Dimensional Characteristics of SPHT-1 Steels: The applicable thickness for this SPHT-1 material as defined in the JIS 3132 starts from 1.2 mm to 14 mm. However the width of SPHT-1 material ranges to 950 to 2000 mm.
The Chemical Composition of SPHT-1 Steels: JIS G 3132 defines the chemical composition of SPHT-1 steels as under:
Maximum percentage of Carbon (C) is 0.10 percent.
Maximum percentage of Manganese (Mn) is 0.50 percent.
Maximum percentage of Silicon (Si) is 0.35 percent.
Maximum percentage of Phosphorous (P) is 0.040 percent.
Maximum percentage of Sulphur (S) is 0.040 percent.
Remaining is iron (Fe) percentage and with few negligible impurities.
Mechanical properties:
Steel plate/Sheet
thickness / mmσb
MPaσs
≥/MPaδ
Samples from the standard for 50 mm (2 in)180 ° of cold bending test
longitudinal
horizontal
Hot-rolled/Cold rolling:5 - 150
520
415
16~18
2a
3.5a
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Mechanical Properties of SPHT-1 Steels: The tensile strength of the SPHT-1 Steels is expressed in Newton per millimeters and it must be at-least 270 N/mm2 (MPa). The elongation property of SPHT-1 steel varies with the ranges of thickness. The minimum percentage ranges for elongation is 30.
Applications of SPHT-1: SPHT-1 steel is used for pipes & tubes making.
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