444 Stainless Steel Plate

444 stainless steel is especially suitable for food processing equipment and various water treatment devices (such as heat exchanger, water heater tank, water storage tank, solar energy collection panel, etc.

Detailed introduction

444 Properties:

Density:7.75g/cm³

Tensile Strength:≥415Mpa

Yield Strength：≥310Mpa

Elongation：≥20%

Section Khrinkage：≥45%

Hardness：≤217Hb

The chemical composition of 444：

Grade	C(%)	Si(%)	Mn(%)	P(%)	S(%)	Ni(%)	Cr(%)	Mo(%)	N(%)
444	0.025	1.00	1.00	0.040	0.030	1.00	17.50~19.50	1.75~2.50	0.035

Main: The chemical composition in the table above is the maximum except for the range or minimum values given.

444 corrosion resistance and environment：

444 stainless steel is a kind of ultra-low carbon ammonia, containing 18% chromium and 2% molybdenum, high corrosion resistance ferrite stainless steel.Compared with the commonly used steel 430 stainless steel: 1. The content is about 1.0% high, and added the alloy element molybdenum (Mo), so the steel has good resistance to pitting corrosion, crevices corrosion, stress corrosion ability, its corrosion resistance in some fields is even better than 304 and 316, 2.Adds titanium (Ti), niobium (Nb), fault (Zr) and other stabilized elements, so the steel has good intergranular corrosion resistance and high temperature oxidation resistance, but also can avoid the intergranular corrosion after welding.

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