Scm415 Scm435 Scm440 Alloy Steel Bar /4140 Material Heat Treatment

• Type: Alloy Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Technique: Quenched and Tempered
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Alloy: Alloy
• Special Use: Mold Steel
• Model NO.: SCM415 SCM435 SCM440
• Steel Grade: Scm435 4135 35CrMoA
• Delievery Condition: Qt Alloy Steel Round Bars
• Commodition: 4135 Scm435 Quenched & Tempered
• Condition: AISI/SAE 4140+Qt
• Techniques: Quenched and Tempered
• Diameter: 12mm to 1000mm
• Products: 4135 Scm435 Qt Alloy Steel Round Bars
• Transport Package: Standard Export Packing
• Specification: Diameter 12mm to 1000mm
• Origin: China
• HS Code: 72283090
• Production Capacity: 3000tons/Month

Product Description

SCM415 SCM435 SCM440 alloy steel bar /4140 material heat treatment 


1.Applications of Heat-Treatable Steel 
The i Machine construction, machine parts, axes, knuckles, connecting rods, crankshafts, gear shafts, pinions, gears, bandages, base plates, assembling parts, and so on.

2.Sizes range of QT steel bars we can supply :

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

3.Offered Steel chemical composition:

Grade	C	Si	Mn	S	P	Cr	Ni	Cu	Mo
SCM415	0.13	0.15	0.6	Max	Max	0.9	Max	Max	0.15
	0.18	0.35	0.85	0.03	0.03	1.1	0.03	0.03	0.03
SCM420	0.17	0.17	0.4	Max	Max	0.8	Max	Max	0.15
	0.24	0.37	0.7	0.03	0.03	1.1	0.03	0.03	0.25
SCM430/4130	0.26	0.17	0.4	Max	Max	0.8	Max	Max	0.15
	0.34	0.37	0.7	0.03	0.03	1.1	0.03	0.03	0.25
SCM435/4135	0.32	0.17	0.4	Max	Max	0.8	Max	Max	0.15
	0.4	0.37	0.7	0.03	0.03	1.1	0.03	0.03	0.25
SCM440/4140	0.38	Max	0.6	Max	Max	0.9	Max	Max	0.15
	0.45	0.4	0.9	0.035	0.035	1.2	0.03	0.03	0.3
SCM450/4150	0.48	Max	0.6	Max	Max	0.9	Max	Max	0.15
	0.53	0.4	0.9	0.035	0.035	1.2	0.03	0.03	0.3

4.Quality control
1.Processing Line:
Iron - hot metal pretreatment - Converter - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) - heat --UT Check - Processing and Distribution Center
Electric Furnace - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) - heat --UT Check - Processing and Distribution Center
2.Gas content level:O2 - <20 ppm H2 - <2 ppm N2- <100 ppm
3.Grain Sizes:5-8
4. non-metallic inclusions contorlling level

	A	B	C	D
	MAX	MAX	MAX	MAX
Thin	2	2	2	2
Thick	1	1	1	1

5.Delivery time of steel bar:
7-10days of stock,30 days after order confirmed for new produced .
6.Payment term:TT or LC
7.Free sample:Yes
8.steel bar Inspection: Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,UT test and so on. 
9.Mark: Heat Number,Weight,Sizes,Grade,etc