ASTM A453 Grade 662 Class B Stud Bolts | UNS S66220 Specification

ASTM A453 Grade 662 Class B Stud Bolts

S66220

ASTM A453 Grade 662 Class B Stud Bolts are manufactured from A286 Stainless Steel in accordance with ASTM A453 specification.

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Astm A453 Grade 662 Class A Stud Bolts Astm A453 Grade 662 Class B Stud Bolts

ASTM A453 Grade 662 Class B Bolting Types

Specification Grade UNS No. CLASS Type
ASTM A453 Grade 662 S66220 Class B M1 M2 R1 R2

ASTM A453 Grade 662 Class B Stud Bolts Properties

ASTM A453 Grade 662 Class B Stud 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 662 S66220 Content, % 0.08 max 0.40-1.00 0.040 max 0.030 max 0.40-1.00 24.0-28.0 12.0-15.0 2.0-3.5 ... 1.80-2.10 ... 0.35 max ... 0.001-0.010 0.50 max
Product Analysis, Variation Over or Under, % 0.01 over 0.03 0.005 over 0.005 over 0.05 0.2 0.15 0.1 ... 0.05 ... 0.05 over ... 0.0004 under to 0.001 over 0.03 over

ASTM A453 Grade 662 Class B Stud 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 662 B 125 860 80 550  15 18 248-321 24 HRC 35 HRC

ASTM A453 Grade 662 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 662 B 1200 [650] 55 380 100 5

ASTM A453 Grade 662 Class B Heat Treatment

Annealing & Ageing Cycles

Grade Symbol Class Solution Treatment Hardening Treatment
ASTM A453 Grade 662 B 1950 ± 25 °F [1065 ± 14 °C], hold 2 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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