Blackline Heavy Duty Group 1 Halfshaft 725mm Long - 18 Tooth - Ford English Axle

Blackline Heavy Duty Group 1 Halfshaft 725mm Long - 18 Tooth - Ford English Axle

  • £130.00
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You are buying 1 X Halfshaft

Blackline Heavy Duty Group 1 Halfshaft 18 tooth - Suits Non semi floating halfshaft flange Please see: https://shopbhp.com/products/blackline-ford-english-axle-group-1-end-flange

All blackline halfshafts are manufactured from 4340 allot steel and have induction hardened teeth to Rockwell 50 HRC specifications. 4340 is about twice as strong as 1040 (the material which OEM halfshafts are normally manufactured from). It has a high degree of ductility to absorb shock loadings of abrupt acceleration, taking some loads off the differential and CWP.  However, it has a very high yield strength to sustain high torque loads without failure. 4340 is the ideal halfshaft material. 

The following charts show the yield and tensile strength, and the yield torque for a typical 30mm diameter 4340 halfshaft.

Grade Yield Strength (Psi) Tensile Strength (Psi) Material Yield Torque (lb-ft)

1340 63,000
102,000
   
1040 106,000
120,000
1040
2,835
1541 164,000
181,000
1541 3,818
4140
136,000
160,000
   
4340
210,000
228,000
4340
4,889

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