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Bs En 42crmo4 Alloy Steel Products Sae 4140 ASTM AISI 4140 A193 B7 DIN1.7225 SCM440

Place of Origin CHINA
Brand Name OEM/ODM
Certification ISO
Model Number 42Crmo4
Minimum Order Quantity 1 ton
Price negotiable based on the quantity
Packaging Details Standard seaport packing or as custom request
Delivery Time 10-30 days
Payment Terms T/T, Western Union, L/C
Supply Ability 6000 tons per month
Product Details
Standard AISI, ASTM, BS, DIN, GB, JIS Length 1000-4000mm
Shippping Sea Freight MOQ 1 TON
Surface Black / Peeled / Polishing / Port Shanghai
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Alloy Steel Products Sae 4140 ASTM AISI 4140


Bs En 42crmo4 Alloy Steel Products


aisi sae 4140 alloy steel plate

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Product Description

42Crmo4 Alloy Steel Plate ASTM AISI 4140 High Strength Steel Plate DIN1.7225 SCM440 Alloy


AISI 4140 Alloy steel material stockholders and suppliers from China-MITTEL STEEL . we have more 16 years experience in 4140 steel plate, round bar, flat bar, square supply.AISI 4140 alloy steel is chromium, molybdenum, manganese containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. The following datasheet gives an overview of AISI 4140 alloy steel.

4140 alloy steel material is a high quality Quenched and Tempered Alloy Structural steel, It belong to the high quality medium carbon alloy steel, Oil Quenched & Tempered Hardenss is 28-34 HRC.4140 Annealing delivery hardenss less than 250HB.


Related Specifications ASTM A29/A29M DIN EN 10083/3 JIS G4053 GB GB/T 3077



Mechanical Properties of 4140 alloy steel

Properties Metric Imperial
1.Tensile strength 655 MPa 95000 psi
2. Yield strength 415 MPa 60200 psi
3. Bulk modulus (typical for steel) 140 GPa 20300 ksi
4. Shear modulus (typical for steel) 80 GPa 11600 ksi
5. Elastic modulus 190-210 GPa 27557-30458 ksi
6. Poisson’s ratio 0.27-0.30 0.27-0.30
7.Elongation at break (in 50 mm) 25.70% 25.70%
8.Hardness, Brinell 197 197
9.Hardness, Knoop (converted from Brinell hardness) 219 219
10.Hardness, Rockwell B (converted from Brinell hardness) 92  
11. Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) 13 13
12. Hardness, Vickers (converted from Brinell hardness) 207 207
13. Machinability (based on AISI 1212 as 100 machinability) 65 65


AISI 4140 alloy steel Chemical composition

ASTM A29/29M C Si Mn Cr Mo P S
4140 0.38~0.43 0.15~0.35 0.75~1.00 0.80~1.10 0.15~0.25 ≤0.035 ≤0.040
DIN WN-r C Si Mn Cr Mo P S
1.7225 0.38~0.45 ≤0.40 0.60~0.90 0.90~1.20 0.15~0.30 ≤0.035 ≤0.035
GB/T C Si Mn Cr Mo P S
42CrMo 0.38~0.45 0.17~0.37 0.50~0.80 0.90~1.20 0.15~0.25 ≤0.030 ≤0.030
BS C Si Mn Cr Mo P S
708M40 0.36~0.44 0.10~0.35 0.70~1.00 0.90~1.20 0.15~0.25 ≤0.035 ≤0.035
JIS C Si Mn Cr Mo P S
SCM440 0.38~0.43 0.15~0.35 0.60~0.85 0.90~1.20 0.15~0.30 ≤0.030 ≤0.030
Packaging & Shipping


Packing: Customized or Loose packing

Delivery Time: 30-60 days after payment


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Bs En 42crmo4 Alloy Steel Products Sae 4140 ASTM AISI 4140 A193 B7 DIN1.7225 SCM440 0

Bs En 42crmo4 Alloy Steel Products Sae 4140 ASTM AISI 4140 A193 B7 DIN1.7225 SCM440 1

Bs En 42crmo4 Alloy Steel Products Sae 4140 ASTM AISI 4140 A193 B7 DIN1.7225 SCM440 2


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