The p40 is stainless steel middle frame.
The Huawei P40 is a smartphone developed by Huawei and released online worldwide on March 26, 2020.
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Huawei P40 is equipped with Kirin 9905G processor, 6.1-inch straight screen, 50-megapixel three-camera system, built-in EMUI10.1 system and Huawei HMS service.
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Huawei P40 adopts a 6.1-inch flat screen and a rear three-lens module, which offers five color schemes: Bright Black, Deep Blue, Frost Silver, Dawn Gold, and Zero White.
p40 and 718 in die steel are not the same material.P40 is the grade of Tiangong International Steel Works, P40 is a non-standard NAK80 die steel. P40 hardness HRC38, 3 degrees higher than 718.