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5mm / 50mm AISI 4340 Cold Drawn Steel Bar For Machinery & Engineering Industry

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Address: No.25 Hongxiang Rd A area Industry Hongtang Jiangbei, Ningbo, Zhejiang Province

Contact name:Elle Wang (Wang Ling)

Ningbo Ningshing Special-Steel Group Co., Ltd.

5mm / 50mm AISI 4340 Cold Drawn Steel Bar For Machinery & Engineering Industry

Country/Region china
City & Province ningbo zhejiang
Categories Door Closers

Product Details

 

AISI 4340 Cold Drawn Steel Bar , Alloy Steel Round Bar for Machinery & Engineering Industry


 

Steel Grade:

4340

Application:

Machinery Steel,

Engineering Steel

Shape:

Round Bar

Standard:

AISI, SAE, ASTM

Dimension:

Φ 5-80 mm

Surface:

Black, Bright

Technique:

Cold Drawn

Ultrasonic Test:

100% UT Passed

 

 

Description:

 

 

Equivalence

AISI / SAE

DIN / W.Nr

JIS

GB

4340

34CrNiMo6

1.6582

SNCM439

40CrNiMoA

 

 

Chemical Composition (%)

C

Si

Mn

P

S

Cr

Mo

Ni

Cu

0.38

0.43

0.15

0.35

0.60

0.80

0.035

0.040

0.70

0.90

0.20

0.30

1.65

2.00

0.35

 

 

◆ Delivery Condition

EAF+LF+VD, Hot Rolled, Annealed, Cold Drawn, (Heat treatment, Surface Treatment)

UT 100% Passed

 

 

Mechanical Properties

 

Tensile Strength

PSI (MPa)

Yield Strength

PSI (MPa)

Elongation

Reduction

of

Area

Hardness

Min

980

835

12%

55%

As required

Max.

------

------

------

------

As required

 

 

Characteristics

AISI / SAE 4340 grade is a low-alloy steel containing chromium and molybdenum and

nickel as strengthening agents. The steel has good strength and toughness, hardenability and overheat resistance stability, also high susceptibility of flake formation and temper brittleness. Its poor weldability requires high temperature preheating and stress relieving, before and after process. It should be Hardened and tempered before application.

 

 

Applications

This low-alloy steel finds many applications where high strength, plasticity required such

as large and important parts requiring hardening and tempering as heavy load axle for

heavy machinery, axle with diameter over 250mm for steam turbine, axle of rotor wing

for helicopter, axle of turbo and turbine blade and heavy load transmission part for jet engine, fasteners and gear for crank axle. It’s also used for rotor spindle and blade

where temperature over 400℃. It can be used as important part with special properties

after nitriding and ultrahigh strength steel after low tempering isothermal quenching.  

 


 

 


 

What we can offer?

 

We offer a wide range of steel products in a wide variety of dimensions and executions,

acc.to the common international specifications or customerized.

Machining and heat treatment are available.

Also, we advise you in choosing the right materials.

 

 

-- 50,000 tons Stock

-- 7 warehouses and branches

-- 47 sets of vertical band saws

-- 100 sets of modern facilities

-- A group of QC technicians

-- Professional technical consulting

 

 

Shape Available

◆ Solid round bar

◆ Flat bar

◆ Square bar

◆ Hexagon bar

◆ Block

◆ Plate

◆ Sheet

◆ Wire rod

◆ Strip

 

 AISIDINJISStockApplication
Hot Work Tool SteelH111.2343SKD6

Die Casting Dies, Extrusion Dies, Hammer Dies,

Ram Dies,

Forging Dies

etc.

H131.2344SKD61
H101.2365SKD7 
——1.2367—— 
L61.2714 / 1.2713SKT4
H121.2606SKD62 
H211.2581SKD5
Cold Work Tool SteelD31.2080SKD1Cutting Tools, Punching Tools, Shear Bladers, Reamers, Thread Rolling Dies, Calipers, Sockets etc.
——1.2601~SKD11
D21.2379~SKD11
——1.2379 MODDC53 (Daido)
D61.2436—— 
O11.2510SKS3
O21.2842—— 
A21.2363SKD12 
S11.2550—— 
S71.2357—— 
——1.2767SKT6 
L21.2210—— 

Plastic

Mould Steel

P201.2311——      Mold Base,           Core & Cavity,         Bumper Mold             etc.         
P20+Ni1.2738——
P20+S1.2312——
——1.2316—— 
4201.2083SUS420J2
————NAK80 (Daido)

Alloy Steel

412025CrMo4 / 1.7218SCM420 

Shafts, Gears, Drillers, Chains, Bolts, Nuts, Pins, Suds, Keys, Bites, Crankshafts, Connecting Rods, Came, Couplings  etc.

413534CrMo4 / 1.7220SCM435 
413034CrMo4 / 1.7220SCM430
4140

   42CrMo4 / 42CrMoS4 /                1.7225             

SCM440
414241CrMo4 / 1.7223SCM440 
4145H———— 
4330V———— 
434034CrNiMo6 / 1.6582SNCM439 
511516MnCr5 / 16MnCrS5 / 1.7131  
512020MnCr5 / 20MnCrS5 / 1.7147SMnC420H 
514041Cr4 / 41CrS4 / 1.7035SCr440
862021NiCrMo2 / 1.6523SNCM220 
864040NiCrMo2-2 / 1.6546SNCM240 
——18CrNiMo7-6 / 17CrNiMo6 / 1.6587—— 
984036CrNiMo4 / 1.6511—— 
E7140041CrAlMo7-10 / 1.8509SACM1 
——34CrAlNi7 / 1.8550—— 
Bearing SteelE52100100Cr6 / 1.3505SUJ2

Bearing, Shafts

etc.

——100CrMn6 / 1.3520—— 
——100CrMo7-3 / 1.3536—— 
Spring Steel515555Cr3 / 1.7176SUP9 Springs
615051CrV4 / 1.8159SUP10 
926160CrSi7 / 1.7108—— 
Carbon Steel1010CK10 / C10E / 1.1121S10C Shafts, Chains, Bolts, Nuts, Pins, Suds, Keys, Bites, Came, Couplings  etc.
1020C22 / 1.0402S20C
1040CK40 / C40E / 1.1186S40C
1045CK45 / C45E / 1.1191S45C
1050CK50 / C50E / 1.1206S50C
1055CK55 / C55E / 1.1203S55C 
1064CK60 / C60E / 1.1221S58C 
Structural SteelA283S235JR / ST37-2 / 1.0037—— 

Building Structures,

Oil & Gas Platforms, Palm Oil Euipments,

Dump Trucks,

Transmission Towers

  etc..
 

A570S235JRG2 / RSt37-2 / 1.0038—— 
A573S235J2G3 / ST37-3 / 1.0116—— 
1020S275JR / ST44-2 / 1.0044STK400 
A501S275J2G3 / ST44-3 / 1.0144STK400 
——S355JR / 1.0045SN400B;C 
High Speed Tool SteelM21.3343SKH51

Reamer,

      End-mill,         

Hob, Cutter, Bite, Drill, Punch, Tap, Brooch

etc.

M71.3348—— 
M421.3247SKH59
M351.3243SKH55
T11.3355SKH2 
T151.3202—— 
T421.3207SKH57 

 

Note:

1). √ means we have stock

2). Available Size:

Round: Dia. 5.5-1500 mm

Flat: T. 6-120 mm x W. 60-810 mm

Block: T. 120-1200mm x W. 300-1800mm

Plate: T. 10-460mm x W. 1500-2300mm

3). Delivery Condition:

Smelting: EAF+LF+VD (+ESR)

Making: Hot rolled, Cold rolled, Forged, Cold Drawn

Heat Treatment: Untreated, Annealing, N+T, Q+T

Surface: Black, Peeled, Turned, Milled, Grinded, Polished

 

 

 

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