DIN2391 ST52 Honed Tube and Pipes

Description

DIN2391 ST52 Honed Tube and Pipes are high-precision cold-drawn seamless steel tubes widely used in hydraulic systems, construction machinery, and automotive precision components. They conform to DIN2391-1 or GB3639-83 standards. Made primarily of carbon steel, DIN2391 ST52 Honed Tube and Pipes undergo cold drawing/cold rolling, pickling, and phosphating processes. They exhibit high precision (inner diameter accuracy up to ±0.02-0.05mm) and low surface roughness, and are capable of withstanding high pressures and resisting deformation.

DIN2391 ST52 Honed Tube and Pipes are characterized by high strength, excellent toughness, machinability, and weldability, as well as good machinability and cold forming properties.

DIN2391 ST52 Honed Tube and Pipes have a wide range of applications, primarily in the manufacture of hydraulic and pneumatic cylinders requiring high load capacity, as well as equipment for industries such as agriculture, mining, lifting, automotive, and machinery manufacturing.

Features of DIN2391 ST52 Honed Tube and Pipes:

1. High Strength and Toughness: ST52 is a medium-carbon alloy steel with high tensile strength and toughness.

2. Excellent Machinability and Weldability: Even in the stress-relieved, quenched and tempered state, it exhibits excellent machinability and weldability.

3. Good Cold Formability: It can be cold-formed, such as bending.

4. High-Temperature Resistance: It maintains its strength and performance even in high-temperature environments.

5. Cost-Effectiveness: It is a cost-effective solution.

Applications of DIN2391 ST52 Honed Tube and Pipes:

1. Hydraulic and Pneumatic Cylinders: These are primarily used in applications such as mining and agricultural machinery, hoists, automotive, and transport lifting equipment.

2. Machinery Manufacturing: Used in the manufacture of various mechanical equipment, including machine tools, compressors, and earthmoving equipment.

3. Transportation Equipment: Applications such as waste handling and transportation equipment.

4. Food Processing Equipment: Used in food processing equipment. 5. General Engineering: Used in general engineering projects requiring high strength and toughness.

Honed steel pipe is primarily made of ST35, ST37.4 (10#), ST45 (20#), ST55 (35#), and ST52 (16Mn). It is a high-precision steel pipe produced through cold drawing or hot rolling. Its primary components are carbon, silicon, manganese, sulfur, phosphorus, and chromium. It has no oxide layer on its inner and outer surfaces and offers high precision, high finish, high pressure resistance, and resistance to deformation during cold bending. It is commonly used in the manufacture of hydraulic components such as cylinders and oil cylinders. Utilizing rolling technology, this steel pipe achieves a surface roughness of Ra ≤ 0.08µm. Compared to ordinary seamless steel pipe, this requires stricter internal bore precision and tolerance control.

Our factory has professional technicians and rich production experience. If you have special requirements for the product, we can customize the size and specifications according to the customer’s requirements. In addition to honed steel pipes, we can also supply seamless steel pipes, welded steel pipes, alloy steel pipes and other grades and specifications. You are welcome to inquire at any time and we will provide you with the best service.

Steel grade	Chemical composition,%
	C	Si	Mn	P	S	Cr	Ni	V	Al
				≤                        ≥
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	/	/	/

​Product Display

Packing & Delivery

Shipping By Sea

1. Standard packaging
2. Packaging according to customer requirements