low carbon steel CNC milling parts
Construction machinery parts


Carbon Steel Q345B


±0.15 mm


Construction machinery


Heat treatment (HRC 55-60)



low carbon steel CNC milling parts - Description

1. Item Name: High carbon steel CNC milling parts – Construction machinery parts
2. Material: carbon steel Q345B
3. Craftsmanship:  3-Axis CNC milling Services
4. Finish: Heat treatment – Carburizing
5. Manufacturing Service: OEM or ODM available.
6. Specification: Products can be produced as per customer’s drawings.
7. Tolerance: Can keep +/-0.01mm, high accuracy .
8. Drawing Software: CAD/Solidworks/CAXA/Cimatron E.9
9. Price: Real Instant Factory Price
10. Packing: Inner with plastic bag and PE Foam, outer with carton. We can pack as per customer’s requirement.

low carbon steel CNC milling parts - projects

Large construction machinery often wears and damages robotic arms or other parts during construction. The replacement of mechanical parts is a difficult problem encountered by many companies. The cost is very high, and it is difficult to find customized parts sizes.

Customers from Israel submitted CNC milling parts for high carbon steel. It is used to replace the construction machinery parts damaged during the operation, and is applied to the “gripper” parts of the equipment.

The product adopts low carbon steel Q345B material. First, the forging raw material is processed to increase the overall density of the material, and the high-precision CNC wire cutting equipment is used to cut the surface to ensure that the material will not be overheated and deformed or bent during the processing. 

In order to improve the durability and hardness of the product, it is necessary to heat treat the processed semi-finished product. The vacuum genuine product can efficiently increase the hardness of metal materials such as carbon steel, which can reach HRC55-60. It is widely used in the vulnerable parts of mechanical equipment or shafts. product. After heat treatment, the material will be slightly deformed, which is caused by the internal stress of the material after being heated. We use precision CNC Milling equipment to precisely process the entire product to ensure that all dimensions meet the installation of the equipment and meet all the dimensions of the customer. Claim.

This product is divided into many styles and applied to different machinery and equipment. Mulan MFG focuses on the customized manufacturing of carbon steel CNC milling parts, and develops detailed one-stop manufacturing solutions according to different product requirements. Including: cnc milling services, CNC wire cutting services, metal material heat treatment services, customized metal parts surface treatment services, etc.

Contact our Carbon steel CNC milling parts expert team, 7*24 hours technical support service, real-time online quotation from the real factory.

low carbon steel CNC milling parts - The properties of Q345 steel

Q345 steel is a Chinese national standard low-alloy high-strength structural steel with a material density of 7.85 g/cm3, a tensile strength of 470-630 Mpa, a yield strength of 345 MPa, and its performance is better than Q235. GB/T 1591 2008, Q345 material has 5 quality grades Q345A, Q345B, Q345C, Q345D and Q345E. Q345 steel has good weldability and cold workability Q235A (GB)-global equivalent grade-steel grade Q235A (China, GB) -European (EU, EN) and global steel equivalent grades. These comparison tables are only used to indicate the closest nominal equivalent grade.

For each material, the source standard should always be checked for a specific purpose. Equivalent to Q235D, Q235 steel characteristics and application data sheet and specifications Q235 steel equivalent Q235 steel is an ordinary carbon structural steel widely used in China, and the Q235 material in the Chinese standard GB/T 700 is divided into 4 quality levels Q235A, Q235B, Q235C and Q235D; The density of the steel is 7.85 g/cm3, the tensile strength is 370-500 MPa; the yield strength is 235 MPa (data applies to steel bars or steel plates with a diameter of 16mm). Since it is a low carbon steel, it can be used directly without heat treatment.

Click here for more information on low carbon steel materials。

  1. “How to choose suitable low carbon steel materials according to product design”
  2. “The difference between low carbon steel and high carbon steel”
  3. “Which products are made of low carbon steel”
  4. “The heat treatment process of low carbon steel”

Why Choose Us


Reliable Quality


Competitive Price




On-Time Delivery


Excellent After-Sales


Experienced Team

Q1:Are you a low carbon steel CNC milling parts manufacturer?
A1:Yes, we are a medium size ISO13485/ISO9001 certificated manufacturer with a wide range of advanced equipment.Warmly welcome to visit our factory so that you can make sure this point.
Q2:What is the MOQ of low carbon steel CNC milling parts?
A2:Minimum Order Quantity is one piece/set, related prices should be quoted according to Samples Production cost, however as you know the bigger quantity, the more competitive price.
Q3:Can you do the mass production?
A3:Yes,we are a factory which can provide service of precision CNC machining, rapid prototyping, wire cutting, tooling building and etc.After you confirm the samples, we can start mass production.It is very convienient for customers to choose us as a one-stop solution supplier.
Q4:Which 3D drawing files should go with the machines?
A4:CNC machines only read *IGS,*STP,*STEP,*IGES,*X-T format, for *STL format,it goes with 3D printer and SLA.
Q5:Is it possible to know how are my products going on without visiting your company?
A5:We will offer a detailed production schedule and send weekly reports with pictures or videos which show the machining progress.
Q6:Will my drawings be safe after sending to you?
A6:Yes, we will keep them well and not release to third party without your permission.
Q7:What shall we do if we do not have drawings?
A7:Please send your sample to our factory,then we can copy or provide you better solutions.Please send us pictures or drafts with dimensions(Length,Hight,Width),CAD or 3D file will be made for you if placed order.
Table of Contents
    Add a header to begin generating the table of contents
    Scroll to Top