1. SA516Gr60 steel is produced in an electric furnace from scrap iron, resulting in pure steel. Steel plates are cast from molten steel, cooled, and then pressed into flat sheets. These rectangular plates can be directly rolled or cut from wide strip. Thickness varies depending on the plate: thin plate <8 mm (thinnest 0.2 mm), medium-thick plate 8-60 mm, and extra-thick plate 60-120 mm.
2. SA516Gr60 Steel Plate Dimensions, Shape, Weight, and Tolerances:
a. The dimensions, shape, and tolerances of the steel plate must comply with national standards.
b. The thickness tolerance of the steel plate must comply with the Class B tolerance requirements of GB/T709. Upon request, the plate may be delivered to Class C tolerances of GB/T709.
3. SA516Gr60 Steel Plate Delivery Condition: The plate is delivered in the normalized condition, but a specific condition may be specified based on technical requirements.
4. SA516Gr60 steel plate thickness-direction performance requirements: Z15, Z25, Z35.
5. SA516Gr60 steel plate flaw detection requirements: primary, secondary, and tertiary inspections.
6. SA516Gr60 steel plate density: 7.85/cubic meter.
7. SA516Gr60 steel plate weight calculation formula: thickness * width * length * density.
II. Chemical Composition Analysis of SA516Gr60 Steel Plate
Chemical Composition of ASTM ASME SA516 Grade 60 70 Steel Plate
| C | Mn |
P max |
S max |
Si max |
||||||
|
t < 12.5 mm |
12.5mm < t =50mm |
50mm < t ≤ 100mm |
100mm < t ≤ 200mm |
t < 200 mm |
t < 12.5 mm |
t 12s.5 m |
||||
|
SA516 Grade 60 |
0.21 |
0.23 |
0.25 |
0.27 |
0.27 |
06-09 |
0.85-1.2 |
0.035 |
0.035 |
0.15-0.4 |
|
SA516 Grade 70 |
0.27 |
0.28 |
0.3 |
0.31 |
0.31 |
0.85-1.2 |
0.85-1.2 |
0.035 |
0.035 |
0.15-0.4 |
III. Flaw Detection Applications of SA516Gr60 Steel Plate
Longitudinal waves can be used to detect defects such as inclusions, cracks, shrinkage, white spots, and delamination in metal ingots, billets, medium and thick plates, large forgings, and relatively simple-shaped parts. Shear waves can be used to detect circumferential and axial cracks and scratches in pipes, as well as pores, slag inclusions, cracks, and incomplete penetration in welds. Surface waves can be used to detect surface defects in simple-shaped parts. Plate waves can be used to detect defects in thin plates.
IV. Z-Direction Properties of SA516Gr60 Steel Plate
1. What is Z-Direction?
Z-Direction steel: also known as "lamellar tearing resistant steel," or what is commonly referred to as Z-Direction properties. In steel structures connected by welding, when the steel plate thickness is 40 mm or greater and subjected to tension along the plate thickness, lamellar tearing resistant steel (commonly referred to as "Z-Direction steel") is required to prevent lamellar tearing during welding. Thick plates are prone to lamellar tearing, so Z-direction performance testing is necessary.
2. Z-Direction Performance and Its Impact on the Steel Plate
Thick steel plates are generally more susceptible to lamellar tearing because the thicker the plate, the more non-metallic inclusions and defects there are. The thicker the weld, the greater the welding stress and deformation. To address this issue, Z-direction steel is best used. This type of steel is based on a certain grade of structural steel and undergoes special smelting and treatment. Its sulfur content is less than one-fifth that of ordinary steel, and its cross-sectional reduction is above 15%.
The mechanical properties of a steel plate along its thickness are called Z-direction properties. Z-direction properties can be determined through tensile testing of specimens, generally measured by cross-sectional reduction. Z-direction steel plates produced in my country are designated by adding the Z-direction steel grade designation Z25, Z25, or Z25 after the parent steel number. The number following the Z represents the cross-sectional reduction (%).
3. SA516Gr60 Steel Plate Cutting Process:
Cutting Process: SA516Gr60 steel plate undergoes factory inspection and is inspected for performance indicators. Cutting and cutting according to drawings are possible. Generally, for steel plates up to 20mm thick, CNC plasma cutting or CNC laser cutting are preferred. For steel plates 30mm and thicker, CNC flame cutting is typically used to control cutting accuracy and time.
