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ASTM 4720H

2019-05-09 10:04:56
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Steel Grade: ASTM 4720H
CHEMICAL COMPOSITION(ASTM 4720H):
C(%) Si(%)③ Mn(%)Cr(%)Mo(%)Ni(%)Other(%)
0.17~0.23 0.15~0.35 0.45~0.75 0.30~0.60 0.15~0.25 0.85~1.25

Hardness HRC|Distance (ASTM 4720H):
1.6mm 3.2mm 4.8mm 6.4mm 7.9mm 9.5mm 11.1mm 12.7mm 14.3mm 15.9mm
48~41 47~39 43~31 39~27 36~23 ≥29 ≥28 ≥27 ≥27 ≥26
Remark(ASTM 4720H): 1, When the ω(Pb) is between 0.15% and 0.35%, the steel grade should be added "L" between the second number and the third number.
2, The standard is ASTM A304(1996).

Introduction structural steel (ASTM 4720H)
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.
Application(ASTM 4720H)
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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ASTM D2, X155CrMoV12-1, ASTM D3, AISI H11, AISI H13, ASTM 4720H

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