Specifications | Minimum tensile strength (p.s.i.) welded condition1 | Minimum elongation in 2 inches (percent) weld metal (longitudinal) |
AAR TC 128, Gr. B | 81,000 | 19 |
ASTM A 5162 | 70,000 | 20 |
1Minimum stresses to be used in calculations.
2This specification is incorporated by reference (IBR, see §171.7 of this subchapter).
Specifications | Minimum tensile strength (p.s.i.) welded condition3,4 | Minimum elongation in 2 inches (percent) 0 temper weld metal (longitudinal) |
ASTM B 209, Alloy 50521 | 25,000 | 18 |
ASTM B 209, Alloy 50832 | 38,000 | 16 |
ASTM B 209, Alloy 50861 | 35,000 | 14 |
ASTM B 209, Alloy 51541 | 30,000 | 18 |
ASTM B 209, Alloy 52541 | 30,000 | 18 |
ASTM B 209, Alloy 54541 | 31,000 | 18 |
ASTM B 209, Alloy 56521 | 25,000 | 18 |
1For fabrication, the parent plate material may be 0, H112, or H32 temper, but design calculations must be based on minimum tensile strength shown.
20 temper only.
3Weld filler metal 5556 must not be used.
4Maximum stresses to be used in calculations.
Specifications | Minimum tensile strength (p.s.i.) welded condition1 | Minimum elongation in 2 inches (percent) weld metal (longitudinal) |
ASTM A 240/A 240M (incorporated by reference; see§171.7 of this subchapter), Type 304 | 75,000 | 30 |
ASTM A 240/A 240M (incorporated by reference; see§171.7 of this subchapter), Type 304L | 70,000 | 30 |
ASTM A 240/A 240M (incorporated by reference; see§171.7 of this subchapter), Type 316 | 75,000 | 30 |
ASTM A 240/A 240M (incorporated by reference; see§171.7 of this subchapter), Type 316L | 70,000 | 30 |
1Maximum stresses to be used in calculations.
2High alloy steel materials used to fabricate tank and expansion dome, when used, must be tested in accordance with Practice A of ASTM Specification A 262 titled, "Standard Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels" (IBR; see §171.7 of this subchapter). If the specimen does not pass Practice A, Practice B or C must be used and the corrosion rates may not exceed the following:
Test procedure | Material | Corrosion rate i.p.m. |
Practice B | Types 304, 304L, 316, and 316L | 0.0040 |
Practice C | Type 304L | .0020 |
Type 304L and Type 316L test specimens must be given a sensitizing treatment prior to testing. (A typical sensitizing treatment is 1 hour at 1250 F.)
Specifications | Minimum tensile strength (psi) welded condition1 | Minimum elongation in 2 inches (percent) weld metal (longitudinal) |
ASTM B 1622 | 40,000 | 20 |
Specifications | Minimum tensile strength (p.s.i.) welded condition1 | Minimum elongation in 2 inches (percent) weld metal (longitudinal) |
ASTM A 302, Gr. B | 80,000 | 20 |
1Maximum stresses to be used in calculations.
49 C.F.R. §179.200-7