S275JR steel plate

Classification :

S275JR steel plate,S275JR grade steel is a readily weldable low carbon manganese steel with good impact resistance. This material is commonly supplied in the untreated or normalised condition. Machinability of this material is similar to that of mild steel.

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S275JR steel plate

Product information

EN 10025 S275 Steel (S275JR, S275J0 & S275J2)
EN 10025 S275 Steel is a non-alloy structural steel grade, according to EN10025, S275 mild steel is mainly devided into S275JR (1.0044), S275J0 (1.0143) and S275J2 (1.0145). Some properties of S275 mild steel is better than S235, and lower than S355.
S275 material old designation is St44 according to Germany standard, former quality grade equivalent is as follows:
EN10025 S275JR (1.0044) – St44-2 in DIN 17100
S275JO (1.0143) – St44-3U in DIN17100
S275J2 (1.0145) – S275J2G4 in EN 10025: 1993
EN10025 S275JR Meaning (Designation)
The lists below explains EN10025 S275JR meaning
“S” is for structural steel;
“275” refers to the minimum yield strength is 275 MPa tested with steel thickness ≤ 16mm.
“JR” means that the minimum charpy impact value at room temperature is 27J.
“J0” refers to the minimum charpy impact value at 0 °C is 27J.
“J2” means the minimum impact value at -20 °C is 27J.
S275 Data Sheet & Specification
EN 10025 S275 steel properties, composition and equivalent materials can be found in the following datasheet. All data sheet of DIN EN 10025-2 is the same as BS EN 10025-2 and other EU member states.

The S275JR PLATE is a steel plate made from mild steel or carbon steel. These plates are having huge usage for the structural building, manufacturing in the plant, machinery building, and in mining. These plates are made of S275JR alloy which is very versatile in nature.

Chemical composition & Mechanical property

Chemical Composition
Datasheet 1, EN10025 S275J0, S275J2 and S275JR chemical composition based on ladle analysis is given in the following table.

			Chemical Composition (ladle analysis), %, ≤
Country (Region)	Standard	Steel Grade (Steel number)	C	Mn	P	S	N	Cu	Thickness (d) (mm)	Method of deoxidation
European Union	EN 10025-2	S275JR (1.0044)	0.21	1.50	0.035	0.035	0.012	0.55	≤ 40	Rimmed steel not allowed
			0.22						> 40
		S275J0 (1.0143)	0.18	1.50	0.030	0.030	0.012	0.55	≤ 150	Rimmed steel not allowed
			0.20						> 150
		S275J2 (1.0145)	0.18	1.50	0.025	0.025	–	0.55	≤ 150	Fully Killed
			0.20						> 150

Datasheet 2, chemical composition based on product analysis.

			Chemical Composition (product analysis), %, ≤
Country (Region)	Standard	Steel Grade (Steel number)	C	Mn	P	S	N	Cu	Thickness (d) (mm)	Method of deoxidation
European Union	EN10025-2	S275JR (1.0044)	0.24	1.60	0.045	0.045	0.014	0.60	≤ 40	Rimmed steel not allowed
			0.25						> 40
		S275Jo (1.0143)	0.21	1.60	0.040	0.040	0.014	0.60	≤ 150	Rimmed steel not allowed
			0.22						> 150
		S275J2 (1.0145)	0.21	1.60	0.035	0.035	–	0.60	≤ 150	Fully Killed
			0.22						> 150

S275 Steel Properties
Physical Properties
S275 mild steel density: 7.85 g/cm3
Melting point: 1420-1460 °C (2590-2660 °F)
Mechanical Properties
S275 steel mechanical properties such as yield strength, tensile strength, elongation and impact resistance are given in datasheet below.
Yield Strength
Grade S275 Datasheet – 3

		S275 Yield Strength (≥ MPa); Dia. (d) mm
Steel	Steel Grade (Steel Number)	d≤16	16< d ≤40	40< d ≤63	63< d ≤80	80< d ≤100	100< d ≤150	150< d ≤200	200< d ≤250
S275	S275JR (1.0044)	275	265	255	245	235	225	215	205
	S275J0 (1.0143)
	S275J2 (1.0145)

Tensile Strength
EN 10025 S275 Datasheet – 4

		S275 Tensile Strength (≥ MPa)
Steel	Steel Grade	d<3	3 ≤ d ≤ 100	100 < d ≤ 150	150 < d ≤ 250
S275	S275JR (1.0044)	430-580	410-560	400-540	380-540
	S275J0 (1.0143)
	S275J2 (1.0145)

Note: 1MPa = 1N/mm2
Elongation
S275 material Datasheet – 5

		Elongation (≥%); Thickness (d) mm
Steel	Steel Grade	d≤1	1< d ≤1.5	1.5 < d ≤2	2 < d ≤ 2.5	2.5 < d ≤ 3	3 ≤d ≤40	40< d ≤63	63 < d ≤100	100 < d ≤ 150	150 < d ≤ 250
S275	S275JR	15	16	17	18	19	23	22	21	19	18
	S275J0 (S275JO)
	S275J2	13	14	15	16	17	21	20	19	19	18

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