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Mechanical properties of stainless steel

Groups 
of
steel		Strength classDimensionŠroubyMatice
Limit of strength
Rm N/mm2
min.		Yield point
Rp0,2N/mm2
min.		Extension
to break
ALmin.		Trial 
tension Sp
N/mm2
A1, A2, A450M 395002100,6 d500
70M 207004500,4 d700
80M 208006000,3 d800
The stainless steel materials - individual groups and classes of steel are described 4-digitcombination of letters and numbers. The letter describes the general classification of the steelgroup. For austenitic steels is used the letter A. The first digit after the letter indicates the type ofalloy steel within the group. The last two digits indicate the strength class
Example: A2-70-austenitic steel reinforced cold tensile strength min. 700N/mm ².

Product labeling

Bolts - hexagon, cylindrical and hexagon socked head bolts diameter from 5mm have to bemarked out in accordance with the validation system, see. Example above. Marking can be done where the screw head is. It must contain class and strength of steel (designation of origin). Anyadditional markings shall not conflict with standard markings.

Nuts - with a diameter from 5 mm is specified as a group of steel, strength class (if required) with designation of origin, if it is technically possible.

Nahoru

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