Equivalent Material of 347 Stainless Steel  Sheet

Standard Specification Of 347 Plate

347 stainless steel composition content.

347 Stainless steel sheet manufacturer

It has good corrosion resistance in acid, alkali and salt solution, and good oxidation resistance and weldability in the air below 800 ° C. 347 stainless steel has excellent high temperature Stress Rupture properties and high temperature Creep Resistance stress mechanical properties are better than 304 stainless steel. Widely used in aviation, power generation, chemistry, petrochemical, food, paper and other fields.

● Chemical composition:

Si: ≤1.00

P: ≤0.045

Sulfur S: ≤0.030

Nb: ≥10*C

Chromium Cr: 17.00~20.00

● Solid solution treatment state material properties:

Yield strength (N/mm2) ≥206

Tensile strength (N/mm2) ≥520

Elongation EL (%) ≥40

HB:≤187

347 Characteristic machining technology

1D -- The surface has discontinuous granular shape, also known as fog surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling.
2D - A slightly silvery white colour.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling.
2B -- Silver white with better gloss and flatness than a 2D surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + quenching and tempering rolling.
Ba - Excellent surface gloss, high reflectivity, like a mirror surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + surface polishing + quenching and tempering rolling.
No.3 -- Good gloss, coarse grain surface.
Processing technology: polishing and tempering rolling for 2D or 2B with 100~120 abrasive materials (JIS R6002).
No.4 -- Good gloss, fine lines on the surface.
Processing process: polishing and tempering rolling for 2D or 2B with 150~180 abrasive materials (JIS R6002).
HL -- Silver grey with hair streaks.
Processing technology: 2D products or 2B products with appropriate granularity of abrasive materials for polishing the surface is a continuous abrasive grain.
MIRRO -- Specular.
Processing technology: 2D products or 2B products with appropriate granularity of the grinding material grinding and polishing to the mirror effect.

+