42crmos4 Quenched & Tempered Qt Steel Round Bar

• Type: Alloy Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Technique: Q&T (Quenched & Tempered)
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Alloy: Alloy
• Special Use: Mold Steel, Free Cutting Steel, Cold Heading Steel
• Model NO.: 42CrMoS4 quenched & tempered qt steel round bar
• Products: Qt Steel Round Bars
• Processing: Quenched and Tempered
• Grade: AISI 4140 Scm440 42CrMo4 En19
• Transport Package: Standard Export Packing
• Specification: M12-M1000
• Trademark: Laiwu Xincheng
• Origin: China
• HS Code: 72283090
• Production Capacity: 3000tons/Month

Product Description

42CrMoS4 quenched & tempered qt steel round bar

Product standard:
EN 10083-1 ISO 683-1
Material standard:
EN: 42CrMoS4
ISO: 42CrMoS4
W.Nr.1.7227
SS.2244-05

42CrMoS4 is a direct hardening steel like 42CrMo4 but with controlled sulphur content for improved machinability. The material is stocked in cold drawn hardened and tempered condition.

42CrMoS4 Steel Bar has good machinability. Operations such as turning, hobbing, drilling, sawing, broaching, tapping and milling can be easily performed using the recommendations provided by the machine's manufacturer for ideal tool type-feeds and speeds.

42CrMoS4 reacts well in heat treatment and it is easy to process under heat treatment conditions. This material provides many desirable properties such as good strength and wear resistance, excellent toughness, good ductility and resistance to high-temperature stresses.

 

1. 42CrMoS4 steel equivalent grade:

Country	USA	German	British	Japan	China	Australia
Standard	ASTM A29	DIN 17200	BS 970	JIS G4105	GB/T 3077	AS 1444
Grades	4140	1.7225/	42CrMo4	SCM440	42CrMo	4140
		42crmo4

2. 42CrMoS4 steel chemical composition:

Materail	Chemical Composition %
	C	Si	Mn	S	P	Cr	Mo
42CrMoS4	0.38-0.43	0.15-0.35	0.60-0.90	0.020-0.035	0.035 max	0.80-1.10	0.15-0.25

3. 42CrMoS4 steel mechanical properties:
(Different Property canbe catched by adjusting Quenched and Temepering tempreture and time )

Tensile strength, Rm: 900 - 1100 MPa.
Yield strength, Rp0,2: min. 700 MPa.
Elongation, A5: min. 13%
Hardness: HB 270 - 325

4.42CrMoS4 Steel Applications
High and moderately stressed components for auto industry and mechanical engineering - shafts, connecting rods, crankshafts, screws etc.
 

5.Supply Size range

Delivery condition	Diameter ranges
Hot tolled	M12-M310
Hot rolled+Q&T(Quenched and tempered)	M12-M310.
Cold drawn +Q&T(Quenched and tempered)	M10-M100
Peeled / Peeled+Q&T	M10-M100
Forged/Forged+Heat treatment.	M250-M1000

6.Product Features:

1. High strength and toughness.
2. Great property of quenching and can be deep hardened.
3. Less tempering brittleness tendency.
4. Great machining performance under high temperature and nice appearance after machining.
5. Good performance in weld ability.
6. Excellent performance in impact absorption, such as where the hammer may bounce back and has barely any damage caused upon impact.