Shandong Jingcheng Tianyu Steel Pipe Co., Ltd.
Shandong Jingcheng Tianyu Steel Pipe Co., Ltd.
13969539427
13969539427
13969539427@163.com
13969539427@163.com
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Shandong Jingcheng Tianyu Steel Pipe Co., Ltd.
Add:Wangxing Industrial Park, Economic and Technological Development Zone, Liaocheng City, Shandong Province
Tel:13969539427
Phone:13969539427
Email:13969539427@163.com
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20Cr seamless steel pipe
Number of visits: 132
Unit Price: Face to face
Minimum Ordering:
Total supply:
period for dispatch: Delivery within 3 days from the date of buyer's payment
Valid until: Long-term effectiveness
Last update: 2020-09-02 16:04
Product Details
20Cr seamless steel pipe
20Cr seamless steel pipe, 20Cr is pearlite, can be welded, 20Cr steel has better weldability, and generally does not need heat treatment after welding.
Chemical composition of 20Cr seamless steel pipe (%): Silicon: 0.17~0.37
Mechanical properties:
Tensile strength σb (MPa): ≥835 Yield strength σs (MPa): ≥540 Elongation δ5 (%): ≥10 Section shrinkage ψ (%): ≥40, impact absorption work Ak (J) ≥47 hardness : Annealing or high temperature tempering supply state hardness ≤156HB, sample size: sample size 15mm
Heat treatment specification:
The quenching temperature (℃) is 880 for the first time, 780~820 for the second time, coolant water and oil. Tempering temperature (℃) 200, coolant water and air.
Welding performance:
20Cr parts with a thickness greater than 15mm need to be preheated to 100~150℃ before welding. If the requirements are not high, preheating before welding is not required, or tempering heat treatment after welding.
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