Q/BQB 310-2018: Hot-rolled steel sheets and strips for automotive structures

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Scope

1.1 The thickness tolerance of B440QZR and B480QZR shall meet the requirements
of Q/BQB 301 higher precision (PT.B).
1.2 Other dimensions, shapes, weights and tolerances are in accordance with Q/BQB
301.
1.3 If the purchaser needs higher requirements for thickness accuracy, the advanced
precision PT.C given in Table 4 of Q/BQB 301 may be chosen when ordering.

Basic Data

Standard ID	Q/BQB 310-2018 (Q/BQB310-2018)
Description (Translated English)	Hot-rolled steel sheets and strips for automotive structures
Sector / Industry	Chinese Industry Standard
Classification of Chinese Standard	QBQ
Word Count Estimation	8,899
Issuing agency(ies)	Baoshan Iron and Steel Co., Ltd.