MATERIAL DESCRIPTION

AISI 4330 V is a chromium, nickel, molybdenum, vanadium high strength low alloyed steel suitable for downhole tools and drilling jars. It offers improved hardenability and the ability to achieve higher tensile strengths and impact.

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: ASTM A29/ 29M (4330V)

Mechanical Properties: BAR

YIELD STRENGTH
RP0.2
MPA
TENSILE STRENGTH
RM
MPA
ELONGATION
[%]
HARDNESS
[HBW]
IMPACT
CHARPY-V, -20ºC
[J]
150KSI MIN.  1034  1138  15  341-388  32

Heat Treatment

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

Weldability

Better than AISI 4145, but still challenging.

AISI 4330 V MOD YLD 150 KSI MIN ROUND BAR

DIAMETER
105 MM
133.35 MM
155 MM
180 MM
220 MM
254 MM
260 MM

* NS1 THROUGH THICKNESS HARDNESS