API 5CT AISI 4140 L80 Qt Steel Solid Round Bars / 4140 L80 Quenched Tempered Round Steel Bar

• Type: Alloy Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Alloy: Alloy
• Special Use: Mold Steel, Free Cutting Steel, Cold Heading Steel
• MOQ: 1ton
• Model NO.: AISI 4140 L80
• Length: 1-9m as Required
• Surface: Smooth
• Condition: Heat Treatment / Qt
• Products: Qt Steel Round Bar
• Grade: AISI 4140 L80
• Transport Package: Standard Sea Worthy
• Specification: 5mm to 310mm
• Origin: China
• Production Capacity: 3000tons/Month

Product Description

 

API 5CT AISI 4140 L80 QT Steel Solid Round Bars / 4140 L80 Quenched Tempered Round Steel Bar

This is a controlled yield strength material that manufactured to API specification 5ct. L80 is usually used in wells with sour (hydrogen sulfide) environments, casing, production tubing, coupling stock, pup joints, and various downhole accessories. L80 (API 5CT) is a medium carbon steel and is equivalent to SAE 4140.

Process: Cold Drawn+Stress Relieved+Quenched and Tempered

Surface: Black Surface

End: paint as your marks

 

AISI 4140 L80 P110 QT STEEL ROUND BARS 
SEAMLESS STEEL PIPES / HOLLOW BAR
2.5 to 15inch OD 0.375inch to 4.0inch

1.AISI 4140 chemistry

Carbon %	0.38 - 0.43
Manganese %	0.75 - 1.00
Phosphorus, max %	0.04
Sulfur, max %	0.04
Silicon %	0.15 - 0.35
Chromium %	0.80 - 1.10
Molybdenum %	0.15 - 0.25

2.Heat conditions for A519-4140 

Condition	Grade	Medium
Annealed or normalized	A519-4140	Air
Quenched and tempered	A519-4140	Polymer or oil

3.Non Metal Inclusion(ASTM E45 method A):

A		B		C		D		Macroscopic Structure:
Heavy	Thin	Heavy	Thin	Heavy	Thin	Heavy	Thin	Ordinary Porosity	Centre Porosity	Segregation
0	0.5	0	0.5	0	0	0.0	1.0	1.0	0.5	0.5

4.API 5CT L80 CASING PIPES & TUBES TYPICAL MECHANICAL PROPERTIES:

Tensile Strength	655 MPa min	95,000 psi min
Yield Strength	552 MPa min	655 MPa max
	80,000 psi min	95,000 psi max
Total Elongation Under Load	0.500 %	-
Hardness	23 Max HRC	241 Max HBW