• Integral Spiral Blade Stabilizer
• Integral Straight Blade Stabilizer
• Integral Sleeve Spiral Stabilizer
• Spherical Stabilizer
• Roller Reamer
• Non-magnetic Drilling Material
• Drill-stem Sub
• Forging Stabilizer
• Forging Roller Reamer Body
• Forging Crossover
• BOP Forgings
• Forging tool joints of drill pipe
• Cutter/Pin/Block parts of roller reamer
• Lifting Cup
• Polycrystalline diamond compact (PDC) cutter
Forging Stabilizer

Chemical Composition

Designation

C

Si

Mn

P

S

Cr

Mo

Ni

Cu

Al

4145H(MOD)

0.42-
0.49

0.15-
0.35

1.00-
1.25

Max.
0.025

Max.
0.020

1.20-
1.35

0.30-
0.35

Max.
0.25

Max.
0.35

Max.
0.05

Mechanical Properties and Tests Standard

Minimum Yield Strength psi

Minimum Tensile Strength psi

Elongation, Minimum, With Gauge Length Four Times Diameter percent

Brinell Hardness

Minimum Charpy V notch
Ftˇ¤lbf

115,000

140,000

15

285-341

40
Specifications
OD(Crown)
OD(Neck)
ID
L.O.A.
7-3/4"X6-1/4"X2-1/4"X86-1/2"
7-3/4"
6-1/4"
2-1/4"
86-1/2"
8-1/2"X6-1/2"X2-1/4"X86"
8-1/2"
6-1/2"
2-1/4"
86"
8-1/2"X6-3/4"X2-1/2"X86"
8-1/2"
6-3/4"
2-1/2"
86"
9-3/4"X6-1/2"X2-1/4"X87"
9-3/4"
6-1/2"
2-1/4"
87"
9-3/4"X6-3/4"X2-1/4"X87"
9-3/4"
6-3/4"
2-1/4"
87"
10-1/2"X8"X2-1/2"X95"
10-1/2"
8"
2-1/2"
95"
10-5/8"X8"X2-1/2"X95"
10-5/8"
8"
2-1/2"
95"
12-1/4"X8-1/4"X2-1/2"X95"
12-1/4"
8-1/4"
2-1/2"
95"
12-1/4"X9-1/2"X2-13/16"X95"
12-1/4"
9-1/2"
2-13/16"
95"
12-3/4"X8-1/4"X2-1/2"X101"
12-3/4"
8-1/4"
2-1/2"
101"
12-3/4"X9-1/2"X2-13/16"X92"
12-3/4"
9-1/2"
2-13/16"
92"
17-1/2"X8-1/4"X2-13/16"X103"
17-1/2"
8-1/4"
2-13/16"
103"
17-1/2"X9-1/2"X2-13/16"X103"
17-1/2"
9-1/2"
2-13/16"
103"
23"X9-1/2"X2-13/16"X117"
23"
9-1/2"
2-13/16"
117"
26"X9-1/2"X3"X120"
26"
9-1/2"
3"
120"
28"X10-1/4"X2-3/4"X116"
28"
10-1/4"
2-3/4"
116"

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