Seamless Cold Drawn H8 ST52 Honed Tube

This honed tube is engineered with a meticulously polished inner surface to enhance smoothness and minimize friction. Made from robust ST52 steel, it delivers high strength and excellent resistance to wear, supporting durability over time. The precision H8 tolerance ensures exact dimensional accuracy, meeting rigorous performance standards in challenging conditions.

Corrosion resistant for long-lasting durability.
Precise chemical composition ensures uniform material quality.
Strict tolerances provide high dimensional accuracy and uniform diameter.
Enhanced straightness for seamless assembly.
Engineered for reliable performance in demanding conditions.

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Descriptions of ST52 Honed Tube

This ST52 honed cylinder tube is engineered for excellence in hydraulic and pneumatic systems, delivering unparalleled performance and reliability. Made from high-strength ST52 steel, this honed tube boasts a tensile strength of approximately 520 MPa, making it ideal for demanding applications.

Featuring a smooth, honed finish, the inner surface reduces friction and wear, ensuring that pistons operate seamlessly within hydraulic and pneumatic cylinders. It prevents the accumulation of contaminants, simplifying maintenance and cleaning while extending equipment lifespan and minimizing failure risks.

With excellent weldability and machinability, the ST52 honed tube can be customized to fit a variety of structural and engineering needs. Its toughness and durability make it a preferred choice in industries such as construction, automotive, and manufacturing.

Specifications of ST52 H8 Tolerance Honed Tube

Baokun cater to both custom and stock orders, providing flexibility to meet your specific needs. Our minimum order quantity (MOQ) is just 1 ton.

Honed Tube Size:
Out Diameter: 40-480mm
Inner Diameter: 30-400mm

Standard: GB/T3639-2009, EN10305-1, EN10305-2, ASTM A519-2006, GB/T1591-2008

Type: Seamless

Production: Cold Drawning

Chemical Composition:

Steel grade	Chemical composition,%
	C	Si	Mn	P	S	Cr	Ni	V	Al
	C	Si	Mn	≤ ≥
C20	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035	0.250	0.250	/	/
CK45	0.42-0.5	0.17-0.37	0.5-0.8	0.025	0.020	0.250	0.300	/	/
Q355B	≤0.2	≤0.5	1.00-1.60	0.030	0.030	0.030	0.250	0.080	/
Q355D	≤0.2	≤0.5	1.00-1.60	0.030	0.030	0.250	0.250	0.150	0.150
E355(ST52)	≤0.22	≤0.55	≤1.6	0.025	0.025	0.250	0.250	/	/
SAE1026	0.22-0.28	0.15-0.35	0.6-0.9	0.040	0.050	/	/	/	/
4130	0.28-0.33	0.15-0.35	0.40-0.60	0.040	0.040	0.80-1.10	/	/	/
4140	0.36-0.43	0.15-0.35	0.75-1.00	0.040	0.040	0.80-1.10	/	/	/

Processing Technique

Cold drawing is a metalworking process that reduces the diameter of a tube while increasing its length at room temperature. This technique enhances dimensional accuracy and strengthens the material through strain hardening.

Following cold drawing, the tube undergoes honing, which uses scraping and rolling techniques to improve surface finish. This process introduces residual compressive stress, sealing small cracks and enhancing corrosion resistance.

Honed tube exhibits improved fatigue strength by delaying the growth of fatigue cracks. The combination of cold drawing and honing produces a durable, high-quality product ideal for demanding industrial applications.

Applications of ST52 Honed Tube

Hydraulic Cylinders: ST52 honed cylinder tubes are crucial components in hydraulic systems, providing a smooth inner surface that reduces friction and enhances efficiency.
Pneumatic Systems: ST52 honed tubes are used in pneumatic cylinders, ensuring reliable operation in air-powered machinery.
Automotive Industry: Commonly found in shock absorbers, steering systems, and other critical automotive components, they contribute to vehicle stability and performance.

Why Choose Baokun?

Baokun is a trusted honed tube manufacturer dedicated to delivering high-quality products with exceptional service. We prioritize customer satisfaction by offering competitive pricing, fast delivery, and reliable support to meet your unique needs.

Fast Delivery: 5-7 days for in-stock items; 30-45 days for custom orders.
24/7 Customer Support: A dedicated team of 15 professionals ready to assist you anytime.
Quality Assurance: Refunds or replacements for any faulty products.
Competitive Pricing: Affordable solutions without compromising quality.
Customization Options: Tailored products to meet your specific requirements.