42CrMo Steel Pipe Supplier | AISI 4140 Equivalent Alloy Steel Tube

42CrMo Steel Pipe Supply Range

We supply 42CrMo steel pipe in a range of specifications, with seamless steel pipe being the most common supply form for high-strength applications.

• Outer diameter: 10 mm – 600 mm
• Wall thickness: 2 mm – 80 mm
• Length: random length or fixed cut length
• Delivery condition: hot rolled, cold drawn, normalized, quenched & tempered (Q&T)

Product forms include:

• 42CrMo Seamless steel pipe (for pressure and general applications)
• Mechanical tubing (tight tolerance, suitable for hydraulic cylinders and machined components)

Equivalent material supply such as AISI 4140 steel pipe is available based on project requirements.
→ See also: 4140 Steel: Properties, Applications & Heat Treatment Guide

Manufacturing & Heat Treatment Capability

Our 42CrMo alloy steel pipe is produced with controlled processes to ensure stable performance:

• Steelmaking: EAF + LF + VD refining
• Forming: hot rolling or cold drawing
• Heat treatment options:
  • Normalized
  • Quenched and tempered (Q&T)
  • Stress relieved

Quenched and tempered 42CrMo steel pipe is widely used where high strength and toughness are required.

Applications of 42CrMo Steel Pipe

42CrMo steel pipe is commonly used in:

• Mechanical components (shafts, gears, structural parts)
• Oil & gas equipment (drilling tools, high-pressure systems)
• Hydraulic cylinders and precision systems
• Heavy machinery and mining equipment

Chemical Composition & Mechanical Properties

Chemical Composition (Typical Range)

Grade	C	Cr	Mo
42CrMo	0.38–0.45	0.90–1.20	0.15–0.30

Mechanical Properties (Quenched & Tempered Condition)

Mechanical properties of 42CrMo steel pipe depend on section size and heat treatment condition:

• For smaller sections (≤100 mm):
  • Yield strength ≥ 930 MPa
  • Tensile strength ≥ 1080 MPa
• For larger sections (100–150 mm):
  • Yield strength ≥ 785 MPa
  • Tensile strength ≥ 980 MPa

Actual values may vary depending on wall thickness and processing route.

42CrMo Steel Pipe Export Supply

We provide 42CrMo steel pipe supply for international projects with:

• Bulk supply capacity for engineering and EPC projects
• Flexible specifications including thick wall seamless steel pipe
• Customized cutting and processing services
• Supply in normalized or quenched & tempered (Q&T) condition
• Equivalent grades available (42CrMo / AISI 4140)
• Export experience to Russia and CIS markets

For large-volume orders, we support fast quotation and technical coordination.

Why Choose Us as Your 42CrMo Steel Pipe Supplier

• Consistent quality control across heat treatment and mechanical performance
• Stable supply for high-strength alloy steel pipe applications
• Experience supporting mechanical, oil & gas, and heavy equipment industries
• Flexible export solutions for multi-standard projects (ASTM / GB / GOST)
• Reliable packaging, inspection, and international logistics support

FAQ

• What is 42CrMo steel pipe used for?
  It is widely used in mechanical parts, oil & gas equipment, and heavy-duty structural applications requiring high strength.
• Can 42CrMo steel pipe be supplied in Q&T condition?
  Yes, quenched and tempered 42CrMo steel pipe is available for applications requiring higher mechanical performance.
• Is 42CrMo equivalent to AISI 4140?
  Yes, 42CrMo is commonly used as an equivalent to AISI 4140 steel pipe in international supply.
• What is the Russian equivalent of 42CrMo?
  For projects requiring Russian standards, materials such as GOST 38KhM or GOST 40KhM are more appropriate equivalents due to similar chromium-molybdenum composition.
• Do you supply thick wall 42CrMo pipes?
  Yes, thick wall 42CrMo seamless steel pipe is available for high-pressure and heavy-load applications.

Q: What is your company’s main products/services?

A: We are a professional manufacturer for Carbon Steel, Alloy Steel and Profile products. We have the experience of steel business for more than 10 years and our products are exported to Mid East,South America,Southeast Asia,Africa,South and East Asia etc.

Q: Can I go to your factory for a visit?

A: Of course, we welcome customers from all over the world to visit our factory.

Q: What are your terms of payment?

A: 30% T/T deposite and 70% balance before shipment.

Q: What is your delivery time?

A: For stocks,we could transport the goods to loading port within 7 days after we received the deposit; For production,it usually takes about 15-30 days after receiving the deposit.

Q: Do you provide samples? Are they free or paid?

A: Samples are available for free,but the courier freight will be covered by customer account.

Q: Do you accept the third party inspection?

A:Yes, we fully accept ‌third-party inspections.

Q: Why should I buy from you not from other suppliers?

A: Integrating the superior resources of China’s steel industry, we provide customers with high-quality steel products at preferential prices, and can ensure that the goods are delivered to customers in a timely manner.

Q:How can you guarantee quality?

A: Always a pre-production sample before mass production;Always 100% inspected before shipment