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SCM440 Alloy Round Bar 4140 1.7225

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Dongguan Bo Yunte Metal Co., Ltd

SCM440 Alloy Round Bar 4140 1.7225

Place of Origin : China
Brand Name : BYT
Model Number : SCM440
Certification : SCM440
Dimensions : 12-1000mm
Standard : AISI ASTM BS DIN GB JIS
Price : FOB 750 USD/TON
Packaging Details : base on Buyer‘s requirement
Delivery Time : 15 days
Payment Terms : L/C T/T
Supply Ability : 5000Ton
MOQ : 20Ton
Port : Shengzhen
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SCM440 Alloy Round Bar 4140 1.7225

1.Chemical Composition (%):

Grade

C

Si

Mn

P

S

Cr

Mo

42CrMo4

0.38-0.45

0.17-0.37

0.40-0.70

≤0.035

≤0.035

0.90-1.20

0.15-0.25

1.7225

0.38-0.45

≤0.40

0.60-0.90

≤0.025

≤0.035

0.90-1.20

0.15-0.30

4140

0.38-0.43

0.15-0.35

0.75-1.00

≤0.035

≤0.040

0.80-1.10

0.15-0.25

2.Available sizes:

Round: Dia. 10 – 1200mm

Flat: Thickness 10 – 120mm, width 305 – 2200mm

Delivery condition: Hot rolled or forged, Peeled or black surface, annealed or QT.

3.Properties:

One of the chromium, molybdenum, manganese low alloy steels noted for toughness, good torsional strength and good fatigue strength

4.Applications:

Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.

5.Heat Treatment:

Soft annealing: heat to 680-720°C, cool slowly.

Hardness after annealing: Max. 241 HB

Hardening: 820 - 850 °C

Normalizing temperature: 840-880°C

Tempering: 540-680°C

5.

Mechanical Properties in Quenched and Tempered Condition

Diameter (mm)

0.2% proof stress (N/mm²)

Tensile strength (N/mm²)

Elongation (%)

Reduction of area (%)

Notch impact energy (ISO-V) (J)

Up to 16

900

1100-1300

10

40

35

17–40

750

1000-1200

11

45

40

41–100

650

900-1100

12

50

40

101–160

550

800-950

13

50

40

161-250

500

750-900

14

55

40

6. Inspection:100% Ultrasonic according to the test standards:SEP1921-84,GR.3 CLASS C/C

7. Packing situation:standard seaworthy packing or as customer required

8. Delivery time: 10 days after order confirmed

9. Payment:T/T,D/P or L/C at sight.

10.Process:EAF+LF+VD ( necessary) UT+ Peeled +Turned + Heat Treatment (optional)

Note:

1. According to national standard (GB)for our products, if not, supply according to national standards(GB) or agreement.

2. We can not only provide electric furnace +LF+VD and electroslag re-melting(ESR)steel forging materials, but also forging products of piece, bar, etc.3. Our company is equipped with roll equipment and can provide our customers with roll billets or finished.

4. Please send us your detailed specifications when inquire. We will reply to you ASAP.

5. You can contact us if you have any questions.

Dongguan Bo Yunte Metal Co., Ltd. was established in 1999. Our company is located in Chang'an Town, Dongguan City, Guangdong Province.
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Our Products includes Cold Working Steel,Hot Working Steel,Alloy Tool Steel,Carbon Steel,Bearing Steel,Spring Steel
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P20+Ni/1.2738/718
P20/1.2311/3Cr2Mo
D3/1.2080/Cr12/SKD1
D2/1.2379/Cr12Mo1V1/SKD11
H11/1.2343/SKD6
H13/1.2344/4Cr5MoSiV1/SKD61
S136/1.2316/4Cr14MoV
420SS/4Cr13/1.2083
A2/1.2363/Cr5Mo1V
O1/1.2510/9CrWMn
S1
S7
L6
-------------------------------------------------------------------------------------------
AISI 1045, SAE 1045, S45C, C45, CK45
AISI 1050, SAE1050, S50C, C50, CK50
ASTM A36, A283, SS400, ST-37, S235JR, Q235, EN10025,
SK3
SK4
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SAE (AISI) 4140/DIN 1.7225/42CrMo4/JIS SCM440
SAE (AISI) 4340/DIN 1.6511/40CrNiMo4320
SAE (AISI) 8620/DIN 1.6523/20CrNiMo
SAE (AISI) 4320,DIN 1.5805,10NiCr5
---------------------------------------------------------------------------------------
M2
M7
M42
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Our steel reaches international quality standards. Besides, our company is equipped with large-sized vertical saw machines, horizontal saw machines, milling machines, grinding machines and other advanced equipment. All our products are carried out hardness tests, such as the ultrasonic flaw detection before shipment. Therefore, there is no quality problem. With more competitive price than other suppliers, our steel has good sales in the markets of North America, South America, East Europe, Southeast Asia, Africa, Oceania, the Middle East, East Asia and West Europe.
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With strong technical force, better reliability, high quality, competitive price, fast leading time and excellent after-sales service, we have gained a good reputation from our customers. Come On, everybody. Welcome to contact us and establish mutually beneficial and long-term business relationships with us!

Basic Information
Company Name:Dongguan Bo Yunte Metal Co., Ltd.
Main Products:Special Steel Plate,Tool Steel Round Bar,Hot Rolled Alloy Steel Round Bar,Plastic Mould Steel,Forged Round Steel Bar
Brands:boyunte
Number of Employees:101 - 200 People
AliExpress.com Store:
Trade & Market
Main Markets:North America
South America
Eastern Europe
Southeast Asia
Africa
Oceania
Mid East
Eastern Asia
Central America
Northern Europe
Southern Europe
Main Customers:DME,SB Metal
Total Annual Sales Volume:Above US$100 Million
Export Percentage:71% - 80%
Other Information
Number of R&D Staff:Less than 5 People
Number of QC Staff:5 - 10 People
Management Certification:ISO 9001:2000
QS-9000
ISO 14001:2004

Product Tags:

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SCM440

      

SCM440 Steel

      
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