ASTM A519 SAE 1045 Carbon Steel Precision Seamless Tubes for
Automotive Bushings
ASTM A519 | SAE 1045 | Cold Drawn/Annealed | OD Range: 3mm – 120mm
Product Overview
As a professional manufacturer and supplier of precision steel
tubes, we offer high-quality ASTM A519 SAE 1045 seamless tubes specifically engineered for automotive bushing applications. Our SAE 1045 tubes are cold drawn and thermally treated to
deliver the optimal balance of strength, machinability, and wear
resistance required for suspension bushings, engine mount sleeves,
and chassis components.
Manufactured in strict compliance with ASTM A519/A519M standard (the standard specification for seamless carbon and alloy
steel mechanical tubing), our SAE 1045 material is the preferred
choice for automotive OEMs and Tier 1 suppliers worldwide
Technical Specifications (At-a-Glance Table)
Chemical Composition (Weight %)
The following chemical composition is in accordance with ASTM A519
requirements for SAE 1045 :
Note: Actual mill test certificates (MTC) are provided with each
shipment to ensure full traceability.
Mechanical Properties
Our SAE 1045 tubes deliver consistent mechanical performance ideal
for structural automotive components :
Annealing & Heat Treatment
To ensure optimal machinability and formability for bushing
production, our SAE 1045 tubes are supplied in the annealed condition. The standard heat treatment process is as follows :
We can customize the heat treatment condition (normalized, quenched
& tempered, or stress relieved) based on your final application
requirements.
Material Characteristics & Advantages for Bushings
SAE 1045 is a medium-carbon steel that offers the following
benefits for automotive bushing manufacturing :
Applications: Automotive Bushings & Beyond
Our ASTM A519 SAE 1045 tubes are widely used in the following
applications:
Suspension Bushings – Inner and outer sleeves for rubber/metal bonded bushings
Engine Mount Sleeves – Precision spacers for vibration dampening systems
Chassis Components – Structural sleeves and collars
Hydraulic Cylinders – Medium-duty cylinder barrels
General Machinery – Precision shafts, rollers, and spacers
Why Choose Our SAE 1045 Tubes?
Full Traceability: Mill test reports (EN 10204 3.1) included with every order.
Custom Sizes: Available from 3mm to 120mm OD, cut to your exact length.
Surface Options: Black, polished, or phosphate coated (for rubber bonding).
Global Shipping: Reliable export packaging and fast delivery worldwide.
Q: What is the minimum order quantity (MOQ)?
A: We offer flexible quantities. Please inquire for specific
requirements.
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Request a Quote
Contact our technical sales team today for pricing, stock
availability, or free samples.
[Contact Sales] | [Request Mill Test Certificate Sample] | [Download Technical Datasheet (PDF)]
Frequently Asked Questions (FAQ)
Q: Is SAE 1045 the same as CK45 or C45?
A: Yes, SAE 1045 is the U.S. standard equivalent to European CK45 (1.1191) and C45 grades. It is also comparable to JIS S45C .
Q: Can these tubes be used for rubber-to-metal bonding?
A: Absolutely. We can supply tubes with a phosphate-coated surface finish to enhance rubber adhesion for bonded bushing
applications.
