SGD400-D
SGD400-D is a grade designated under JIS. Recorded mechanical properties include Rm 450–850 N/mm² and HB 121–240. We hold no composition or cross-standard equivalents for it yet.
- Designations 1
Predicted transformation temperatures
Not enough recorded composition to predict a transformation temperature for this grade — missing: C, Mn, Si, Ni, Cr, Mo.
Physical & mechanical properties
An absent property means we hold no value for it — it is left out rather than estimated, interpolated from a neighbouring grade, or filled from a handbook. It does not mean the property is undefined for the material.
Properties by condition
1 conditions · 2 valuessteeljis| Delivery state | HB | HRB |
|---|---|---|
| Cold finished | 121 – 240 | 69 – 103 |
Every figure holds only for the condition on its own row. Values are never merged across conditions or across sources, never averaged, and never interpolated between two rows. An em dash means no value on file — never zero. Figures are converted to the unit in the column header; the source’s own wording is kept and shown where the two differ.
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