304N Stainless Steel Fasteners | ASTM A193 UNS S30451 Specifications

304N Stainless Steel Fasteners

1.4311, 304LN, S30451, X2CRNIN18-10

304N Stainless Steel Fasteners are austenitic stainless steel fasteners manufactured from alloy containing chromium, nickel with addition of nitrogen with restricted carbon content. Stainless Steel 304N Fasteners are used for low temperature service and highly corrosive environments. TorqBolt is an eminent 304 stainless steel fastener supplier in India.

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304N Stainless Steel Bolting 304N Stainless Steel Fasteners 304N Stainless Forgings Type 304N Stainless Nuts Type 304N Stainless Screws 304N Stainless Threaded Rod 304N SS Washers Astm A193 Grade B8Na Bolts Astm A193 Grade B8N Stud Bolts Astm A194 Grade 8N Nuts Astm A194 Grade 8Na Nuts Astm A320 Grade B8Ln Studs Astm A320 Grade B8Lna Bolts

304N Stainless Steel Fasteners Properties

304N Stainless Steel Fasteners Chemical Composition

Austenitic Steels

Grade Description and UNS Designatio Classes C Mn P S Si Cr Ni Mo Cu CbF Ti V N
ASTM A193 Grade B8N, B8NA 304N, S30451 1A, 1B, 1D, 2 0.08 2.00 0.045 0.030 1.00 18.0-20.0 8.0-11.0 . . . . . . . . . . . . . . . 0.10-0.16
Product Analysis VariationB 0.01 0.04 0.010 0.005 0.05 0.20 0.15 . . . . . . . . . . . . . . . 0.01

304N Stainless Steel Fasteners Mechanical Requirements

Austenitic Steels (Inch)

Grade Diameter,
in.
Heat TreatmentB Tensile Strength,
min, ksi
Yield Strength, min,
0.2 % offset, ks
Elongation in 4 D,min Reduction of Area,min Hardness,
max
ASTM A193 Grade B8NA Class 1A All diameters carbide solution treated in the finished condition 75 30 30 50 192 HBW or 90 HRB
ASTM A193 Grade B8N Classes 1B and 1D All diameters carbide solution treated 80 35 30 40 223 HBW or 96 HRBC

Austenitic Steels (Metric)

Grade Class ,
mm
Diameter Heat TreatmentB Tensile Strength,
min,MPa
Yield Strength, min,
0.2 % offset, MPa
Elongation in 4 D,min % Reduction of Area,min % Hardness,
max
ASTM A193M Grade B8NA Class 1A All diameters carbide solution treated in the finished condition 515 205 30 50 192 HBW or 90 HRB
ASTM A193M Grade B8N Classes 1B and 1D All diameters carbide solution treated 550 240 30 40 223 HBW or 96 HRBC

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