Reinforcing steel in rings KR

Reinforcing steel in rings KR (cold ribbed) is reinforcing steel in accordance with DIN 488 that is wound on coils and used for processing on straightening and cutting machines or automatic stirrup bending machines. The same mechanical and chemical values ​​apply to reinforcing steel in rings as to reinforcing steel in accordance with DIN 488. The difference here is ductility class A (normal ductility).

Cold-ribbed ring material is available in the nominal diameters 06, 08, 10 and 12 mm.

Reinforcing steel in rings is standardized in DIN 488 Part 3 (08-2009); In addition, the approvals of the Institute for Structural Engineering (DIBt) apply.

The name for cold ribbed reinforcing steel in rings is Reinforcing steel in rings B500A.

The following mechanical values ​​are prescribed by DIN 488:

• Yield strength Re 500 N / mm²
• Tensile strength Rm 550 N / mm²
• Yield strength ratio Rm / Re> = 1.05
• Total elongation at maximum load Agt> = 2.5%

Web link

• Reinforcing steel lexicon: http://www.kummetat.de/ksh/service/glossar/glossar.html