RWA 1584-20 2.0 Main stud kit.
2.0 Main Stud Kit RWA1584-20
ARP manufactures fasteners from a wide assortment of materials ranging from popular stainless steel and 8740 chrome moly to exotic alloys that have been developed to handle space travel.
You should also know that there are grades within specific alloys. For example, 8740 is available in four grades:
- SDF (guaranteed seamless and defect free).
- CHQ (cold head quality).
ARP uses only the first two (SDF and CHQ), even though they cost more than double “Aircraft” quality.
8740 Chrome Moly: Until the development of today’s modern alloys, chrome moly was popularly considered a high strength material. Now viewed as only moderate strength, 8740 chrome moly is seen as a good tough steel, with adequate fatigue properties for most racing applications, but only if the threads are rolled after heat-treatment, as is the standard ARP production practice. Typically, chrome moly is classified as a quench and temper steel, that can be heat-treated to deliver tensile strengths between 180,000 and 210,000 psi.
|Dimensions||6 × 4 × 2 in|
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