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AASHTO M 270M/M 270
Standard Specification for Structural Steel for Bridges
Year: 2015
Abstract: This specification covers carbon and high-strength low-alloy steel structural shapes, plates, and bars and quenched and tempered alloy steel for structural plates intended for use in bridges.
Grades 250 [36], 345 [50], 345S [50S], or 345W [50W] are also included in ASTM A36/A36M, A572/A572M, A992/A992M, A588/A588M, and A514/A514M. When the supplementary requirements of this specification are specified, they exceed the requirements of A36/A36M, A572/A572M, A992/A992M, A588/A588M, and A514/A514M.
Grades 345W [50W], HPS 345W [HPS 50W], HPS 485W [HPS 70W], and HPS 690W [HPS 100W] have enhanced atmospheric corrosion resistance (Section 13.1.2). Product availability is shown in Table 2. Grade HPS 485W [HPS 70W] or HPS 690W [HPS 100W] shall not be substituted for Grade 250 [36], 345 [50], 345S [50S], 345W [50W], or HPS 345W [HPS 50W]. Grade 345W [50W] or HPS 345W [HPS 50W] shall not be substituted for Grade 250 [36], 345 [50], or 345S [50S] without agreement between the purchaser and supplier.
When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized. See Appendix X3 of ASTM A6/A6M for information on weldability.
Grades 250 [36], 345 [50], 345S [50S], or 345W [50W] are also included in ASTM A36/A36M, A572/A572M, A992/A992M, A588/A588M, and A514/A514M. When the supplementary requirements of this specification are specified, they exceed the requirements of A36/A36M, A572/A572M, A992/A992M, A588/A588M, and A514/A514M.
Grades 345W [50W], HPS 345W [HPS 50W], HPS 485W [HPS 70W], and HPS 690W [HPS 100W] have enhanced atmospheric corrosion resistance (Section 13.1.2). Product availability is shown in Table 2. Grade HPS 485W [HPS 70W] or HPS 690W [HPS 100W] shall not be substituted for Grade 250 [36], 345 [50], 345S [50S], 345W [50W], or HPS 345W [HPS 50W]. Grade 345W [50W] or HPS 345W [HPS 50W] shall not be substituted for Grade 250 [36], 345 [50], or 345S [50S] without agreement between the purchaser and supplier.
When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized. See Appendix X3 of ASTM A6/A6M for information on weldability.
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AASHTO M 270M/M 270
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| contributor author | AASHTO - American Association of State Highway and Transportation Officials | |
| date accessioned | 2017-09-04T16:04:01Z | |
| date available | 2017-09-04T16:04:01Z | |
| date copyright | 2015.01.01 | |
| date issued | 2015 | |
| identifier other | RSCXKFAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/67326 | |
| description abstract | This specification covers carbon and high-strength low-alloy steel structural shapes, plates, and bars and quenched and tempered alloy steel for structural plates intended for use in bridges. Grades 250 [36], 345 [50], 345S [50S], or 345W [50W] are also included in ASTM A36/A36M, A572/A572M, A992/A992M, A588/A588M, and A514/A514M. When the supplementary requirements of this specification are specified, they exceed the requirements of A36/A36M, A572/A572M, A992/A992M, A588/A588M, and A514/A514M. Grades 345W [50W], HPS 345W [HPS 50W], HPS 485W [HPS 70W], and HPS 690W [HPS 100W] have enhanced atmospheric corrosion resistance (Section 13.1.2). Product availability is shown in Table 2. Grade HPS 485W [HPS 70W] or HPS 690W [HPS 100W] shall not be substituted for Grade 250 [36], 345 [50], 345S [50S], 345W [50W], or HPS 345W [HPS 50W]. Grade 345W [50W] or HPS 345W [HPS 50W] shall not be substituted for Grade 250 [36], 345 [50], or 345S [50S] without agreement between the purchaser and supplier. When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized. See Appendix X3 of ASTM A6/A6M for information on weldability. | |
| language | English | |
| title | AASHTO M 270M/M 270 | num |
| title | Standard Specification for Structural Steel for Bridges | en |
| type | standard | |
| page | 14 | |
| status | Active | |
| tree | AASHTO - American Association of State Highway and Transportation Officials:;2015 | |
| contenttype | fulltext |