EN1A LEADED AND NON – LEADED Grade Introduction:

EN1A is a very popular grade of low carbon-manganese free cutting steel, which is most suitable for the manufacture of repetition turned components, such as nuts, bolts, hydraulic fittings, and studs, particularly where intricate drilling and machining operations are involved. 

 

It can be case-hardened, producing components with enhanced wear resistance. En1a is also available as En1a leaded (En1aPb) for greater machinability. Swarf will form in small chips to prevent machine blockage.

 

EN1a Non-Leaded steel is a Re-Sulphurised Free-Machining Steel. This is a premium grade of free-cutting steel. It has excellent machinability. It is suitable for case hardening and electroplating. We can provide you with free cutting steel both in the black and bright cold drawn bar form.

 

EN1A LEADED AND NON – LEADED Grade Application:

En1a steels are suitable for applications where good machinability is the prime consideration. Because of this, they are used for the rapid production on single or multiple spindle automatic lathes and capstan lathes of finely finished components that will not be subjected to high stresses in service, e.g. light duty studs, cycle components, and many intricate parts for textile and printing machinery. This type of steel cannot be relied upon to possess good transverse properties and should not be used for hollow parts which might be subjected to an internal pressure that would set up wall stresses dangerously near to the transverse yield stress. Case hardening can be carried out but this steel Is not recommended for general case hardening work and it is not intended for use where the hardened case is subject to severe impact in service.

 

Typical applications are:

• Brake hose end,

• Hydraulic parts,

• Pulleys,

• Disc brake pistons,

• Wheel nuts and inserts,

• Control linkages,

• Hear box components (case hardened),

• Domestic garbage bin axles,

• Concrete anchors,

• Padlock shackles,

• Hydraulic fittings,

• Vice jaws. 

En1a steel bars are used mostly in bright form.

 

EN1A LEADED AND NON – LEADED Equivalent grades:

BS970: 1955 EN1A, BS970/PD970: 1970 onwards 230M07. 
Related European grades: 9SMn28, BS En 11SMn30
Werkstoff no. 1.0715
US Grades SAE (AISI) 1213, 1215.

 

Addition to other grades:

MS, EN1A, EN3B, EN8, EN8D, EN9, EN24, EN31, EN32B, EN36C, EN41B, EN43B, EN47, EN353, IS2062, 42Crmo4, HCHCR, D2, D3, H-11, H-13, CW-1, OHNS M2, M35, M42, DIN-1.2714, P20, P20+S, P20+Ni, SCM420, ASTMSA-36, ASTM SA-105 , SAE1018, SAE1010, SAE4140, SAE8620, 16MNCR5, 20MNCR5, C20, C45, C50, C60, CK45, 20C8, 40C8, 45C8, 55C8, C55MN75, SAE52100, S40C, S355J2G3.

 

Our Supply Range:

 

Price List:

 

 

EN1A LEADED AND NON – LEADED Chemical composition:

The following table shows the chemical composition of EN1A steel:

Element	C	Si	Mn	P	S
Content(%)	0.07-0.15	0.10 Max	0.80-1.20	0.07 Max	0.2-0.3

 

EN1A LEADED AND NON – LEADED Mechanical Properties:

PROPERTIES	METRIC	IMPERIAL
Hardness, Brinell (typical)	300	33
Hardness, Rockwell C (typical)	30	30
Tensile strength, ultimate	965-1030 MPa	140000-150000 psi
Tensile strength, yield	827-862 MPa	120000-125000 psi
Elongation at break (in 50 mm (2″))	20.0%	20.0%
Compressive strength	862 MPa	125000 psi
Charpy impact (V-Notch)	27.1-33.9 J	20.0-25.0 ft-lb
Poisson’s ratio	0.27-0.30	0.27-0.30
Elastic modulus	190-210 GPa	27557-30457 ksi

 

FINISH	YIELD N/MM2	TENSILE N/MM2	ELONGATION MIN	HARDNESS HB
Turned	230/310	370/500	17	100/150
Drawn	290/550	400/650	7	115/200

EN1A LEADED AND NON – LEADED Hardness:

300

 

EN1A LEADED AND NON – LEADED Heat treatment: 

• Carbonization of EN1A bright mild steel takes place at 900-950 o C then it is a furnace or air-cooled. 

• En1A can be tempered at 180-210  o C then should be left to cool in the air.

• The mild steel can be hardened at 780-800 o C then quenched in oil or water. However, this is difficult to do with EN1A and is not recommended.

 

EN1A LEADED AND NON – LEADED Hardening:

 

EN1A LEADED AND NON – LEADED Tempering:

En1A can be tempered at 180-210 ^oC then should be left to cool in the air. 

 

EN1A LEADED AND NON – LEADED Physical Properties:

 

EN1A LEADED AND NON – LEADED Thermal Properties:

 

EN1A LEADED AND NON – LEADED Forging Properties:

 

EN1A LEADED AND NON – LEADED Stress Relieving:

 

EN1A LEADED AND NON – LEADED Normalizing:

 

EN1A LEADED AND NON – LEADED Annealing:

 

EN1A LEADED AND NON – LEADED Density:

 

EN1A LEADED AND NON – LEADED Machinability:

 

EN1A LEADED AND NON – LEADED Welding:

Welding is not recommended due to high sulfur and lead content.

 

Supply Cities:

Ahmedabad, Amaravathi, Ambattur, Bangalore, Belgaum, Chennai, Chittoor, Coimbatore, Dindigul, Mysore, Nellore, Hyderabad, Kochi, Mangalore, Tirupur, Tuticorin, Madurai, Andhra Pradesh, Karnataka, Puducherry, Kerala, Tamil Nadu, Telangana, Salem, Thanjavur, Trichy, Erode, Vellore, Ranipet, Sivakasi, Karur, Hosur, Nagercoil, Kanchipuram, Karaikudi, Neyveli, Cuddalore, Kumbakonam, Thiruvannamalai, Pollachi, Rajapalayam, Gudiyatham, Pudukottai, Vaniyambadi, Ambur, Nagapattinam, Trivandrum, Vijayawada, Guntur, Thirupathi, Nazarathpet, Kakinada, Kurnool, Kadapa, Nizamabad, Mahabubnagar, Karimnagar.

 

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