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Stock AISI 4140 L80 Cold Drawn Quenched Tempered Seamless Alloy Steel Tube for Pup Joint

Group Hollow Bars
Min. Order 1 piece
Terms of Payment all
Update Time 2020-06-22
Item specifics
Steel GradeL80 4140
OD3.908ich
ID2.959ich
Length4ft, 10ft, 20ft
Stock70 tons
ProcessCold Drawn+Stress Relieved+Quenched and Tempered
Standard
Products Details:

Standard: API 5CT or API 6A or ASTM A519

Apply to making pip joint for oil and gas services.

Process: Cold Drawn+Stress Relieved+Quenched and Tempered

Surface&End: Black Surface with plaint end.

Guarntee the drift testing(Drift Size: Dia2.9inch, Length42inch

Steel Grade

OD&Tolerance

ID&Tolerance

Length

Tons

PCS

L80 4140

88.9mm ; 3-1/2inch

7.34mm

4ft

21.3

270

10ft

1.9

63

20ft

32.7

207

Chemical composition Tested:

Steel Grade

C

Si

Mn

P

S

Cr

Ni

Mo

Cu

V

4140

0.38

0.23

0.80

0.011

0.002

1.0

0.02

0.18

0.02

0.01

Mechanical Properties Tested:

Tensile Strength/ Rm Mpa

Yield Strength/ ReH

Mpa(0.2%)

Elongation/A in 2″

Reduction Area A%

Hardness(BHN)(ASTM E10):

725

641

25

62

225

Charpy V Notch Impact(J)(ASTM E23):

Steel Grade

Charpy impact(J)

@21℃

Charpy impact(J)

@-29℃

Charpy impact(J)

@-60℃

Longitudinal

Longitudinal

Longitudinal

AISI 4140

199/204/211

175

139/140/136

138

177/181/189

182

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