Invited by HBIS WUSTEEL to visit and cooperate together

Invited by HBIS WUSTEEL to visit and cooperate together on SA387 GR22 CL2 plate

Details of Cooperative Activities：

Material:SA387 GR.22 CL2

Thickness:60mm，40mm,20mm

• Brief introduction：Production of sa387gr22cl2 (2 1 / 4cr-1mo) steel plate for hydrogen equipment with thickness ≤ 150 mm
• Standard:ASME SA387/SA387M
• Delivery condition:The steel plate shall be delivered in normalizing (to ensure the accelerated cooling speed of bainite structure ≥ 90%) and tempering state. The normalizing temperature shall not exceed 968 ℃, and the tempering temperature shall not be lower than 720 ℃
• Chemical composition:
  

  Component	C	Si	Mn	P	S	Cr	V	Mo	Nb
  Heat analysis	0.05~0.15	≤0.10	0.30~0.60	≤0.010	≤0.005	2.00~2.50	≤0.010	0.90~1.10	≤0.010
  Product analysis	0.04~0.15	≤0.10	0.25~0.63	≤0.010	≤0.005	1.95~2.60	≤0.010	0.87~1.13	≤0.010

• Smelting method: electric furnace + LF / VD vacuum furnace refining method is adopted. All steel plates shall be subject to simulated post weld heat treatment for test sample blanks. The process system is: maximum simulated post weld heat treatment: max. PWHT: 690 ± 14 ℃ × 26h; minimum simulated post weld heat treatment: min. PWHT: 690 ± 14 ℃ × 8-2h
• Mechanical properties:
  

  TS RM(Mpa)	Yield point Rp0.2 MPa	A %	Z%	cold-bending test b=2a	-30℃ Charpy impact
  515~690	310～620	≥18	≥45	Bending 180 ° without crack	≥ 54 (average value) ≥ 47 (single value)

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