4140 Alloy Steel Round Bar with En Standard

1. Diameter:

   Ø1/4''~Ø15''(10mm~600mm)

2. Length:

  1m~12m

3. Standard:

  ASTM 276, ASTM A564, ASTM A582 etc

4. Steel type:

 304,   304L,  308,     316,   316L, 321, 347,   431,   416,

 630, 17-4PH, S31803, 2205, 904L,4140,4340,etc

5. Diameter tolerance:

 H9, H11, H13, K9, K11, K13...etc, as per clients' requirement

6. Surface:

 Bight, peeled & polished, grinding surface

7. Application:

Marine shaft, pump shaft, machine-made industry, tool bar, valve parts,

8. Delivery time:

* Black bar: be ready for shipment within 15 days upon receipt the PO

* Bright bar: be ready for shipment within 25 days upon receipt the PO

9. Package:

Good quality wooden box ( Suitable for exporting & it will protect the bar safe )

10. Material Test Cert.:

 Available

Grade

C

Si

Mn

P

S

Cr

Mo

Ni

42CrMo

0.38~0.45

0.17~0.37

0.50~0.8

≤0.035

≤0.035

0.9~1.2

0.15-0.25

≤0.3

4140

0.40~0.45

0.15~0.35

0.75~1.0

≤0.035

≤0.040

0.8~1.1

0.15-0.25

-

SCM44

0.38~0.43

0.15~0.35

0.60~0.9

≤0.030

≤0.030

0.9~1.2

0.15-0.30

0.15-0.30