1.7225/42CrMo4/AISI 4140/Scm440 Structural Steel Hot Rolled Alloy Bar

• Customization: Available
• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Model NO.: Special Steel Bar
• Technique: Forged
• Shape: Plate
• Surface Treatment: Polished
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Structural Steel Bar
• Transport Package: Wooden
• Specification: 6-400mm
• Trademark: Smooth
• Origin: China
• HS Code: 7214100000
• Production Capacity: 5000 Ton/Year

Product Description

Grade :	42CrMo4
Number:	1.7225
Classification:	Alloy special steel

Scopes
42CrMo4 | 1.7225 is a versatile heat-treated steel, which is characterized by its high strength and toughness. It is mainly used in mechanical engineering, and for vehicle and automotive use. Gear, crankshafts and connecting rods are manufactured from it.

Characteristics
42CrMo4 | 1.7225 is very difficult to weld and is therefore not suitable for welded structures. If welding is unavoidable, a heat treatment is recommend.

Chemical Composition (in weight %)

C	Si	Mn	P	S	Cr	Mo
0.38 - 0.45	max   0.4	0.6 - 0.9	max   0.025	max   0.035	0.9 - 1.2	0.15 - 0.3

In stock
plates, rolled, quenched and tempered
round bars, rolled / forged, quenched and tempered
flat, forged, quenched and tempered

Advantages of saw cut

The processing with the saw is a mechanical processing of the material, which results in a significantly lower unintended deformation and increased hardness for the existing structure, such as the thermal cutting.

Thus, the machined workpiece has a homogeneous structure even at the edge, which does not change in the continuation of the material.
This circumstance allows immediate finishing of the workpiece with milling or drilling . So it is not necessary to anneal the material or make a similar operation beforehand.