1141 11smn30 12L14 1215 Cold Drawn Free Cutting Mild Steel Bar

• Type: Carbon Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN
• Technique: Cold Drawn
• Application: Structural Steel Bar, Free Cutting Steel
• Surface Treatment: Polished
• Alloy: Non-alloy
• Model NO.: cold drawn steel bar
• Special Use: Free Cutting Steel
• Raw Material: Steel Round Bar
• Main Grade: Mild Steel
• Grade Name: 1215 12L14 Sum23 Sum24 1141 1144 304cu
• Steel Type: Easy Machining
• Steel Shape: Round Bar, Hex Steel Bar, Flat Bar
• Surface: Bright and Shinny Surface
• Free Sample: Yes
• Transport Package: 5 Layer Anti-Rust Packaging
• Specification: dia: 5mm-70mm
• Trademark: dajin
• Origin: China
• Production Capacity: 2000

Product Description

SUM23 11SMn30 12L14 1215 cold drawn free cutting  mild steel bar 

1.12L14 cold drawn bar brife introduction

12L14 is a Re-Sulphurised, Re-Phosphorised Free Maching Steel. This is premium grade of free cutting steel is used by repitition  
engineers and general machining for a wide variety of applicaitons. It has excellent machinability and is suitable for case hardening and electroplating.




2.12L14 Cold drawn steel bar Typical applications

Aircraft landing bolts, fasteners, bushings, and shafts,Brake hose ends, pulleys, disc brake pistons, wheel nuts and inserts, control linkages, gear box components (case hardened), domestic garbage bin axles, concrete anchors, padlock shackles,hydraulic fittings,vice jaws (case
Hardened).

3.12L14 cold drawn steel bar main type and avaliable sizes

Round bars	5mm-130mm
Suqare bar	6*6mm-100*100mm
Flat bars	3mm*20mm-50mm*100mm
Hex bars	6mm-100mm
Bar Finsihe	Peeled, Cold Drawn, TurnedTurned & Polished, Centreless Ground

4.12L14 Cold drawn steel bar size tolerance

h9,h10,h11 or other tolerance according to client's requirement

5.12L14 Cold drawn steel bar chemical composition(%)

C	Si	Mn	P	S	Pb
Max 0.15	Max 0.10	0.80-1.20	0.04-0.09	0.25-0.35	0.15-0.35

6.12L14 Alternative grade in different standard

Germany	DIN 95MnPb28, Werkstoff No. 1.0718
Great Britain	BS970 230M07 leaded, EN1A Leaded
Japan	JIS: SUM22L
USA	AISI /SAE 12L14 UNS G12144

7.12L14 Typical Mechanical Properties - Cold Drawn and Turned and Polished Condition

Cold Drawn Size mm		up to 16mm	17 - 38mm	39 - 100mm
Tensile Strength Mpa	Min	480	430	400
	Max	760	690	630
Yield Strength Mpa	Min	350	330	290
	Max	590	550	500
Elongation in 50mm %	Min	7	8	9
Hardness HB	Min	142	120	115
	Max	225	205	185