The difference between precision hydraulic seamless steel pipe and seamless steel pipe
Release time:
2021-04-25 18:35
Source:
Debiao Steel Pipe Co., Ltd. is a precision hydraulic steel pipe enterprise integrating production, research and development and operation. The company's products precision hydraulic seamless steel pipe has been the trust of our customers. The difference between precision hydraulic seamless steel pipe and seamless steel pipe is: 1. The obvious difference between seamless steel pipe and seamless steel pipe is: high dimensional accuracy, which can reach 0.1mm.
2. The surface finish of the inner and outer diameters of precision steel pipes is high, and customers can use them directly without processing; while ordinary seamless steel pipes need to be processed by customers such as lathes and polishing.
● Chemical composition of precision seamless steel pipe:
Carbon C :0.10~0.15 Si:0.17~0.37 Mn:1.10~1.60 S ≤ 0.035 P :≤ 0.035 Cr:0.90~1.30V :0.03~0.06 Mo:0.32~0.40 B :0.002~0.006
● Mechanical properties of precision seamless steel pipe:
Tensile strength σb (MPa):868 conditional yield strength σ0.2 (MPa):713 elongation δ5 (%):17 elongation δ10 (%):11 section shrinkage ψ (%):62 impact toughness value αku (J/cm2):5 sample size: a sample
● Precision seamless steel pipe heat treatment specification and metallographic structure: heat treatment specification: 900 ℃ normalizing, 600 ℃ tempering. Metallographic organization: tempered bainite a small amount of tempered sorbite.
Features
1. The outer diameter is smaller.
2. High precision can do small batch production.
3. The cold drawn finished product has high precision and good surface quality.
4. The cross-sectional area of steel pipe is more complicated.
5. Steel pipe performance is more superior, metal is more dense.
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