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Hot Rolled Plate Spec Table
Hot Rolled Plate Specifications — 36 sizes
KS D 3503JIS G 3101
Hot-rolled (HR) steel plate such as SS400 and SPHC, used for structures, frames, and machine bases. Has mill scale, available in 1.2–25mm thickness.
Practical Notes
- Remove mill scale before painting. Paint over scale causes adhesion failure and peeling.
Selection Guide
General-purpose hot-rolled steel plate. SS400/SPHC standard for structures, frames, and machine bases. Mill scale surface requires cold-rolled for appearance-critical use. Thickness 1.2–25mm.
KSJISHot Rolled Plate
12 sizesThe dimensions below are identical across KS D 3503 · JIS G 3101.
| Nominal | t | Width | Length | Weight | Material |
|---|---|---|---|---|---|
| t1.6 | 1.6 | 914~1524 | 1829~6096 | 12.56 | SS400 |
| t2.0 | 2 | 914~1524 | 1829~6096 | 15.7 | SS400 |
| t2.3 | 2.3 | 914~1524 | 1829~6096 | 18.06 | SS400 |
| t3.2 | 3.2 | 914~1829 | 1829~6096 | 25.12 | SS400 |
| t4.5 | 4.5 | 914~2000 | 2000~12000 | 35.33 | SS400 |
| t6.0 | 6 | 914~2500 | 2000~12000 | 47.1 | SS400 |
| t9.0 | 9 | 914~2500 | 2000~12000 | 70.65 | SS400 |
| t12.0 | 12 | 1524~2500 | 3000~12000 | 94.2 | SS400 |
| t16.0 | 16 | 1524~2500 | 3000~12000 | 125.6 | SS400 |
| t19.0 | 19 | 1524~2500 | 3000~12000 | 149.15 | SS400 |
| t22.0 | 22 | 1524~2500 | 3000~12000 | 172.7 | SS400 |
| t25.0 | 25 | 1524~2500 | 3000~12000 | 196.25 | SS400 |
Key Features
- KS D 3501 (SPHC/SPHD/SPHE); hot-rolled t1.2–25 mm with mill scale surface
- Can produce thicker plates than cold-rolled; classified as structural or press-grade
- Pickling achieves SPCC-grade surface; excellent cost competitiveness
Key Applications
Building steel plates, automotive frames, ship hulls, bridge deck plates, tank/pressure vessel shells
FAQ
Difference between SS400 and SPHC?
SS400 is structural (tensile strength-based); SPHC is for forming (chemistry + formability-based). Choose SS400 for structural strength, SPHC for press/bending work.