BS EN ISO 898–1 Grade 12.9

Description of Material

BS EN ISO 898-1 12.9 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. LoneStar Fasteners Europe offer a high quality fully traceable product, using feed material from accredited supply chains. We off origin specific material, with full certification meeting the specification and testing criteria detailed under BS EN ISO 898-1.

BS EN ISO 898–1 Grade 12.9: Forms

  LoneStar Manufacture 
Stud Bolts
Studding
Hexagon Headed Bolting
Socket Headed Bolting
Double Ended and Waisted Studs
Associated OEM Parts

BS EN ISO 898–1 Grade 12.9: Sizes and Threads 

  LoneStar Manufacture 
Metric Coarse
Metric Fine
Imperial UNC
Imperial 8UN
Imperial UNF
ACME
Metric sizes available Up to M100
Imperial sizes available Up to 6.00″

BS EN ISO 898–1 Grade 12.9: Chemical Composition

Carbon 0.20-0.55
Manganese
Phosphorus 0.025 % Max
Sulphur 0.025 % Max
Silicon
Chromium
Nickel
Molybdenum
Copper
Niobium
Titanium
Vanadium
Aluminium
Nitrogen 0.003 % Max

BS EN ISO 898–1 Grade 12.9: Mechanical Properties

All Sizes
Tensile Strength Min, MPa 1220
Yield Strength min, 0.2% offset MPa 1100
Elongation in min% 8
Reduction of Area min% 44
Hardness 39-44 HRC

 

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