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ASTM A322 4140 alloy steel bar application

ASTM A322 4140 alloy steel bar

ASTM A322 4140 alloy steel bar is a chromium-molybdenum alloy steel that can be oil hardened to relatively high hardenability. The chromium content provides good hardness penetration, and the molybdenum imparts uniformity of hardness and high strength.
ASTM A322 4140 alloy steel bar application: ASTM A322 4140 alloy steel bar is a semi-finished product for shaft, piston rod, grinding rod, etc. After cutting, grinding or hard chrome coating, and machining, it becomes final product.
Size range of ASTM A322 4140 alloy steel bar:
1. Round steel bar:
Black: 8mm – 750mm
Peeled: 8mm – 710mm
Turned & Polished: 10mm – 127mm
Precision Ground: 10mm – 110mm
As Rolled: 24mm – 300mm
2. Hexagonal: 19.05mm - 65mm
Chemical composition of ASTM A322 4140 alloy steel bar (max %):

Grade	C	Si	Mn	Cr	Mo	P	S	Cu
ASTM A322 4140	0.38~0.45	0.17~0.37	0.50~0.80	0.90~1.20	0.15~0.25	0.035	0.035	0.30

KATALOR is one of the professional ASTM A322 4140 alloy steel bar supplier and manufacturer in China. Any needs about the ASTM A322 4140 alloy steel bar, such as ASTM A322 4140 alloy steel bar’s price, ASTM A322 4140 alloy steel bar’s quality, please contact us at any times.