Yuhong Group start from 2013 to now , finished a lot of Cr-Mo Alloy pipe, tube, fitting, flange which like :

1>. Alloy Steel Seamless Pipe :ASTM A335/ ASME SA335  P1, P11, P12, P22, P23, P5, P9, P91, P92;
2>. Alloy Steel Seamless Tube :ASTM A213/ ASME SA213  T1, T11, T12, T22, T23, T5, T9, T91, T92;
3>. Alloy Steel Flange /Forged Fittings /Nozzle /Tubesheet : ASTM A182/ ASME SA182  F1, F11, F12, F22, F23, F5, F9, F91, F92;
4>. Alloy Steel Buttweld Fitting : ASTM A234/ ASME SA234 WP1, WP11, WP12, WP22, WP23, WP5, WP9, WP91, WP92;
5>. Alloy Steel Plate: ASTM A387/ASME SA387 Gr.11, Gr.12, Gr.2, Gr.22, Gr.21, Gr.5, Gr.9, Gr.91 

Material shall comply with Low-Alloy Steel, SA-182/SA-182M Gr.F1,
Edition 2021 of ASME Sec. II Part A
Asually has request of Post Weld Heat Treatment(PWHT) which according to UG-6 for forgings of the ASME  Section. VIII Div. I. Edition 2021

Simulated Heat Treatment will be performed as following.
Loading Temperature: 300 Deg C
Rate of Heating: 222 (Deg C / Hr)
Soaking Temperature: Minimum 640 Deg C
Soaking Time: 40 Minutes
Rate of Cooling: 222 (Deg C / Hr)
Unloading Temperature: 300 Deg C









Alloy Steel, Material shall comply with SA-182 F11 Cl.2/SA-182M F11 Cl.2,
Ed. 2021 of ASME Sec. II Part A.
Asually has request of Post Weld Heat Treatment(PWHT) which according to UG-6 for forgings of the ASME Section. VIII Div. I. Edition 2021

Simulated post weld heat treatment as follows: -
Heat Treatment condition: (Considering Delivered condition N&T + PWHT
after fabrication in the shop)
Loading Temperature: 300 °C
Rate of Heating: 200 °C/Hr
Soaking Temperature: 660°C +/- 10°C
Soaking Period: 65 minutes. +/- 5Minutes
Rate of Cooling: 200 °C/Hr
Unloading Temperature: 300 °C