ASTM B462 Specification

Forgings, Fasteners, Boltings, Stud Bolts, Screws, Nuts

Scope

ASTM B462 specification covers forged or rolled UNS N06030, UNS N06035, UNS N06022, UNS N06200, UNS N06059, UNS N10362, UNS N06686, UNS N08020, UNS N08367, UNS N10276, UNS N10665, UNS N10675, UNS N10629, UNS N08031, UNS N06045, UNS N06025, UNS N06699, and UNS R20033 pipe flanges, forged fittings, and valves and parts intended for corrosive high-temperature service.
The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
ASTM B462 standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.
ASTM B462 is international standard and was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Chemical Requirements

Composition, %Element
UNSC, maxMn, maxP, maxS, maxSi, maxNiCrMoCuNb + TaNFeS, maxWV, maxTi, maxZ, maxNbTaNi + MoAl, maxBYCe
UNS N080200.072.000.0450.0351.0032.00-38.0019.00-21.002.00-3.003.00-4.008 × carbon-1.00RemainderA
UNS N083670.0302.000.0400.0301.0023.50 to 25.5020.00 to 22.006.00 to 7.000.75 max0.18 to 0.25RemainderA
UNS R200330.0152.00.020.010.5030.0-33.031.0-35.00.50-2.00.30-1.200.35-0.60RemainderA
UNS N060300.031.50.040.020.8RemainderA28.0-31.54.0-6.01.0-2.40.30-1.5013.0-17.05.01.5-4.0
UNS N060220.0150.500.020.020.08RemainderA20.0-22.512.5-14.52.0-6.02.52.5-3.50.35
UNS N062000.0100.500.0250.0100.08RemainderA22.0-24.015.0-17.00.3-1.93.0 max2.00.50
UNS N102760.0101.00.040.030.08RemainderA14.5-16.515.0-17.04.0-7.02.53.0-4.50.35
UNS106650.021.00.040.030.10RemainderA1.0 max26.0-30.02.0 max1.0
UNS N106750.013.00.0300.0100.10RemainderA1.0-3.027.0-32.00.201.0-3.03.03.0 max0.200.20.100.20 max0.20 max94.0-98.00.50
UNS N066990.005-0.100.500.020.010.50RemainderA26.0-30.00.50 max0.05 max2.5 max0.600.100.50 max1.9-3.00.008 max
UNS N060590.0100.50.0150.0100.10RemainderA22.0-24.015.0-16.50.50 max1.5 max0.30.1-0.4
UNS N103620.0100.600.0250.0100.08RemainderA13.8-15.621.5-23.01.25 max0.50
UNS N066860.0100.750.040.020.08RemainderA19.0-23.015.0-17.05.0 max3.0-4.40.02-0.25
UNS N080310.0152.00.0200.0100.330.0-32.026.0-28.06.0-7.01.0-1.40.15-0.25RemainderA
UNS N060450.05-0.121.00.020.0102.5-3.045.0 min26.0-29.00.3 max21.0-25.00.03-0.09
UNS N060250.15-0.250.150.020.0100.5RemainderA24.0-26.00.1 max8.0-11.00.1-0.20.01-0.101.8-2.40.05-0.12
UNS N106290.011.50.0400.0100.05RemainderA0.5-1.526.0-30.00.51.0-6.02.50.1-1.5
UNS N060350.0500.500.0300.0150.60RemainderA32.25-34.257.60-9.000.30 max2.00 max1.000.60 max0.200.40
  • A Shall be determined arithmetically by difference.

Mechanical Requirements

UNS DesignationTensile Strength, minYield Strength, minElongation in 2 in.
or 50 mm,
min, %
Reduction of Area,
min, %
ksiMPaksiMPa
UNS N0802080551352413050
UNS N0836795655453103050
UNS R200331097505538040
UNS N06030855863524130
UNS N060221006904531045
UNS N06035855863524130
UNS N062001006904531045
UNS N102761006904128340
UNS N106651107605135040
UNS N106751107605135040
UNS N060591006904531045
UNS N103621057254531040 
UNS N066861006904531045
UNS N08031946504027640
UNS N06045906203524135
UNS N06025986803927030
UNS N106291107605135040
UNS N06699896103524040

Certifications

  • EN 10204 3.1
  • EN 10204 3.2
  • PED 2014/68/EC
  • MERKBLATT AD 2000 W2/W7/W10
  • API 20 E BSL 1/ BSL 2
  • NACE MR 0175
  • NACE MR 0103

Supplementary Requirements

S1Corrosion Tests for UNS N08020
S2Positive Material Identification Examination