The GB/T 34109 42CrMo Thermal Expansion Seamless Steel Tubes are specifically designed for use as drill rods in rotary digging machines. These tubes offer exceptional thermal expansion properties, ensuring their reliability in demanding drilling applications. In this article, we will explore the material, specifications, key features, chemical composition, mechanical properties, steel grade, application, and potential alternative grades of these steel tubes.
Material Type | Seamless Steel Tubes |
---|---|
Alloy | 42CrMo |
Property | Value |
---|---|
Standard | GB/T 34109 |
Outer Diameter (mm) | As per requirements |
Wall Thickness (mm) | As per requirements |
Length (mm) | Customizable |
Surface Finish | Polished or as specified |
Heat Treatment | Annealed, Normalized, or Quenched and Tempered |
Feature | Description |
---|---|
Exceptional Thermal Expansion | Designed to withstand high-temperature environments, ensuring drilling precision. |
High Strength and Durability | 42CrMo alloy provides excellent mechanical properties, ensuring long-lasting performance. |
Customizable Dimensions | Available in various sizes to meet specific drilling requirements. |
Surface Finish Options | Choose from polished or as specified surface finishes. |
The chemical composition of GB/T 34109 42CrMo Seamless Steel Tubes is as follows:
Element | C | Si | Mn | P | S | Cr | Mo |
---|---|---|---|---|---|---|---|
Percentage | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | 0.90-1.20 | 0.15-0.25 |
The mechanical properties of these steel tubes are crucial for their performance in drilling applications:
Property | Value |
---|---|
Tensile Strength (MPa) | ≥1080 |
Yield Strength (MPa) | ≥930 |
Elongation (%) | ≥12 |
Hardness (HRC) | ≤229 (quenched and tempered) |
GB/T 34109 42CrMo Seamless Steel Tubes belong to the 42CrMo alloy grade, which is known for its high strength, excellent thermal expansion properties, and durability.
These steel tubes are primarily used as drill rods in rotary digging machines. Their ability to withstand high temperatures and provide exceptional thermal expansion makes them ideal for drilling in challenging environments.
In some cases, alternative grades can be considered depending on specific requirements. Some possible alternatives to GB/T 34109 42CrMo tubes include:
Alternative Grade | Description |
---|---|
42CrMoV | Offers increased resistance to wear and improved toughness. |
40Cr | Provides good strength and versatility in various applications. |
35CrMo | Known for its high tensile strength and excellent machinability. |
These alternative grades can be chosen based on the specific demands of the drilling operation and the desired balance of properties.
Please note that it's essential to consult with steel tube suppliers and experts to select the most suitable grade for your drilling needs.
This article provides a comprehensive overview of GB/T 34109 42CrMo Thermal Expansion Seamless Steel Tubes, covering their material, specifications, key features, chemical composition, mechanical properties, steel grade, application, and potential alternative grades. These tubes are designed to meet the rigorous demands of drill rods in rotary digging machines, offering strength, thermal expansion properties, and customizability to ensure efficient drilling operations.
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A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
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