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DESCRIPTION

Basic Info.

Model NO.	12L14 11SMnPb30 SUM24L
Special Use	Free Cutting Steel
Surface of Cold Drawn Steel Bar	Bright
Size	M5-M100
Straightness of Cold Drawn Steel Bar	Max 0.8mm/M
Tolerance of Cold Drawn Steel Bar	H9 H10 H11
Standard.	12L14 Sum23 Sum24
Transport Package	Anti-Rust Packing
Specification	M6-M10060
Trademark	Laiwu Xincheng
Origin	China
Production Capacity	3000tons/Month

Product Description

12L14 11SMnPb30 SUM24L Cold Drawn Free Cutting Steel Bar

12L14 - COLD DRAWN ROUND ROD

Cold Drawn Round 12L14 Carbon Steel Bar/Rods are best known for their excellent machinability due to its added Lead content. 12L14 Cold Drawn Steel Rods are frequently used to fabricate high speed machinery. It has very high machinability and low weldability, but it can be bent, riveted or crimped.
1.12L14 chemical composition

Element	Content (%)
Iron, Fe	97.91 - 98.7
Manganese, Mn	0.85 - 1.15
Sulfur, S	0.260 - 0.35
Lead, Pb	0.15 - 0.35
Carbon, C	0.15
Phosphorous, P	0.040 - 0.090

2.12L14 physical property

Properties	Metric	Imperial
Tensile strength	540 MPa	78300 psi
Yield strength	415 MPa	60200 psi
Bulk modulus (typical for steel)	140 GPa	20300 ksi
Shear modulus (typical for steel)	80.0 GPa	11600 ksi
Elastic modulus	190-210 GPa	27557-30458 ksi
Poisson's ratio	0.27-0.30	0.27-0.30
Elongation at break	10%	10%
Reduction of area	35%	35%
Hardness, Brinell	163	163
Hardness, Knoop (converted from Brinell hardness)	184	184
Hardness, Rockwell B (converted from Brinell hardness)	84	84
Hardness, Vickers (converted from Brinell hardness)	170	170
Machinability (based on 100 machinability for AISI 1212 steel)	160	160

3.Sizes we can supply for 12L14 cold drawn steel bars:

Shapes	Sizes	Processing
Steel Round Bar	5mm to 63.5mm	Cold Drawn
Steel Round Bar	63.5mm-120mm	smooth-turned and polished.
cold drawn steel square bar	5*5mm to 120*120mm	Cold Drawn
cold drawn steel hex bar	5mm to 120mm	Cold Drawn
cold drawn steel hexagonal bar	5mm to 120mm(side to side)	Cold Drawn

4..Advantages of cold drawn steel bar:1.It can remove the Size and Section which provides Tighter tolerances which Reduces machining losses.2.It can remove the Steel Surface Finish which Reduces surface machining & improves quality.3.It can remove the Straightness which Facilitates automatic bar feeding in CNC.4.It can increase the Mechanical Properties which Can reduce the need for hardening.5.It can improve the Machinability and Productivity which Enables higher machining feeds, high tool life, yield & speeds and improved machined finish.5.Delivery time : 7days for stocks, within 30 days for new production ones.6.Payment : TT, LC7.MOQ: 2tons per sizes
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