Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of astm a519 mt1020 honed seamless steel tube/pipe in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
Our ASTM A519 MT1020 honed seamless steel tube is the premier choice for demanding mechanical and hydraulic systems. This seamless pipe is manufactured to meet strict ASTM A519 standards, ensuring a homogeneous structure with no weld seams. The MT1020 carbon steel composition is specifically processed through a precision honed operation, delivering an exceptionally smooth ID (Inner Diameter) surface that minimizes friction and enhances the service life of your components.
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Products Description
Welcome to our high-performance ASTM A519 MT1020 honed seamless steel tubes and pipes. Engineered for precision and durability, these seamless mechanical tubing components are cold-drawn and honed to achieve superior internal surface finishes and tight dimensional tolerances. The MT1020 grade offers an excellent balance of strength and machinability, making our honed tubing ideal for hydraulic cylinders, pneumatic cylinders, bearing races, and various other critical applications where reliability is paramount.
Specifications
| Parameter | Details |
|---|---|
| Standard | ASTM A519 |
| Grade | MT1020 (1020 Carbon Steel Mod.) |
| Type | Seamless, Cold Drawn, Honed |
| Key Process | ID Honing / Skiving & Burnishing |
| Internal Finish | Typically 4-16 Ra µ-in (1-4 Ra µm) or as specified |
| Common OD Range | 1" to 8" (25 mm to 200 mm) |
| Common Wall Thickness | 0.083" to 0.5" (2 mm to 12.7 mm) |
| Length | Custom cut to length |
| Key Characteristics | High Strength, Excellent Machinability, Smooth ID |
Products Applications
Our honed seamless tubing is ideally suited for:
Hydraulic Cylinder Barrels
Pneumatic Cylinder Tubes
Linear Motion Shafts and Guides
Bearing Races and Housings
Shock Absorber Bodies
Precision Machined Components
Automotive and Off-Highway Equipment
Industrial Machinery and Presses
Frequently Asked Questions (FAQ)
Q1: What is the main advantage of a honed tube over a standard cold-drawn seamless tube?
A: The primary advantage is the internal surface finish. A standard cold-drawn tube has a good finish, but a honed tube undergoes an additional process that polishes the ID to a mirror-like smoothness. This reduces friction, prevents premature seal wear, and is essential for the efficient operation of hydraulic and pneumatic cylinders.
Q2: Can this MT1020 honed tubing be welded or machined?
A: Yes, absolutely. The MT1020 grade is known for its excellent machinability and good weldability. It can be easily machined to create ports, grooves, or threads, and it can be welded using standard methods, though proper pre- and post-weld heat treatment may be recommended for critical applications to preserve material properties.
Q3: What does "MT1020" mean, and how is it different from standard SAE 1020?
A: "MT" stands for "Mechanical Tubing." MT1020 is a modification of standard SAE/AISI 1020 carbon steel, specifically optimized for tubular products. It typically has tighter control over chemical composition and mechanical properties to ensure better performance in mechanical and structural applications compared to standard 1020.
Q4: How do I specify the honed finish I need?
A: The honed finish is typically specified by its surface roughness, measured in Ra (Arithmetic Average) micro-inches or micro-meters. A lower Ra value indicates a smoother surface (e.g., 8 Ra µ-in is smoother than 16 Ra µ-in). Our sales engineers can help you determine the ideal finish for your specific pressure, speed, and seal type requirements.
Q5: Do you provide material certification?
A: Yes, we supply full traceability and certification with our products. We can provide a Mill Test Certificate (MTC) or Certificate of Conformance (COC) that complies with ASTM A519 standards, detailing chemical composition and mechanical properties.
Q6: What are your packaging options?
A: We take great care in packaging to prevent damage during transit. Options include wooden crates, steel strapping, and protective end caps to safeguard the critical honed internal surface.
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