AISI 4140 Hot Rolled Alloy price Round Stee factory l

Product Description

AISI 4140 Hot Rolled Alloy Round Steel 

Product Description


Dia 10mm~800mm



Hot Rolled


EAF+LF+VD+ Forged/Hot rolled + Heat Treatment (Annealed,A Normalized, Q+T)

Heat treatment

Normalized ; Annealed ; Quenched ; tempered

Surface Condition

Black surface ; Grinded ; CZPT d;Turned


100% CZPT sonic according to the test standards:SEP1921-84,CLASS C/c or D/d

Payment Terms


Trade Terms



Standard seaworthy packing or as CZPT er required


Typical applications for are forging dies, forging die inserts, hot gripper dies, hot nut tools, hot header dies, brass forging
and pressing dies, aluminum base dies, aluminum casting and extrusion dies, zinc die casting dies, extrusion mandrels, plastic
molds, cores, die holder blocks, hot press dies, hot work punches, etc.

AISI SAE 4140 alloy steel is a chromium molybdenum alloy steel specification widely used in general purpose high tensile steel for components, like axles, shafts, bolts, gears and other applications. Similar to alloy grade AISI 4130 chrome moly alloy steel but with a slightly higher carbon content. The higher carbon content of AISI 4140 steel gives greater strength and heat treatment capabilities in comparison to AISI / ASTM 4130 alloy steels, however it does have inferior weldability characteristics.


-Dimension: Diameter4-1600mm, length below 16m

-Delivery Conditions

       Cold drawn 4-100mm

       Hot rolled 12-320mm

       Hot forged 130-1600mm

       Peeled: 30-160mm

       Grind: 4-600mm

Turned: 130-1200mm

-Surface: Black, smooth, turned, peeled, grind, polished, oiled and painted surface or other anti-corrosive treatment per CZPT ers’ requests

-End: Beveled, plain end, vanished or plastic caps can be provided if necessary


ASTM alloy 4140 steel bar, flat or plate material can be used for as wide variety of applications where greater toughness and wear resistance is needed over lower carbon grades.

Typical applications for 4140 tool steel uses include:

Components, Adapters, Arbors,strippers, holder blocks, mold bases, ejectors, back up and support tooling, fixtures, jigs, molds, cams, drill collars, Axle Shafts, Bolts, Crankshafts,stubs, couplings, reamer bodies, axles, shafting, piston rods, rams, hydraulic machinery shafts, gears, sprockets, gear racks, chain links, spindles, tool bodies, tool holders, tie rods, Connection Rods, Chuck Bodies, Collets, CZPT Pins & Rolls, Ejector Pins, Forks, Gears, Xihu (West CZPT ) Dis. Rods, CZPT ulic Shafts & Parts,Lathe Spindles, Logging Parts, Milling Spindles, CZPT Shafts, Nuts, Pinch Bars, Pinions, Pump Shafts,boring bars,tracks, slides, wear strips or parts, forming dies, brake dies, trim dies, bolsters, machinery parts and components, etc.
























Tensile CZPT


Yield CZPT




Reduction of Area



Hardness after Hardened(HB)






≥63 J



Properties Metric Imperial
Tensile strength 655 MPa 95000 psi
Yield strength 415 MPa 65710 psi
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Elastic modulus 190-210 GPa 27557-3 0571 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 25.70% 25.70%
Hardness, Brinell 197 197
Hardness, Knoop (converted from Brinell hardness) 219 219
Hardness, Rockwell B (converted from Brinell hardness) 92 92
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) 13 13
Hardness, CZPT (converted from Brinell hardness) 207 207
Machinability (based on AISI 1212 as 100 machinability) 65 65

Detailed Photos


Packaging & CZPT

20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High)
40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High)
40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High)
20feet container load 25tons coils whose length is under 5.8m
40feet container load 25tons coils whose length is under 11.8m

Delivery Details : Use trays to facilitate loading and unloading
Standard Export Seaworthy Package.Suit for all kinds of transport,or as required

Company Profile

Based on “Honesty Always be rewarded. ” to do steel export business. Our company already has done steel exports business for 10 years. Specializing in steel plate, steel bar, steel tubes, steel plate cutting parts, and steel deep processing service. With CZPT competitive price and best service, we are committed to your one-stop service of steel material. Our clients are all over the world, USA, Canada, Brazil, Mexico, Venezuela, Australia, Greece, Middle CZPT , CZPT Asia, and Africa.

In 2016, ZheJiang Steel CZPT g CZPT CZPT Co., Ltd is separated from the export department of ZheJiang Rongshenghui CZPT Co.,Ltd. After CZPT -term efforts, now we have a steel plate cutting factory, with 18 CNC cutting machines and 3 punching machines, and a heat treatment factory with 3 electric heat furnaces. Set up two offices in HangZhou City and HangZhou City. The company has developed into an integrated trader and manufacturer with the ability to export, import, process, logistics and distribution. The CZPT d management brings high quality to automobile and wins good reputation from market and clients.



Our Service

Pre-sale Service:
1.Good quality + Factory price + Quick response + CZPT ble service
2.100% responsible for the quality:all the products are produced by CZPT professional workman and we have a high-work-effect foreigh trade team.
3.We have enough stock and can deliver in short time.
4.Customized designs,colors,sizes and logos are welcome,responsiveness to CZPT ers’ requirements.

After-sale Service:
1.We will count cheapest shipping cost and make invoice to you at once.
2.On time delivery.
3.Provide real pictures of loading container,email you the tracking NO. and help to chase the products until the goods arrive you.
4.24 hours online service,if any question,please contact us at anytime in your convenience.

Why Choose Us

1. More than 10 years Professional steel export service. Have own production line.
2. CZPT d CNC machine.
3. Low cost&Quick Delivery&High quality.
4. Integrity, strength and quality of products recognized by the industry.
5. Most of CZPT clients are international, the domestic well-known enterprises.
6. Has a complete scientific quality management system. 
7. Can meet any requirements for all kinds of sheet metal processing with CZPT d equipment.


Q1: How can I get a sample to check your metal work quality?
Answer: After price confirmation, you can require for samples to check CZPT quality. We will provide you sample for free (value under USD35), as CZPT as you afford the express freight.

Q2: How CZPT can I expect to get the metal work sample?
Answer: After you pay the sample charges(if there is) and send us confirmed drawings, the sample will be ready for delivery in 5-7 working days. The samples will be sent to you via DHL, FedEx,UPS,TNT or EMS. It should arrive in 3-5 workdays. You can use your own express account or prepay us if you don’t have any account.

Q3: What about the leading time for metal work mass production?
Answer: CZPT ly, it depends on the order quantity. Normally, 15 workdays to 30 workdays after your deposit if no the samples are confirmed.

Q4: What will we do if the metal work quality is not ok ?
Answer: If the quality problem is caused by CZPT mistake, we will make replacement order for free or pay the back product charge and handling charge back to you.

More questions, please send the email to us