Steel wires suitable for screw production and cold forging process – مجتمع نورد نگارین پولاد ماد / Poolad Maad Co

Wire 10B21

Medium carbon steels with boron contents of 8 to 50 ppm are utilized in cold heading process to manufacture miscellaneous types of bolts and nuts. Adding boron in steels can improve hardenability and cold formability simultaneously during manufacturing process of bolts. Two common grades of this group of steel are 10B21 and 10B38 wire rods which are manufactured according to the requirements of ASTM F2282 standard. Chemical and mechanical properties of these grades are indicated in the tables below.

High carbon steel wire rods :

Production process	Microstructure	Type of product	Standard	Grade
Hot rolling	Pearlite+Ferrite	Wire rod	ASTM F2282	10B38

Mechanical properties :

Elongattion	Reduction of area R.A(%)	Yield strength(MPa)	Tensile strength(MPa)	Tensile test standard
35-45	65-70	310-350	480-550	ISO 6892-1

Chemical Analysis :

Al	Cu	B	Mo	Cr	S	P	Mn	Si	C	Alloy
-	-	8ppm	-	-	-	-	0.8	-	0.19	.Min
0.005	0.1	50ppm	0.01	0.1	0.02	0.02	1.1	0.12	0.23	.Max

Max. of ovality	Available sizes(mm)
0.2mm	5.5,6.5,8,10,12,14

Wire 10B38

High carbon steel wire rods :

Production process	Microstructure	Type of product	Standard	Grade
Hot rolling	Pearlite+Ferrite	Wire rod	ASTM F2282	10B38

Mechanical properties :

Elongattion	Reduction of area R.A(%)	Yield strength(MPa)	Tensile strength(MPa)	Tensile test standard
35-40	60-65	350-420	640-680	ISO 6892-1

Chemical Analysis :

Al	Cu	B	Mo	Cr	S	P	Mn	Si	C	Alloy
-	-	8ppm	-	-	-	-	0.7	-	0.35	.Min
0.005	0.1	50ppm	0.01	0.1	0.02	0.02	1	0.2	0.42	.Max

Max. of ovality	Available sizes(mm)
0.2mm	5.5,6.5,8,10,12,14

Wire 10B21

High carbon steel wire rods :

Mechanical properties :

Chemical Analysis :

Wire 10B38

High carbon steel wire rods :

Mechanical properties :

Chemical Analysis :

All material and intellectual rights of the site are reservedDesigned and implemented by Vieratec Academy

All material and intellectual rights of the site are reserved
Designed and implemented by Vieratec Academy