ASTM A453 Grade 665B Bolts | UNS S66545 Specification

ASTM A453 Grade 665B Bolts

S66545

ASTM A453 Grade 665B Bolts are manufactured from A286 Stainless Steel in accordance with ASTM A453 specification.

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Astm A453 Grade 665A Bolts Astm A453 Grade 665 B Bolts

ASTM A453 Grade 665 Class B Bolting Types

Specification Grade UNS No. CLASS Type
ASTM A453 Grade 665 S66545 Class B M1 M2 R1 R2

ASTM A453 Grade 665B Bolts Properties

ASTM A453 Grade 665B Bolts Chemical Requirements

Grade UNS Number Elements C Mn P S Si Ni Cr Mo W Ti Nb A Al V B Cu
ASTM A453 Grade 665 S66545 Content, % 0.08 max 1.25-2.00 0.040 max 0.030 max 0.10-0.80 24.0-28.0 12.0-15.0 1.25-2.25 ... 2.70-3.3 ... 0.25 max ... 0.01-0.07 0.25 max
Product Analysis Variation, Over or Under, % 0.01 over 0.04 0.005 over 0.005 over 0.05 0.2 0.15 0.1 ... 0.05 ... 0.05 over ... 0.01 0.03 over

ASTM A453 Grade 665B Bolts Mechanical Requirements

Grade Class Tensile Strength, min Yield Strength (0.2 % Offset), min Elongation in 4× Diam, min, % Reduction of Area, min, % Brinell Hardness Number Approximate Rockwell Hardness, B and C
ksi MPa ksi MPa min max
ASTM A453 Grade 665 B 155 1070 120 830  12 15 311-388 32 HRC 41 HRC

ASTM A453 Grade 665 Class B Stress Rupture Properties

stress-rupture
Grade Class Test Temperature, °F [°C] Stress, min Time to Rupture, min, hA Elongation, min, %
ksi MPa
ASTM A453 Grade 665 B 1200 [650] 70 485 100 5

ASTM A453 Grade 665 Class B Heat Treatment

Annealing & Ageing Cycles

Grade Symbol Class Solution Treatment Hardening Treatment
ASTM A453 Grade 665 B 2000 ± 25 °F [1095 ± 14 °C], hold 3 h, liquid quench 1350 to 1400 °F [730 to 760 °C], hold 20 h, furnace cool to 1200 ± 25 °F [650 ± 14 °C], hold 20 h, air cool

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