AISI 4330V MODIFIED

• Heat treatment & weldability

  Heat Treatment

  Hardened at 840 to 870°C and tempered at 600°C.

  Weldability

  Better than AISI 4145, but still challenging.

• Chemical composition

  Weight %	C	Si	Mn	Cr	Mo	Ni	V	S	P
  Min.	0,28	0,20	0,75	0,70	0,35	1,65	0,05
  Max.	0,33	0,35	1,00	0,95	0,50	2.00	0,10	0,025	0,025

• Product Standards

  Product Standards: ASTM A29/ 29M (4330V)

• Mechanical Properties: Bar

  	Yield strength Rp0.2, MPa	Tensile strength Rm, MPa	Elongation [%]	Hardness [HBW]	Impact, Charpy-V, -20ºC [J]
  Min. (150 ksi)	1034	1138	15	341-388	32

Stocked products and dimensions

• Round bar stock – MIN YLD 150 KSI

  (30-36 HRC)

  DIA	DIA
  63 mm	220 mm
  95,25 mm	254 mm
  110 mm	285 mm
  5,5″	305 mm
  152 mm	320 mm
  180 mm	356 mm
  8″	368 mm
  8.25″	406,5 mm

  * NS1 THROUGH THICKNESS HARDNESS