9CR - Chemical Composition
Explore the chemical composition of this product grade. Click an element to view its min/max composition values.
General purpose pipe manufactured to ASTM Specification 519
Similar to 4140 (which has a lower carbon level), 9CR has improved hardenability and is more commonly used in the higher strength >= 110ksi condition.
Available in bar dimensions of 50.8 mm (2") to 762 mm (30")
Length range up to 9.14 m (30')
|Tensile Strength||689 MPa min||100,000 psi min|
|Yield Strength||552 MPa min||655 MPa max|
| ||80,000 psi min||95,000 psi max|
|Total Elongation Under Load||20.000 %||-|
|Hardness||22 Max HRC||-|
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