The 20# precision steel pipe has no oxide layer on the inner and outer walls and can withstand high pressure without leakage. It has the characteristics of high precision, high smoothness, no deformation during cold bending, no cracks when flaring, and flattening. Therefore, it is mainly used for the production of pneumatic or hydraulic components. , such as cylinder. Or the cylinder is a seamless tube. The main components of precision steel pipes are carbon and manganese, of which carbon content is the highest, usually between 0.12% and 0.20%. In addition, No. 20 precision steel pipe also contains small amounts of silicon, phosphorus, sulfur and other elements. The presence of these elements also has a certain impact on the performance of steel pipes.
High strength: No. 20 precision seamless steel pipe has high tensile strength and yield point, can withstand greater pressure and carry greater weight.
High precision: No. 20 precision bright seamless steel pipe has high dimensional accuracy, uniform wall thickness, smooth internal and external surfaces, no iron oxide scale, no folds, no cracks and other defects, and excellent processing performance.
High corrosion resistance: No. 20 high-precision seamless steel pipe undergoes oxygen-free annealing treatment. It has good surface quality, strong corrosion resistance, and can adapt to various harsh environments.
20# seamless pipe has good cutting and processing performance and is suitable for manufacturing products with low stress but high toughness requirements. This shows that the material not only has sufficient strength, but also has good plasticity and toughness when needed. The hardness of 20# pipe is slightly lower than that of 45# seamless steel pipe, and 45# steel pipe may have better wear resistance and impact resistance.
Mechanical Properties of 20 # Seamless Steel Pipe
| Standard | Mechanical Properties |
| Tensile strength/MPa | Yield strength/MPa | Elongation | KV2/J |
| S≤16mm | 16-30mm | ＞30mm | Portrait | Transverse | Portrait | Transverse |
| ≥ | Test temperature/℃ 0℃ |
| GB/T8163 | 410-530 | 245 | 235 | 225 | 20 | --- |
| GB/T 9948 | 410-550 | 245 | 24 | 22 | ≥40 | ≥27 |
| GB/T 6479 | 410-550 | 245 | 16-40mm | ＞40mm | 24 | 22 | ≥40 | ≥27 |
No. 20 cold drawn precision seamless steel pipe is widely used in the following fields:
Petrochemical industry: used to manufacture pipelines, storage tanks, reactors and other equipment, which can withstand harsh environments such as high temperature, high pressure and corrosion.
Electricity: used to manufacture generator sets, boilers, thermal pipelines and other equipment, which require high strength and good corrosion resistance.
The company's main products are: seamless steel pipes, alloy steel pipes, seamless boiler pipes, and galvanized pipes. The company's products are exported to more than 150 countries around the world.
FAQ
Q.How about the after sale service?
A.1.We will always keep the quality the same as the buyer's samples.2.We will suggest our packing and take charge in our packing,we will keep the goods safe in the delivery.3.We will trace the goods from the production to selling,we will solve the problems in the selling for our customers.
Q.Can I visit your factory?
A.Of course you can, we welcome customers from all over the world to visit our factory.
Q.Does the product have quality inspection before loading?
A.Of course, all our products are strictly tested for quality before packaging, and ungualified products will bedestroyed.we accept the third party inspection absolutely.
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20# Cs Seamless Pipe Precision Sch 40 GB Standard Images
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