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aisi 4140 alloy steel round bar

aisi 4140 alloy steel round bar

    Unit Price: 800~1100 
    Min. Order: 5 tons Metric Ton
    Delivery Time: 30 Days
    Packaging: Carton + Wooden Box
    Productivity: 50000 tons
    Brand: LE REN
    Transportation: Ocean,Land,Air,Express,Express
    Place of Origin: China
    Supply Ability: 3000 pices per month
    Certificate: ISO9001
    HS Code: 72283090
    Port: Qingdao,Shanghai,Tianjin

Basic Info

Model No.: aisi 4140

Product Description

aisi 4140 alloy steel round bar

Our company is a manufacturer of aisi 4140 alloy steel bar including aisi 4140 alloy steel round bar, aisi 4140 alloy steel square bar, aisi 4140 alloy steel flat bar, aisi 4140 square alloy steel bar and aisi 4140 hexagonal alloy steel bar.

What is aisi 4140 steel? aisi 4140 steel is a Chromium-Molybdenum through-hardening steel of medium hardenability. It is a general purpose high-tensile steel with medium strength level and good impact properties. Similar to aisi 1045 steel grade and aisi 5140 steel grade, the y are all medium carbon steel.

The difference between aisi 1045 steel material and aisi 4140 steel material: aisi 4140 steel has alloy element, it is kind of alloy steel bar. After heat treatment, aisi 4140 steel material can get between mechanical properties.

aisi 5140 vs aisi 4140: aisi 4140 steel grade has better hardenability than aisi 5140 steel material. After quenching and tempering, aisi 4140 can be whole pre hardened from core to side.

aisi 4140 can be used for various applications which require greater toughness and wear resistance. Typical applications include strippers, hold blocks, mold bases, ejectors, back up and support tooling, fixtures, jigs, molds, cams, drill collars, bolts, stubs, couplings, reamer bodies, axles, shafting, piston rods, rams, hydraulic machinery shafts, gears, sprockets, gear racks, valves, chain links, spindles, tool bodies, tool holders, tie rods, boring bars, guides, tracks, ways, slides, wear strips or parts, forming dies, brake dies, trim dies, bolsters, machinery parts and components.


aisi 4140 steel spec / aisi 4140 steel specifications:

1. Chemical composition of aisi 4140 steel:

Materail

Chemical Composition %

ASTM/SAE/AISI

C

Si

Mn

S

P

Cr

Mo

Aisi 4140 / sae 4140 / astm 4140

0.38-0.43

0.15-0.35

0.75-1.00

0.035 max

0.035 max

0.80-1.10

0.15-0.25

2. aisi 4140 steel equivalent steel grade:

GB

ASTM/SAE/AISI

DIN

SCM

AS /NZS1444

42CrMo

Aisi 4140 / sae 4140 / astm 4140

42CrMo4 / 42CrMoS4

SCM440

AS 4140

3. aisi 4140 steel sizes:

aisi 4140 steel bar shapes

aisi 4140 steel bar sizes range

aisi 4140 steel bar tolerance

aisi 4140 steel round bar

8mm to 100mm for 4140 cold drawn steel round bar

h9 h10 h11

-0.05mm/+0mm min

30mm to 100mm for 4140 peeled steel round bar

h9 h10 h11

-0.02mm/+0mm min

100mm to 300mm for 4140 turned steel round bar

+/-2mm max

300mm to 800 for 4140 forged steel round bar

+/-10mm max

aisi 4140 steel square bar

(8*8)mm to (100*100)mm

h9 h10 h11

-0.05mm/+0mm min

aisi 4140 steel flat bar / 4140 steel rectangular bar

(8*20)mm to (80*100)mm

+/-0.1mm

aisi 4140 steel hex bar / octagon aisi 4140 steel

16mm to 75mm

h9 h10 h11

4. Weight of aisi 4140 steel:

Weight of aisi 4140 steel round bar

0.00617*D*D*Length

Weight of aisi 4140 square steel bar

0.00785*D*D*Length

Weight of aisi 4140 hex bar

0.0068*D*D*Length

5. aisi 4140 steel microstructure:

aisi 4140 steel bar grain size: 5 to 8

aisi 4140 steel nonmetal Impurity:

A

B

C

D

T

H

T

H

T

H

T

H

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

6. Processing of aisi 4140 steel:

We are a factory to process all kinds of steel bars on surface, size and microstructure. With complete production and processing facilities, we can supply all kind of pre heat treated aisi 4140 steel bar and pre machining aisi 4140 steel bar as following:

1) Heat treatment of aisi 4140 steel

Oil quenching 4140 steel / 4140 normalizing steel / pre hardened 4140 steel / annealing 4140 steel / stress relieving 4140 steel / 4140 qt steel / flame hardening 4140 steel / 4140 steel induction hardening / case hardening 4140 steel / aisi 4140 oil quenched / austempering 4140 steel / 4140 steel water quenched / nitriding 4140 steel / milling 4140 steel

After heat treatment, aisi 4140 steel bar can get better heat treated aisi 4140 steel properties, for example:

aisi 4140 steel quenched and tempered properties:

Yield strength of aisi 4140 steel: 930MPa min

Tensile strength of aisi 4140 steel: 1080MPa min

Elongation of aisi 4140 steel: 12% min

Reduction area of aisi 4140 steel: 50% min

Rockwell hardness of aisi 4140 steel: 32HRC min

Brinell hardness of annealed aisi 4140 steel: 217HB max

Vickers hardness of aisi 4140 steel: We can also guarantee the Vickers hardness based on your special requirements.

2) Machining aisi 4140 steel:

knurling 4140 steel / tapping 4140 steel / grinding 4140 steel / turning 4140 steel / threading 4140 steel / cutting 4140 steel / drilling 4140 steel / forging 4140 steel / laser cutting 4140 steel / reaming 4140 steel / stick welding rod for 4140 steel / bending 4140 steel / brazing 4140 steel / straightening 4140 steel / tg&p 4140 steel / polishing 4140 steel / cold drawing 4140 steel

After the machining, 4140 steel can get precision size, various surface, better roughness, straightness etc. 4140 steel can be used for axe, pins, knives, gun barrels, gears, bolts, washers, hammer, sword etc.

As a Chinese steel bar professional manufacturer and supplier of more than twenty years, with complete produce and processing facilities, advanced testing equipments and big stock of steel bar, we can supply aisi 4140 steel bar with good quality, competitive price, short delivery time and personalized customization. We welcome old and new customers to inquire to us for technical questions and demands.

SHANDONG LE REN SPECIAL STEEL CO., LTD.

 

Established in April, 2009, SHANDONG LE REN SPECIAL STEEL CO., LTD. is specialized in trading steel products and supplying technical service in domestic and international markets. Through ten years` rich experience, we have forged one professional team.

Adhering to "Beyond customers` expectation, Realizing staff`s dream" philosophy, our company is developing rapidly by supplying customers with good quality products and professional service. In the year 2016, our factory SHANDONG LE SHAN MACHINERY CO., LTD. built cold drawing, peeling, grinding production lines; annealing, normalizing, quenching & tempering heat treatment production lines; chamferring and threads rolling production lines. To guarantee the products quality, we also installed full sets of testing and inspecting machines. All of this urge us to meet the customer`s personalized demands.

Our major products includes cold drawn steel products such as steel bars and profiles, peeled steel bright bars, heat treated steel bars, threaded rods, high strength tie rods, prestressed anchor bolts in wind power industry and high strength anchor bolts.

The current annual productivity is 40000 tons, we aim to build 100000 tons high strength deformed bars and anchor bolts production line. Our products are widely used in machinery components, oil and gas, railways, bridges and mining etc industries. With the service philosophy, advanced production facilities, full sets of test and inspection equipment, we will keep improving to supply customers` better and better quality approved products and service.

Company Info

  • Company Name: SHANDONG LE REN SPECIAL STEEL CO., LTD.
  • Representative: WEI BAIGANG
  • Product/Service: Cold Drawn Steel Bar , Bright Steel Bar , Heat Treated Steel Bar and Tube , Threaded Rods , High Strength Steel Tie Rod , High Strength Steel Bolts
  • Capital (Million US $): 30,000,000 RMB
  • Year Established: 2009
  • Total Annual Sales Volume (Million US $): Above US$100 Million
  • Export Percentage: 71% - 80%
  • Total Annual Purchase Volume (Million US $): Above US$100 Million
  • No. of Production Lines: 8
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: 5 -10 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 5,000-10,000 square meters
  • Factory Location: NO. 10, JIULONG MOUNTAIN ROAD, DEVELOPMENT AREA,JINAN CITY, SHANDONG PROVINCE, CHINA
  • Contact Person: Ms. Angelina Chen
  • Tel: 86-0634-5648998
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