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W zależności od wymaganej wytrzymałości na rozciąganie i od wymaganej granicy plastyczności w stalowych konstrukcjach budowlanych stosuje się 10 klas śrub - 3.6; 4.6; 4.8; 5.6; 5.8; 6.8; 8.8; 9.8; 10.9; 12.9. Klasy oznacza się symbolem składającym się z dwóch liczb przedzielonych kropka.
Steel Bolts - SAE Grades. For metric bolts strength is according ISO 898 Mechanical properties of fasteners made of carbon steel and alloy steel described by "property classes" with designations 4.6, 4.8, 5.8, 8.8, 9.8, 10.9 and 12.9.
This part of ISO 898 specifies mechanical and physical properties of bolts, screws and studs made of carbon steel and alloy steel when tested at an ambient temperature range of 10 °C to 35 °C. Fasteners — the term used when bolts, screws and studs are considered all together — that conform to the requirements of this part of ISO 898 are ...
27 lut 2014 · Bolting Property Classes 8.8 10.9 12.9 & 14.9. Have you ever stopped to think what the carbon steel bolting grade numbers signify. They’re not just random digits used to identify a material grade. These grade are stipulated in various international standards including DIN 267 and ISO 898.
Extract from ISO 898-1 Carbon Steel and Alloy Steel - Bolts, screws and studs. Chemical composition. Mechanical and physical properties. Hardness requirements.
MATERIAL Carbon steel quenched & tempered Medium Carbon Steel. Created Date: 8/7/2009 2:14:13 PM ...
BS EN ISO 898–1 Grade 8.8 is a carbon alloy steel used throughout the general engineering sector for mechanical jointing of components. Differing from general commercial bolting found in general hardware stores.
