GB/T 709-2019 Chinese National Standard specifies the deviation of hot rolled steel plate thickness:
The thickness tolerance categories of medium thick plates include four grades: N, A, B, and C.
The detailed tolerances are as follows:
Class N: Lower deviation -2~-0.45mm
Class A: Lower deviation of -1.3~-0.35mm,
Class B: Lower deviation -0.30mm
Class C: Lower deviation -0.00mm
Anyang Rarlong Machinery Co., Ltd.
Contact:Mr. Yang Poping
Tel:+86-372-2517069
Phone:+86 13803722027 Mobile/Wechat
E-mail:sales@rarlongmachinery.com
Add:South Guangming Road,Anyang City,Henan Province,China