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AASHTO - M 270M/M 270

Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched and Tempered Alloy Stuctural Steel Plates for Bridges

inactive
Organization: AASHTO
Publication Date: 1 January 2000
Status: inactive
Page Count: 7
scope:

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], 345W [50W], and 690 and 690W [100 and 100W] are also included in ASTM A 36/A 36M, A 572M/A 572, A 588M/A 588, and A 514M/A 514, respectively. When the supplementary requirements of this specification are specified, they exceed the requirements of A 36/A 36M, A 572M/A 572, A 588M/A 588, and A 514M/A 514.

Grades 345W [50W], HPS 485W [HPS 70W], and 690W [100W] have enhanced atmospheric corrosion resistance.

Grade HPS 485W [HPS 70W] has enhanced toughness when supplementary requirements S83 or S84 are specified.

Grades HPS 485W [HPS 70W], 690 [100], or 690W [100W] shall not be substituted for Grades 250 [36], 345 [50], or 345W [50W]. Grade 345W [50W] shall not be substituted for Grades 250 [36] or 345 [50] 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.

Supplementary requirements are provided where improved internal quality and notch toughness is important. These shall apply only when specified by the purchaser in the order except that Supplementary Requirement S83 or S84 is mandatory for material designated on the contract drawings as main loadcarrying member components subject to tensile stress.

The values stated in either SI units or inch-pound units are to be regarded as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.

Document History

January 1, 2020
Standard Specification for Structural Steel for Bridges
This specification covers carbon and high-strength low-alloy steel structural shapes, plates, and bars and quenched and tempered alloy steel, and stainless steel for structural plates intended for...
January 1, 2019
Standard Specification for Structural Steel for Bridges
This specification covers carbon and high-strength low-alloy steel structural shapes, plates, and bars and quenched and tempered alloy steel, and stainless steel for structural plates intended for...
January 1, 2015
Standard Specification for Structural Steel for Bridges
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...
January 1, 2012
Standard Specification for Structural Steel for Bridges
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. Nine...
January 1, 2011
Standard Specification for Structural Steel for Bridges
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. Nine...
January 1, 2010
Standard Specification for Structural Steel for Bridges
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. Nine...
January 1, 2009
Standard Specification for Structural Steel for Bridges
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. Nine...
January 1, 2008
Standard Specification for Structural Steel for Bridges
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. Nine...
January 1, 2007
Standard Specification for Structural Steel for Bridges
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. Nine...
January 1, 2005
Standard Specification for Structural Steel for Bridges
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. Nine...
January 1, 2004
Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Stuctural Steel Plates for Bridges
A description is not available for this item.
January 1, 2003
Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Stuctural Steel Plates for Bridges
A description is not available for this item.
January 1, 2002
Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Stuctural Steel Plates for Bridges
A description is not available for this item.
M 270M/M 270
January 1, 2000
Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched and Tempered Alloy Stuctural Steel Plates for Bridges
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...
January 1, 1999
Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched and Tempered Alloy Stuctural Steel Plates for Bridges
A description is not available for this item.
January 1, 1997
Standard Specification for Carbon and Low-Alloy Structural Steel Shapes, Plates, and Bars Quenched and Tempered Alloy Stuctural Steel Plates for Bridges
A description is not available for this item.
January 1, 1996
Standard Specification for Stuctural Steel for Bridges
A description is not available for this item.
January 1, 1994
Standard Specification for Stuctural Steel for Bridges
A description is not available for this item.

References

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