Singapore, Malaysia, Philippines, UAE, South Africa, Zambia, Australia etc.

7: Production Equipment

The company owns advanced special steel smelting facilities and forging processing equipment, the main steel-making equipment include 2 set of 50t and 25t ultra-high power electric arc furnaces, 2 set of 60t and 30t LF refining furnaces, 2 set of 60t and 30t vacuum degassing refining furnace. 4 sets of 1-20t electroslag re-melting furnaces.

The main forging equipment mainly include:3 sets of 3t 5t and 8t electro-hydraulic hammers, 3 sets of high-speed forging units of 1600t, 2000t and 4500t respectively.

8: Our Company Certificate

We already passed ISO 9000 : 2015 certificate of quality system, and we could supply steel forging material with all kinds of Classification Society Certification, such as ABS, ,DNV, BV, CCS etc. We also supplied steel material to oil industry with API certificate, such as API20B, API6A etc.

9: Stock&Warehouse

Besides forging material, we also supply hot rolled material from Dongbei special steel, Tiangong, Changcheng special steel, Lihuai Special Steel, Laisteel, Juneng steel, Yongsteel, Xinxin steel, Shijiazhuang steel etc. We have two warehouses for hot rolled material. Further processing such as heating treatment, rough machining and milled are also provided by us.

10: 1.7225 Steel Overviews

11: 1.7225 Steel Tolerance

12: Packing& Delivery

For the delivery, we will choose LCL, FCL and Bulk carrier according to order quantity. Usually if the quantity is less than 10tons, we will recommend LCL. If the quantity is more than 100tons, we will recommend bulk carrier. Usually FCL will be the most common for delivery.

In order to better ensure the safety of your goods, we will provide professional, environmentally friendly, convenient and efficient packaging services. Such as pallet, wooden box, package with woven bag etc.

13: 1.7225 Steel Heat Treatment

Normalizing

First, the steel needs to be heated to about 950℃~1000℃ and then cooled naturally in air. This process refines the internal structure of the steel and forms a martensitic organization, which increases the hardness and strength of the steel, but also increases the brittleness and makes it easy to fracture. 

Quenching

Subsequently, the steel is quenched at a temperature of 820-850°C to increase its hardness and wear resistance. 

Tempering

Tempering is required to reduce the brittleness of the steel and to increase its toughness and malleability. Tempering involves heating the steel to about 200°C to 400°C and then cooling it naturally in air. This step further refines the grain and makes the martensitic organization more stable, while reducing the hardness and strength of the steel.

14: 1.7225 Steel Application

1.7225 steel is used in the machinery manufacturing industry, it is commonly used in the production of high-precision parts such as cutting tools, cold/hot deformation molds and measuring tools. In addition, it is also widely used in the manufacture of key components such as pistons, valves and valve seats for diesel fuel pumps, as well as cutlery for medical equipment, cutting tools, machine parts, pneumatic hammer tools and piercing tools.

15: Delivery Condition

For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed or QT, black surface or rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed or QT, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed or QT, black surface.