4145H steel

Short Description:

Description AISI 4145H 120 KSI Alloy Steel Bar for Drilling Collar, Drill Pipe, Square Kelly, Lifting Sub, Stabilizer Chemical Composition (%) C Si Mn P S Cr Mo Ni Cu 0.42 0.49 0.15 0.35 0.80 1.15 ≤ 0.020 ≤ 0.025 0.75 1.20 0.15 0.45 ≤ 0.25 ≤ 0.30 Dimensions Hot Rolled Forged Diameter (mm) 50-130 100-1300 Length (mm) 4000-10000 3000-10000 Delivery Condition EAF+LF+VD, Hot Rolled or Forged, Machined, Q+T, UT 100% P...

FOB Price: US $0.5 - 9,999 / Piece

Min.Order Quantity: 100 Piece/Pieces

Supply Ability: 10000 Piece/Pieces per Month

Port: Shenzhen

Payment Terms: L/C,D/A,D/P,T/T

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Description

AISI 4145H 120 KSI Alloy Steel Bar for Drilling Collar, Drill Pipe, Square Kelly, Lifting Sub, Stabilizer

Chemical Composition (%)

C	Si	Mn	P	S	Cr	Mo	Ni	Cu
0.42 0.49	0.15 0.35	0.80 1.15	≤ 0.020	≤ 0.025	0.75 1.20	0.15 0.45	≤ 0.25	≤ 0.30

Dimensions

	Hot Rolled	Forged
Diameter (mm)	50-130	100-1300
Length (mm)	4000-10000	3000-10000

Delivery Condition

EAF+LF+VD, Hot Rolled or Forged, Machined, Q+T, UT 100% Passed

Mechanical Properties

	Tensile Strength PSI (MPa)	Yield Strength PSI (MPa)	Elongation	Reduction of Area	Hardness
Min.	140000	120000	14%	45%	30 HRC (285 HB)
Max.	——	——	——	——	36 HRC (341 HB)

Characteristics

AISI / SAE 4145H grade is a low-alloy steel containing chromium and molybdenum as strengthening agents. The steel has good fatigue strength and impact toughness in low temperature, weldability and machinability.

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