S235JR Material Introduction
EN 10025 S235JR material (1.0038 steel) is an European standard hot rolled non-alloy structural steel grade. It has good plasticity, toughness and weldability, certain strength and good cold bending properties. For specification, datasheet and equivalent, please see the following tables.
Material S235JR meaning (designation):
“S” is short for structural steel;
“235” refers to the minimum yield strength (MPa) for the steel thickness ≤ 16mm;
“JR” indicates the quality grade related to charpy impact test energy value ≥ 27 J, at room temperature 20℃;
“C” means the material is suitable for cold flanging, cold bending, cold forming or cold drawing, e.g. S235JRC (1.0122).
1.0038 is the steel number of this steel.
Carbon steel S235JR general delivery conditions are as follows:
+AR means “as-rolled” and delivery condition without special rolling and/or heat treatment.
+N stands for “normalized or normalized formed”
+M refers to “thermomechanically formed – TMCP”
+C is the “cold work hardened”
+A means that the mateiral is in the soft annealed condition.
+AT means that the steel is in the solution annealed condition.
Example 1: When the delivery condition is as-rolled or normalized, the steel name is given as S235JR+AR (1.0038+AR) or S235JR+N (1.0038+N).
Example 2: S235JRC steel means the material is suitable for cold flanging, cold bending, cold forming or cold drawing.
Example 3: If S235JRC steel is delivered in the condition of cold work hardened, it’s named as S235JRC+C (1.0122+C).

Chemical composition & Mechanical property

Chemical Composition of S235JR Material (EN 1.0038 Steel)
The following table shows (1.0038) S235JR chemical composition based on ladle analysis.

			Chemical Composition (ladle analysis) %, ≤
Standard	Grade	Steel Grade (Steel Number)	C	Si	Mn	P	S	Cu	N
EN 10025-2	S235 steel	S235JR (1.0038)	0.17	–	1.40	0.035	0.035	0.55	0.012
		S235J0 (1.0114)	0.17	–	1.40	0.030	0.030	0.55	0.012
		S235J2 (1.0117)	0.17	–	1.40	0.025	0.025	0.55	–

Physical Properties of S235JR Steel (1.0038 Material)
Material density: 7.85g/cm3
Melting point: 1420-1460 °C (2590-2660 °F)
S235JR Steel (1.0038 Material) Mechanical Properties
The yield strength, tensile strength, elongation, and Charpy impact test are listed in the following data sheet.
EN 1.0038 material Brinell hardness: ≤120 HBW
Charpy impact value: ≥ 27J, at room temperature 20 ℃.
Yield Strength

		Yield Strength (≥ N/mm2); Dia. (d) mm
Steel Series	Steel Grade (Material Number)	d≤16	16< d ≤40	40< d ≤100	100< d ≤150	150< d ≤200	200< d ≤250
S235	S235JR (1.0038)	235	225	215	195	185	175

Tensile Strength

		Tensile Strength (≥ N/mm2)
Steel Series	Steel Grade (Material Number)	d<3	3 ≤ d ≤ 100	100 < d ≤ 150	150 < d ≤ 250
S235	S235JR (1.0038)	360-510	360-510	350-500	340-490

1MPa = 1N/mm2
Elongation

		Elongation (≥%); Thickness (d) mm
Steel Series	Steel Grade	3≤ d≤40	40< d ≤63	63< d ≤100	100 < d ≤ 150	150 < d ≤ 250
S235	S235JR	26	25	24	22	21

Applications
EN 1.0038 material can be made into many steel products, such as H beam, I beam, steel channel, steel plate, steel angle, steel pipe, wire rods, and nails, etc. and these products are widely used in general requirements for welded structures and parts such as bridges, transmission towers, boilers, steel structure factories, shopping centers and other buildings, etc.

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