Product Details

Competitive Advantage:

High strength
High tenacity
Good harden ability
High resistance to thermal properties
Competitive price
Fast production lead time

Product Description:

Name: SCM440TK 1.7225 42CrMo4 4140 Alloy Steel Tubes for Mechanical Purpose

Standard:EN10297 Seamless Circular Steel Tubes for Mechanical and General Engineering Purposes

Size: OD10.2mm to 810mm; WT 1.6mm to 100mm; Length: customized according to requirements

Certification: The hollow bar is supplied with 3.1.B inspection certificate,according to the standards EN 10204 and ISO 10474.

Application: It can be used to shafts, gears and parts subject to mechanical wear.

Surfaces Conditions: 1.Black surface with oxygen skin;
2.Grinded for external or internal surface, or external and internal surface;
3.Peeled for external or internal surface, or external and internal surface.

Delivery Conditions: Hot Rolled only;Stress Relieved;Annealed;Normalized;Quenched and Tempered.

Tube ends: The hollow bar comes with square cut and deburred ends.

Packaging: The hollow bar comes in strapped bundles. The minimum weight of each bundle is 2000kg; the maximum bundle weight being 5000kg, with a minimum of 4 pieces

Delivery Time: 35 days after both parties confirmed.

Chemical Composition(%):

Grades	C	Si	Mn	P	S	Cr	Ni	Mo	Cu
42CrMo	0.38-0.45	0.17-0.37	0.50-0.80	0.025 max	0.025 max	0.90-1.20	0.25 max	0.15-0.25	0.30 max
SCM440TK	0.38-0.43	0.15-0.35	0.60-0.85	0.03 max	0.03 max	0.90-1.20	0.25 max	0.15-0.30	0.30 max
42CrMo4	0.38-0.45	0.40 max	0.60-0.90	0.035 max	0.035 max	0.90-1.20	/	0.15-0.30	0.25 max
4140	0.38-0.43	0.15-0.35	0.75-1.00	0.040 max	0.040 max	0.80-1.10	/	0.15-0.25	0.30 max

Mechanical Properties (Quenched and Tempered)

(T=20°C if not differently stated)

Wall Thickness (mm)	Tensile Strength (Mpa)	Yield Strength(Mpa)	Elongation (Longitudinal) (%)	Elongation (Transverse) (%)	Notch impact energy (Longitudinal) [J]	Notch impact energy (Transverse) [J]
8 max	1100 max	900 min	10 min	8 min	30 min	/
8-20	1000 max	750 min	11 min	9 min	35 min	22 min
20-50	900 max	650 min	12 min	10 min	35 min	22 min
50-80	800 max	550 min	13 min	11 min	35 min	22 min

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