Cart
0
Product
Products
(empty)
No products
To be determined
Shipping
$0.00
Total
Product successfully added to your shopping cart
Quantity
Total
There are 0 items in your cart.
There is 1 item in your cart.
Total products
Total shipping
To be determined
Total
Reduced price!
View larger
View larger
AASHTO M 270M/M 270
New product
AASHTO M 270M/M 270
AASHTO M 270M/M 270 2019 Edition, 2019 Standard Specification for Structural Steel for BridgesMore info
Description / Abstract:
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 use in bridges.
Grades 250 [36], 345 [50], 345S [50S], 345W [50W], and 345CR [50CR] are also included in ASTM A36/A36M, A572/A572M, A992/A992M, A588/A588M, A514/A514M, and A1010/A1010. When the supplementary requirements of this specification are specified, they exceed the requirements of A36/A36M, A572/A572M, A992/A992M, A588/A588M, A514/A514M, and A1010/A1010M.
Grades 345W [50W], 345CR [50CR], 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], 345CR [50CR], or HPS 345W [HPS 50W]. Grade 345W [50W], 345CR [50CR], 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.
For structural products to be used as tension components requiring notch toughness testing, standardized requirements are provided in this standard. These requirements are based on American Association of State Highway and Transportation Officials (AASHTO) requirements for both fracture-critical and non-fracture-critical members.
Supplementary requirements are available but shall apply only if specified in the purchase order.
The values stated in either SI units or inch-pound units are to be regarded separately 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 is to be used independently of the other, without combining values in any way.
For structural products cut from coiled product and furnished without heat treatment or with stress relieving only, the additional requirements of ASTM A6/A6M, including additional testing requirements and the reporting of additional tests, apply.
Grades 250 [36], 345 [50], 345S [50S], 345W [50W], and 345CR [50CR] are also included in ASTM A36/A36M, A572/A572M, A992/A992M, A588/A588M, A514/A514M, and A1010/A1010. When the supplementary requirements of this specification are specified, they exceed the requirements of A36/A36M, A572/A572M, A992/A992M, A588/A588M, A514/A514M, and A1010/A1010M.
Grades 345W [50W], 345CR [50CR], 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], 345CR [50CR], or HPS 345W [HPS 50W]. Grade 345W [50W], 345CR [50CR], 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.
For structural products to be used as tension components requiring notch toughness testing, standardized requirements are provided in this standard. These requirements are based on American Association of State Highway and Transportation Officials (AASHTO) requirements for both fracture-critical and non-fracture-critical members.
Supplementary requirements are available but shall apply only if specified in the purchase order.
The values stated in either SI units or inch-pound units are to be regarded separately 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 is to be used independently of the other, without combining values in any way.
For structural products cut from coiled product and furnished without heat treatment or with stress relieving only, the additional requirements of ASTM A6/A6M, including additional testing requirements and the reporting of additional tests, apply.