Alloy Steel Seamless Pipe - 42CrMo / 4140 / 4340
Product Summary
Our alloy steel seamless pipes are available in grades 42CrMo, 30CrMo, 4140, 4130, 4145, 4340, and E355. With outer diameters from 10mm to 1080mm and wall thicknesses from 2mm to 110mm, these pipes are supplied in hot rolled, cold drawn, or cold rolled condition, with optional quenching and tempering. They are CE 3.1 certified under EN 10210/EN10219/EN10025, ensuring reliability for demanding applications such as heavy machinery, oil and gas drilling, and structural components.
Key Selling Points
- High Strength Alloys: Grades 42CrMo, 4140, 4340 provide excellent tensile strength and toughness for high-load applications.
- Certified Quality: CE 3.1 certificate (No. 3N230530.STMDO12) confirms compliance with European norms.
- Heat Treatment Options: Quenching and tempering available to meet specific hardness and strength requirements.
- Versatile Sizes: Wide OD and WT range accommodate custom requirements.
- Proven Application: Used in heavy machinery, energy equipment, and oil/gas drilling projects across multiple countries.
Technical Specifications
| Parameter | Range / Value |
|---|
| Outer Diameter (OD) | 10mm – 1080mm |
| Wall Thickness (WT) | 2mm – 110mm |
| Length | 5m-5.8m / 6m / 6m-12m |
| Material Grades | 42CrMo, 30CrMo, 4140, 4130, 4145, 4340, E355 |
| Delivery Condition | Hot Rolled / Cold Drawn / Cold Rolled / Quenched & Tempered |
| Standards | EN 10210, EN 10219, EN 10025, ASTM A106 (equivalent) |
| Certification | CE 3.1 (ECM, No. 3N230530.STMDO12) |
Models and Options
Key alloy grades include 42CrMo (chromium-molybdenum), 4140, 4340 for high strength, and E355 for structural applications. Custom chemical compositions can be discussed for specific projects.
Materials and Structure
Manufactured from alloy steel billets with precise alloying elements (Cr, Mo, Mn). The pipes can be supplied as hot rolled (black) or cold drawn, with heat treatment to enhance hardness and wear resistance.
Applications
Suitable for heavy machinery frames, oil and gas drilling equipment (drill collars, pipes), aerospace components, high-strength structural supports, and energy equipment experiencing high loads and pressures.
Customization
We offer custom lengths, heat treatment (Q&T), and surface finishes. MOQ 5 tons. Delivery terms: FOB, CIF, CFR, EXW, DDP. Payment: TT or LC. Inquiries for non-standard sizes are welcome.
Case Study
Our alloy steel pipes have been used in a petroleum equipment factory (50 sets) for oil drilling equipment manufacturing, operating continuously for 10 years with stable performance. The project involved high load and high pressure conditions.
FAQ
- What is the minimum order for alloy steel pipes? MOQ is 5 tons.
- Can you supply heat treated pipes? Yes, we offer quenching and tempering to meet your strength specifications.
- What delivery options are available? FOB, CIF, CFR, EXW, DDP.
- Do you have CE certification? Yes, CE 3.1 certificate valid until 2028.
- What payment methods do you accept? TT or LC.
- What is the typical delivery time? 30-45 days, or customized based on order quantity.
- Can you provide pre-shipment inspection? Yes, pre-shipment tests are accepted.
- What industries do you serve? Oil & gas, heavy machinery, energy, structural engineering.
Inquiry Information
Contact Olivia: olivia@sdtuoda.com, Tel/WhatsApp: +86 13290268388. Visit our website: WWW.SDTDSTEEL.COM.
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