SHot Rolled Cold Rolled Steel Plate APH440 Equivalent JIS G3113 Structural Automobile
Brand Name:HDT
Certification:ASTM,AISI,DIN, ISO9001,MTC
Model Number:SAPH440
Minimum Order Quantity:5T
Delivery Time:60-75days
Payment Terms:L/C, T/T, Western Union
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SAPH440 EquivalentJIS G3113 Structural Automobile Hot Rolled And Cold Rolled SAPH440 Steel Sheet and Plate
WHAT IS SAPH440 STEEL?
SAPH440 steel is structural hot-rolled steel in the form of plates, sheets & strips for automobile structural applications. SAPH440 is a material grade and designation defined in JIS G 3113 standard. JIS G 3113 is a Japanese material standard for Hot-Rolled steel plates, sheets, strips for automobile structural usage. The structural quality hot rolled SAPH440 steel is more reliable in its tensile strength than SAPH400 steel. It can be used in automotive applications where more strength is needed & the material does not fail under exceeding loading.
WHAT IS JIS G 3113?
JIS G 3113 is a Japanese material standard that defines the
specifications of hot-rolled steel plates, sheets, and strip for
automobile structural uses.
SAPH440 FULL FORM
Sources say that SAPH 440 means Steel Automotive Pickled Hot-rolled and 440 MPa minimum tensile strength. Whilst this explanation can be used to remember the material
grade specification however SAPH 440 is a grade specified in
Japanese standard, where only 440 is defined in the standard for
its minimum tensile strength. Other qualities of steel like pickled
and hot-rolled are also valid but a reliable source is yet to be
found to verify this information.
JIS G 3131-1996
Hot rolled Mild steel plates,sheets and strip
| Symbol | Chemical composition | |
P max | S max | |
| SAPH310,SAPH370,SAPH400,SAPH440 | 0.040 | 0.040 |
| Symbol | Elongation (rolling direction)% | Bendability | ||||||||
| NO.5 test piece | No.1A test piece | |||||||||
| ≥1.6 <2mm | ≥2.0 <2.5mm | ≥2.5 <3.15mm | ≥3.15 <4.0mm | ≥4.0 <6.3mm | ≥6.3mm | Bending angle | Inside Radius | Test piece | ||
| <2.0mm | ≥2.0 mm | |||||||||
| SAPH310 | 33 | 34 | 36 | 38 | 40 | 26 | 180° | Flat on itself | Thickness x 1.0 | No.3 transversely to rolling direction |
| SAPH370 | 32 | 33 | 35 | 36 | 37 | 25 | 180° | -Thickness x 0.5 | Thickness x 1.0 | |
| SAPH400 | 31 | 32 | 34 | 35 | 36 | 24 | 180° | Thickness x 1.0 | -Thickness x 1.0 | |
| SAPH440 | 29 | 30 | 32 | 33 | 34 | 22 | 180° | Thickness x 1.0 | Thickness x 1.5 | |
| Symbol | Tensile strength N/mm2 min | Yield point N/mm2 | ||
| <6 | ≥6 <8mm | ≥8 <14mm | ||
| SAPH310 | 310 | 195 | 195 | 175 |
| SAPH370 | 370 | 225 | 225 | 215 |
| SAPH400 | 400 | 255 | 235 | 235 |
| SAPH440 | 440 | 305 | 295 | 275 |
DIMENSIONAL CHARACTERISTICS OF SAPH440 STEELS
The applicable thickness for this SAPH440 material as defined in the JIS 3113 starts from 2 mm to 14 mm. However, the width of SAPH440 material ranges to 950 to 2000 mm.
THE CHEMICAL COMPOSITION OF SAPH440 STEELS
JIS G 3113 defines the chemical composition of SAPH440 steels as under:
- Carbon (C) is not identified in the standard.
- Manganese (Mn) is not identified in the standard.
- 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 OF SAPH440 STEELS
- The tensile strength of the SAPH440 Steels is expressed in Newton per millimeters and it must be at least 440 N/mm2 (MPa).
- The yield strength is minimum 275 to minimum 305 N/mm2 (MPa) depending on the thickness.
- The elongation property of SAPH440 steel varies with the ranges of thickness. The minimum percentage ranges for elongation is 29 to 34 minimum. Only over 6.5 mm thickness requires 22 minimum percentage elongations. Higher thickness gauges usually show higher elongation than lower gauges.
SHot Rolled Cold Rolled Steel Plate APH440 Equivalent JIS G3113 Structural Automobile
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