BS DIN EN 1.4547 stainless Steel Fasteners | 254 SMO UNS S31254 Specifications

Werkstoff 1.4547 Stainless Steel Fasteners

1.4547, S31254, X1CRNIMOCUN20-18-7

1.4547 Fasteners are classified under Stainless Steel. Werkstoff 1.4547 Fasteners are internationally known as fasteners manufactured from 254 SMO.

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6Mo Bolts 254 Smo Stainless Fasteners 254 Smo Stainless Forgings 254 Smo SS Nuts 254 Smo SS Screws 6Mo Threaded Rod 254 Smo Stainless Steel Washers Astm A193 Grade B8Mlcun Class 2 Bolts Astm A193 Grade B8Mlcuna Bolts Astm A194 Gr. 8Mlcun Nuts Astm A194 Grade 8Mlcuna Nuts 1.4547 Washers

Werkstoff 1.4547 Stainless Steel Fasteners Properties

Werkstoff 1.4547 Stainless Steel Fasteners Chemical Requirements

Grade/Identification
Symbol
UNS Designation Composition, %
C Mn P S Si Ni Cr Mo CbB Ti Other
Elements
ASTM A182
Grade F44
S31254 0.020 1.00 0.030 0.010 0.80 17.5-18.5 19.5-20.5 6.0-6.5 ... ... Cu 0.50-1.00
N 0.18-0.25

Werkstoff 1.4547 Stainless Steel Fasteners Mechanical Requirements

Grade
Symbol
Tensile Strength,
min, ksi [MPa]
Yield Strength,
min, ksi [MPa]B
Elongation in 2 in.
[50 mm] or 4D,
min, %
Reduction of Area,
min, %
Brinell Hardness
Number, HBW,
unless otherwise indicated
ASTM A182
Grade F44
94 [650] 44 [300] 35 50 . . .

254 SMO Heat Treatment

Grade Heat Treat Type Austenitizing/Solutioning Temperature, Minimum or Range, °F [°C]A Cooling Media Quenching Cool Below °F [°C] Tempering Temperature,
Minimum or
Range, °F [°C]
ASTM A182
Grade F44
solution treat and quench 2100 [1150] liquidE 500 [260] B

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