Stainless Steel 347 Fastener Manufacturer, Supplier, and Stockists in India

Stainless Steel 347 Fasteners are columbium-stabilized alloys designed to combat intergranular corrosion in high-heat welded structures. These nut bolts, studs, and anchors are robust solutions for thermal and chemical environments.

SS 347 fasteners perform well in elevated temperature services such as reactor vessels, furnace parts, and boilers. The alloy resists sensitization, making it suitable for continuous and intermittent high-temperature exposure.

These fasteners exhibit strong oxidation resistance and creep strength, making them indispensable in the petrochemical and aerospace sectors. They are also known for excellent formability and welding performance.

Stainless Steel 347 NUT BOLT, STUD, and ANCHOR fasteners ensure performance longevity in extreme industrial conditions with frequent thermal shocks and corrosive media.

Specification Table

Specification	Stainless Steel 347 Fastener
Material Grade	Stainless Steel 347 Fastener
Standards	ASTM A240, ASME SA240
Form	Bolts, Nuts, Washers
Size Range	1/4" to 2" (6 mm to 50 mm)
Wall Thickness	0.5 mm – 12 mm
Length	Single Random, Double Random
Density	7.93 g/cm³
Tensile Strength	860 MPa
Yield Strength (0.2% Offset)	550 MPa
Elongation	30%
Hardness	Rockwell B90
Melting Point	1400°C
Corrosion Resistance	Excellent in marine & chemical environments
Applications	Oil & Gas, Chemical Processing, Marine
Exported To	UAE, USA, Canada, Germany, Africa

Chemical Properties Table

Chemical Element	Stainless Steel 347 Fastener
Nickel (Ni)	9.0 - 13.0%
Chromium (Cr)	17.0 - 19.0%
Iron (Fe)	Balance
Manganese (Mn)	2.0%
Carbon (C)	0.08%
Silicon (Si)	1.0%
Other elements	Columbium (Nb) 10xC min, Sulfur (S) max 0.03%

Mechanical Properties Table

Mechanical Property	Stainless Steel 347 Fastener
Tensile Strength (MPa)	860 MPa
Yield Strength (0.2% Offset, MPa)	550 MPa
Elongation (%)	30%
Hardness (Rockwell)	B90
Modulus of Elasticity (GPa)	200 GPa
Poisson's Ratio	0.3
Shear Modulus (GPa)	80 GPa
Density (g/cm³)	7.93 g/cm³
Reduction of Area (%)	45%
Ultimate Tensile Strength (MPa)	950 MPa

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