AISI 4140 L80 Alloy Steel Bar

Model NO.
AISI 4140 L80
Composition
18crnimo7-6 1.6587
Technique
Forged/Hot Rolled/Cold Drawn
Shape
Round/Flat/Block/Square/Bar/Plate
Surface Treatment
Polished
Special Use
High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
Application
Structural Steel Bar
Certificate
ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
Quality Inspection
Ut, Chemical Composition, Physical Properties/SGS
Length
3-5.8m, or as Per Request
Heat Treatment
Quenched,Tempered,Annealed
Surface Require
Black,Grinding,Bright,Polish
Transport Package
Seaworthy Packing/Wooden Box or at Client's Requir
Specification
Customized
Trademark
OEM & ODM
Origin
China
HS Code
722840
Production Capacity
1000 Ton/Month
Reference Price
$ 765.00 - 990.00
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Product Description

Product Description

AISI 4140 L80 Alloy Steel
AISI 4140 80K, PSL 3, API 5CT Standards, NACE MR0175:2015  

Chemical Composition

Grade C Mn Cr Mo Si P S Ni Cu V H max. ppm
Min. 0.380 0.750 0.800 0.150 0.150 - - - - - -
Max. 0.430 1.000 1.100 0.250 0.350 0.025 0.025 0.250 0.300 0.300 2.000
 

Heat Treatment

Austenizing temperature Time Tempering temperature Time
1600 ±25ºF
(871 ±14ºC) 		Min. 60 minutes 1250 ±50ºF
(677 ±27ºC) 		Min. 60 minutes
Oil or Polymer or Water. For Water Quenching, the temperature of water shall not exceed 38ºC   ( 100ºF )  at start of quench. For bath-type quenching, the temperature of water shall not exceed 49ºC(120ºF) at any time during the quench cycle.


Mechanical Properties
as per ASTM A370 -20

 
Yield strength
  		Tensile strength minimum Elongation in
2 "  (minimum) 		Reduction Area
 (minimum)
Min. 80,000 psi (552 MPa)
Max. 95,000 psi (655 MPa) 		100,000 psi (690 MPa) 18% 35%
 
Inspection
  1. Specimen test location & QTC
  2. Charpy V-notch impact at 21ºC / -32ºC / -60ºC
  3. Hardness as per ASTM E10-18: On surface / 1 "  below surface
  4. Volumetric NDE 100% - Ultrasonic
  5. Minimum hot work reduction ratio 4.0 to 1
  6. Grain size should be #S or Finer as per ASTM E112 - 13
  7. Surface inspection
Size Round Dia 10-500mm
Plate/Flat/Block Thickness
5mm-200mm
Width
100mm-2500mm
Heat treatment As rolled, Normalized.Annealed, Q+T
Surface condition Black; Machined;
Delivery condition Forged; Hot rolled; Cold drawn
Test Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness
Payment terms T/T;L/C;/Money gram/ Paypal
Trade terms FOB; CIF; C&F; etc..
Delivery time 30-45 days
Application Its most common applications are for stubs, gears, shafts for the wind industry, crankshafts, rims, reducers, automobile gear boxes and pieces for industrial and agricultural vehicles.
 
Main Products
 
Alloy Steel 4140,4142,42CrMo4,1.7225,SCM440,4130,SCM430,25CrMo4,1.7218,34CrNiMo6,
1.6582,4340,SNCM439,36CrNiMo4,1.6511,SACN645,1340,SMn438,SNC236,
Tool Steel H13,1.2344,SKD61,D2,SKD11,1.2379,1.2510,01,SKS3,95MnWCr5,D3,SKD1,1.2419,
SKS31,H21,SKD5,1.2581,P20,35CrMo7,1.2738,1.2316,M2
Bearing Steel GCr15,52100,SUJ1,SUJ2,100Cr6,1.2067,55C,8620,4320,9310,440C,M50
Spring Steel 9260,SUP6,SUP7,1.7108,54SiCr6,1.7102,5155,SUP9,1.7176,5160,1.7177,6150,
SUP10,51CrV4,1.8159
Stainless Steel 321,sus321,1.4541,304,SUS304,1.4301,410,SUS410,1.4006,420,1.4021,1.4028,
434,1.4113,316L,SUS316L,1.4435,630,1.4542,431,1.4057
Detailed Photos
AISI 4140 L80 Alloy Steel Bar AISI 4140 L80 Alloy Steel Bar

 

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AISI 4140 L80 Alloy Steel Bar AISI 4140 L80 Alloy Steel Bar
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AISI 4140 L80 Alloy Steel Bar
Application
AISI 4140 L80 Alloy Steel Bar
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AISI 4140 L80 Alloy Steel Bar
 

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