AISI 4145 Alloy Steel Bar (UNS G41450, DIN1.7228)

• Type: Alloy Steel Bar
• Standard: AISI, ASTM
• Composition: Ferrous Steel Scrap
• Technique: Forged
• Shape: Round, Square, Flat
• Surface Treatment: Black, Grinded, Peeled, Polished, Rough Turned
• Model NO.: 4145
• Special Use: Mold Steel
• Application: Structural Steel Bar
• Similar Grades: DIN 1.7228, Scm5.
• Size Range: Diameter: 20-480mm
• Quality Standard: ASTM-A29
• Delivery Condition: Annealed, Qunched and Tempered
• Surface Condition: Black, Grinded, Peeled, Polished
• Transport Package: Apply The Shipping Packing
• Specification: Diameter: 20-480mm
• Trademark: FUSHUN
• Origin: Hubei, Huangshi
• HS Code: 7228600000
• Production Capacity: 500tons Per Month

Product Description

Similar Grade:
DIN 1.7228, SCM5
Shape: 
Round, Flat, Square.
Size Range:
 

	Diameter(mm)	Thickness (mm)	Width (mm)	Length(mm)
Round	20-480	-	-	2000-5800
Square	20-480	-	-	2000-5800
flat	-	20-50	80-600	2000-5800

 
Steel-making Condition: 
EF, EF/EAF+LF+VD, EF/EAF+ESR
Delivery Condition:
Annealed , Quenched + Tempered

Surface Condition: 
Black, Grinded, Peeled, Rough turned, Polished

Features:
1.Competitive price
2.Immediate delivery
3.Premium quality
4.Reliable service
5.MOQ: 1 Ton
 
 

Packing details	In seaworthy packing, as your requirement.
Delivery details	within 30-50 days

 

Chemical Composition:

C	Mn	P	S	Si	Cr	Cu
0.43-0.48	0.75-1.00	<= 0.035	<=0.040	0.15-0.35	0.80-1.10	0.15-0.25

 

Mechanical Properties
The mechanical properties of AISI 4145 alloy steel are displayed in the following 
Properties
Poisson's ratio 0.27-0.30
Hardness, Brinell 208
Hardness, Knoop (converted from Brinell hardness) 230
Hardness, Rockwell B (converted from Brinell hardness) 94
Hardness, Rockwell C (converted from Brinell hardness, value below normal HRC range, for comparison purposes only) 15
Hardness, Vickers (converted from Brinell hardness) 218
Machinability (annealed and cold drawn, based on 100 machinability for AISI 1212 steel) 60
 
Introduction:
Alloy 4145 is a Chrome / Moly alloy displaying high hardenability and good hardness penetration qualities. When heat treated, Alloy 4145 can be machined relatively effectively despite this well-known hardening grade maintaining its properties at very high temperatures! What makes Alloy 4145 harder than Alloy 4140 is the increased use of carbon applied to Alloy 4145.