SAE 4140 Round Seamless Steel Pipe for Oil Drilling and Aerospace
Product Summary
Our SAE 4140 round seamless steel pipe is manufactured to meet demanding applications in oil drilling and aerospace. Available in outer diameters from 20 mm to 400 mm and wall thicknesses from 3 mm to 30 mm, this pipe delivers exceptional strength, durability, and fatigue resistance. It is backed by a CE 3.1 certificate (EN 10210, EN 10219, EN 10025) and has been used for over 10 years by a petroleum equipment factory for drill collar production.
Key Selling Points
- High Strength for Heavy Loads: SAE 4140 alloy steel provides superior tensile strength and wear resistance, ideal for drill collars and aerospace components under high pressure.
- Precision Dimensions: Outer diameter range 20-400 mm and wall thickness 3-30 mm ensure compatibility with standard drilling and machining equipment.
- Heat Treatment Capability: We offer customized heat treatment to optimize mechanical properties for cyclic loading and high-temperature environments.
- Certified Quality: CE 3.1 certification (certificate no. 3N230530.STMDO12) ensures compliance with European standards EN 10210/EN 10219, valid until 2028.
- Proven Track Record: A petroleum equipment factory in Chile and India has used 50 sets of our pipes for over 10 years with stable operation and low loss.
Technical Specifications
| Parameter |
Value |
| Material | SAE 4140 |
| Type | Round Seamless Steel Pipe |
| Outer Diameter (OD) | 20 - 400 mm |
| Wall Thickness (WT) | 3 - 30 mm |
| Applicable Industry | Oil, Aerospace, Heavy Machinery, Energy Equipment |
| Certification | CE 3.1 (EN 10210, EN 10219, EN 10025) |
| Heat Treatment | Available (normalizing, quenching, tempering) |
Models and Options
This product is available in SAE 4140 round seamless steel pipe with custom OD/WT combinations. We also supply square steel pipe under the same material specification. For specific dimensions, please contact us.
Materials and Structure
The pipe is made from SAE 4140 low-alloy steel, known for its high strength, toughness, and wear resistance. The seamless manufacturing process ensures uniform wall thickness and no weld seams, suitable for high-pressure and cyclic loading conditions.
Applications
- Drill collars for oil and gas drilling
- Aerospace components (e.g., structural parts)
- Heavy machinery and energy equipment
- Automobile manufacturing projects
Customization
We offer customization services including heat treatment, precision cutting, surface finishing, and threading. Our MOQ is 5 tons (per purchase order). Delivery terms: FOB, CIF, CFR, EXW, DDP. Payment: TT or LC.
Case Study
Client: Petroleum equipment factory (Chile and India)
Quantity: 50 sets
Application: Production and manufacturing of oil drilling equipment (drill collars)
Duration: 10 years
Result: Stable operation with low loss, high performance, high applicability.
FAQ
What is the MOQ for SAE 4140 seamless steel pipe?
The MOQ is 5 tons per order.
What certifications do you have?
We hold CE 3.1 certificate (certificate no. 3N230530.STMDO12) issued by ECM, valid until 2028, covering EN 10210, EN 10219, and EN 10025 standards.
Can you provide heat treatment for the pipes?
Yes, we offer heat treatment services including normalizing, quenching, and tempering to meet application requirements.
What is the typical delivery time?
Please contact us for delivery time based on quantity and specifications. We support FOB, CIF, CFR, EXW, and DDP terms.
What sizes are available?
We supply outer diameters from 20 mm to 400 mm and wall thicknesses from 3 mm to 30 mm.
How do you guarantee quality?
We perform pre-shipment testing and provide CE-certified products. Our factory is ISO-compliant and has a 30,000 m² facility.
Can I get a sample before bulk order?
Please contact us to discuss sample availability. MOQ starts at 5 tons for production orders.
Inquiry Information
For inquiries, please contact Olivia at olivia@sdtuoda.com, Tel: +86 13290268388, or WhatsApp: +8613290268388. Address: NO853 south Liaoniu Road, Dongchangfu District, Shandong, China.
