Alloy Steel with 4145h Hot Forged Structure Steel Plate Metal Sheet Pipe Bar

• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Check Detailed Description
• Technique: Forged
• Shape: Bar
• Surface Treatment: Black, Machined
• Model NO.: 4145h Forged
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Tool Steel Bar
• Transport Package: Nude Packing
• Specification: Diameter: 100-1300mm
• Trademark: Ningbo Ningshing
• Origin: China

Product Description

 

4145H 120 KSIasper API standard

AISI 4145H 120 KSI Alloy Steel Bar for Drilling Collar, Drill Pipe, Square Kelly, Lifting Sub, Stabilizer
Dimensions
Forged Round: dia.100-1300 mm.

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

 

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

 

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.

Applications
This low-alloy steel is used in heat treated condition with 120 KSI minimum yield strength for oil and gas equipments of well drilling, wellhead, Christmas tree, etc.

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