430 stainless steel standard classification and grading:

Hierarchical classification: 

1, the national standard GB 2, the industry standard YB 3, 4 local standards, corporate standards Q / CB 

Category: 

1 product packaging standard stainless steel sheets‍ 2 Standard 3 Method 4 basic standards 

Standard level (of three): 

Y class: the international advanced stainless steel coils manufacturers‍ class I: International general level H level: advanced level 

GB 

GB1220-84 stainless steel rods (I grade) GB4241-84 stainless steel plate welded Park (H level) 

GB4356-84 stainless steel plate welded Park (I-level) GB1270-80 stainless steel pipe (Class I) 

GB12771-91 stainless steel pipe (Y class) GB3280-84 stainless steel cold (I class) 

GB4237-84 stainless steel hot plate (I grade) GB4239-91 stainless steel cold strip (I class)‍