Industrial Nuts Bolts

Stainless Steel Industrial Nuts and Bolts manufacturer in India

Material	Specification	Standards	Size	Length
Duplex Steel	IS BS ASTM	ASTM / ASME - A/ SA 479 / 479	3 mm to 200 mm	M02 to M30

DUPLEX STEEL UNS S31803 & UNS S32205 NUTS CHEMICAL COMPOSITION

	Cr	N	Ni	C	Mn	Si	P	S	Mo
S31803	min: 21.0 max: 23.0	min: 0.08 max: 0.20	min: 4.5 max: 6.5	0.03 max	2.0 max	1.0 max	0.03 max	0.02 max	min: 2.5 max: 3.5
S32205	min: 22.0 max: 23.0	min: 0.14 max: 0.20	min: 4.5 max: 6.5	0.03 max	2.0 max	1.0 max	0.03 max	0.02 max	min: 3.0 max: 3.5

DUPLEX STEEL UNS S31803 & UNS S32205 NUTS MECHANICAL PROPERTIES

Grade	Tensile Strength (MPa) min	Elongation (% in 50mm)	Yield Strength 0.2% Proof (MPa) min	Hardness Rockwell C (HR C)
UNS-S 31803	650-880	25	448
UNS-S 32205	621	25	448	21 max

Density lbm/in3	Electrical Resistivity mW•in	Electrical Resistivity (in x 10-6)	Heat Capacity BTU/lbm•°F	Thermal Conductivity (BTU/hr•ft•°F)
at 68°F	0.278	0.112	8.7	27.6	33.5
at 212°F		0.119	9.2	26.1	35.4
at 392°F		0.127	9.8	25.4	37.4
at 572°F		0.134	10.4	24.9	39.4

Duplex	Common Name	Related Specifications
		European	UNS	ASTM/ASME
Duplex 2205/31803	SAF 2205 ®	1.4462	S31803/S32205	F51/F60

NUTS
All Metal Lock Nuts
Grade B, Zinc Plated Grade C, Cadmium & Wax, USA Grade C, Zinc Plated	Grade B Grade C
Cap Nuts (Acorn Nuts)
Brass Brass, Nickel Plated Milled, Zinc Plated Stainless Steel 304 (18-8) Two Piece Pressed, Nickel Plated
Castle Nuts
Plain Finish Zinc Plated
Coupling Nuts
Stainless Steel 304 (18-8) Zinc Plated
Flange Nuts
Flange Lock Nuts Grade G, Phosphate & Oil Finish, USA Grade G, Yellow Dichromate Serrated Flange Nuts Serrated, Zinc Plated Serrated, Stainless Steel	Flange Lock Serrated Flange
Flexloc Nuts
Full Height Heavy, Cadmium Plated Full Height Heavy, Plain Finish Full Height Heavy, Stainless Steel Full Height Light, Cadmium Plated Full Height Light, Plain Finish Full Height Light, Stainless Steel Thin Height Heavy, Cadmium Plated Thin Height Heavy, Plain Finish Thin Height Light, Cadmium Plated Thin Height Light, Plain Finish Thin Height Light, Stainless Steel	Full Height Thin Height
Heavy Hex Nuts
ASTM A325, Plain Finish ASTM A325, Zinc Plated Brass Grade 2, Hot Dip Galvanized Grade 2, Plain Finish Grade 2, Zinc Plated Grade 2H, Hot Dip Galvanized Grade 2H, Plain Finish Grade 2H, Zinc Plated Stainless Steel 304 (18-8) Stainless Steel 316
Hex Nuts
Aluminum Brass Grade 2, Plain Finish Grade 2, Zinc Plated Grade 5, Zinc Plated ($) Grade 5, Zinc Plated, USA ($$) Grade 8, Plain Finish Grade 8, Yellow Zinc Plated ($) Grade 8, Yellow Zinc Plated, USA ($$) Hot Dip Galvanized Nylon Silicon Bronze Stainless Steel 304 (18-8) Stainless Steel 316
High Nuts
Heat Treated (Grade 8), Plain Finish Heat Treated (Grade 8), Zinc Plated Grade 5, Plain Finish Grade 5, Zinc Plated
Jam Nuts
Brass Grade 2, Plain Finish Grade 2, Zinc Plated Grade 2, Heavy, Plain Finish Grade 8, Zinc or Yellow Zinc Plated & Plain Finish Stainless Steel 304 (18-8)
Keps Nuts (K-Lock Nuts)
Zinc Plated
Left Hand Nuts
Finished, Grade 2, Plain Finish Finished Jam, Plain Finish Heavy, Plain Finish	Hex Jam Heavy
Machine Screw Nuts
Hex Brass Nylon Silicon Bronze Stainless Steel 304 (18-8) Stainless Steel 316 Zinc Plated Square Zinc Plated	Hex Square
Nylon Insert Lock Nuts (Nylock Nuts)
Thin, Grade 2, Zinc Plated Thin, Stainless Steel Grade 2, Zinc Plated Grade 8, Yellow Zinc Plated Stainless Steel Heavy, Grade 2, Zinc Plated Machine Screw, Stainless Steel Machine Screw, Grade 2, Zinc Plated	Thin Regular Heavy Machine Screw
Slotted Nuts
Finished, Plain Finish Finished, Zinc Plated Heavy, Plain Finish
Square Nuts
Machine Screw, Zinc Plated Regular, Zinc Plated	Machine Screw Regular
Stover Lock Nuts
Cadmium Dichromate Plated
Tee Nuts
Zinc Plated
Thick Nuts
Grade 8, Yellow Zinc Plated, USA Grade 9, Alloy, Cadmium Dichromate Plated
Two Way Lock Nuts
Zinc Plated
Wing Nuts
Forged, Brass Forged, Stainless Steel 304 (18-8) Forged, Zinc Plated