Free Cutting Steel 11SMnPb30 Round Bar

Specifications 1. Material:11SMnPb30

2. Size: 0.2mm-50mm

3. Delivey state:cold drawn

We own the eight profession engineers of high strength steel wire,and many QC to keep the products good quality so that in oversea marketing. We have been getting good reputation for over 10 years.   Next we introduce the products as follows:   1. Material: 11smnpb. 2. Diameter: 0.2mm-16mm. 3. Usage: machinery,mechanical parts,instruments,auto parts and so on. 4. Chemical composition:  

C	Si	Mn	P	S	Pb
0.10~0.14	≤0.05	0.80~1.20	0.23~0.33	0.05~0.11	0.20~0.35

  5. Diameter torlerance  

Tolerance:
	h8	h9(Round bar)	h10(Hexagonal bar)	h11	h12
<3mm	0-0.014	0-0.025	0-0.040	0-0.060	0-0.10
3-6mm	0-0.018	0-0.030	0-0.048	0-0.075	0-0.12
6-10mm	0-0.022	0-0.036	0-0.058	0-0.090	0-0.15
10-18mm	0-0.022	0-0.043	0-0.070	0-0.11	0-0.18
18-30mm	0-0.033	0-0.052	0-0.084	0-0.13	0-0.21
30-50mm	0-0.039	0-0.062	0-0.100	0-0.16	0-0.25

  6. Mechanical properties:   Tensile strength σb (MPa):(Hot rolled)390~540; (Cold drawn);   Elongation δ5 (%):(Hot rolled)≥22;(Cold drawn)≥7.0;   Reduction of area ψ (%):(Hot rolled)≥36;   Hardness :(Hot rolled)≤170HB;(Cold drawn)152~217HB.