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AISI 4145h Modified Steel Hollow Bar / AISI 4145h API 7-1 Hollow Drill Collar Billet

China AISI 4145h Modified Steel Hollow Bar / AISI 4145h API 7-1 Hollow Drill Collar Billet, Find details about China Hollow Bar, Drill Pipe from AISI 4145h Modified Steel Hollow Bar / AISI 4145h API 7-1 Hollow Drill Collar Billet

Model NO.
AISI 4145H MOD
Forging Tolerance
-0/+3mm
Standard
API Spec 7-1
Certification
CE, RoHS, ISO 9001:2000, ISO 9001:2008
Products
Hollow Bar
Standards
API Spec 7-1
Grade
AISI 4145h
Transport Package
Standard Sea Worthy
Origin
China
Model NO.
AISI 4145H MOD
Forging Tolerance
-0/+3mm
Standard
API Spec 7-1
Certification
CE, RoHS, ISO 9001:2000, ISO 9001:2008
Products
Hollow Bar
Standards
API Spec 7-1
Grade
AISI 4145h
Transport Package
Standard Sea Worthy
Origin
China
AISI 4145H Modified Steel Hollow Bar / AISI 4145H API 7-1 Hollow Drill Collar Billet 

1.Material Introduction
AISI 4145H is a chromium molybdenum quality alloy steel specification. As a high tensile steel grade AISI 4145H is primarily supplied in the hardened and tempered condition to 30-36HRc range to AISI 4145H modified. With a slightly higher carbon content AISI 4145H is similar to AISI 4140 in that it offers good ductility, shock resisting characteristics combined with resistance to wear..

2.Application
AISI 4145 is more popular in larger diameters due to its increased strength and hardenability. It is commonly used in the down hole drilling tools such as drill collars. Other applications include components exposed to heavy strain, such as shafts, gear, bolts etc. AISI 4145H can also be used in hardened condition as machine parts exposed to heavy wear.

3.EQUIVALENT STANDARDS
EN 1.7225
ASTM A255
UNS G41450
AISI 4145H Modified

4.Chemical composition of 4145H 
CMnCrMoSiNiP maxS
0.43-0.480.85-1.100.80-1.100.15-0.250.10-0.350.250.0350.04

5.Property standard of AISI 4145H
BY MM
Dill Collar OD RangeYield Strength Tensile StrengthElongation 
mmMpa MinMpa Min% Min
70 to 98.482789613
101.6 to 174.675882713
177.8 to 279.468975813

BY INCHE
Dill Collar OD RangeYield Strength Tensile StrengthElongation 
inchKsi minKsi min% Min
2-3/4" to 3 7/8"12013013
4" to 6-7/8"11012013
7" to 11"10011013

6.Supplied Sizes Range
Diameter :70mm to 800mm        
Length:100mm to 9450mm (31FT)  
Condition: Hot Rolled, Polished, Ground, Rough Turned, QT        
Shape:Round,Square , Forging,Hollow Bar

7. standard:API Spec 7-1 etc
8.Suitable for many Oil Field tools including Drill Collars, Stabilizer Forgings, Drill Pipe, Rotary Subs ect
9.Hardness Range: 285-340HB

AISI 4145h Modified Steel Hollow Bar / AISI 4145h API 7-1 Hollow Drill Collar Billet
AISI 4145h Modified Steel Hollow Bar / AISI 4145h API 7-1 Hollow Drill Collar Billet
AISI 4145h Modified Steel Hollow Bar / AISI 4145h API 7-1 Hollow Drill Collar Billet
 

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