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C25

2018-01-23 15:50:02
We are a professional manufacturer of C25, we can provide the third party inspection report and datasheet of C25 as round bar, square bar, flat steel and so on. Please send the inquiry to us if you are if you are interested in C25. We will serve you with honesty, integrity, and professional. The detail data as below follow:

Steel Grade: C25| Material No.: 1.0406

CHEMICAL COMPOSITION(C25):
C(%) :       0.22~0.29
Si(%) :       ≤0.40
Mn(%) :       0.40~0.70
P(%)≤:       0.045
S(%)≤:       0.045
Cr(%) :       ≤0.40
Mo(%) :       ≤0.10
Ni(%) :       ≤0.40
Other(%) :       ③

HARDNESS AND HEAT TREATMENT(C25):
Hot Working/℃:      1100~850
Annealing/℃:      650~700
Normalizing/℃:      880~910
Quench/℃:      860~890Water
Temper/℃:      540~680
Annealing Hardness HBS≤:      156
MECHANICAL PROPERTIES④ (C25):
Size/mm:      ≤16
Tensile Strength|σb/MPa:      550~700
Yield Strength|σs≥/MPa:      370
Extensibility|δ5(%)≥:      19
Reduction of Area|ψ(%)≥:      40
Ballistic|αkv/J⑤:      —
Remark(C25):
①, This steel grade is according to DIN17200(1987) and revised by DINEN10083-1+2(1991).
②, We can supply other steel also which sulphur composition is 0.020%~0.040%, and it will be added "S" at the back of steel grade.
③, The balance of Cr+Mo+Ni is under 0.63%.
④, It is mechanical properties after hardening and tempering in this table.
⑤, The test sample is according to DVM-V.


Introduction structural steel (C25)
Structural steel is a steel that conforms to a specific strength and formability grade. The formability is expressed as the elongation at the end of the tensile test. Structural steel is generally used for bearing and other purposes. In these uses, the strength of steel is an important design standard.
Most steels used throughout Europe are specified to comply with the European standard EN 10025. However, many national standards also remain in force.
Typical grades are described as 'S275J2' or 'S355K2W'. In these examples, 'S' denotes structural rather than engineering steel; 275 or 355 denotes the yield strength in newtons per square millimetre or the equivalent megapascals; J2 or K2 denotes the materials toughness by reference to Charpy impact test values; and the 'W' denotes weathering steel. Further letters can be used to designate fine grain steel ('N' or 'NL'); quenched and tempered steel ('Q' or 'QL'); and thermomechanically rolled steel ('M' or 'ML').
Application(C25)
Structural steel is a category of steel used for making construction materials in a variety of shapes. Many structural steel shapes take the form of an elongated beam having a profile of a specific cross section. Structural steel shapes, sizes, chemical composition, mechanical properties such as strengths, storage practices, etc., are regulated by standards in most industrialized countries.

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