A709 Grade 50W steel is a standard specification for structural steel in bridges with weathering capabilities. With a corrosion index of 6.0 or higher, ASTM A709-50W has substantially better atmosphere corrosion resistance than carbon steels even with the addition of copper. ASTM A709 / A709M - 17 Standard Specification for (B) Manganese, minimum by heat analysis of 0.80 % (0.75 % by product analysis) shall be required for all plates over 3 / 8 in. [10 mm] in thickness; a minimum of 0.50 % (0.45 % by product analysis) shall be required for plates 3 / 8 in. [10 mm] and less in thickness, and for all other products. The manganese to carbon ratio shall not be less than 2 to 1.
Grade 50W [345W], or HPS 50W [HPS 345W] shall not be substituted for Grades 36 , 50  or 50S [345S] without agreement between the purchaser and the supplier. 1.3 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. ASTM A709/A709M-03 Datasheet -- ASTM International home products & services datasheets standards and technical documents astm international standard specification for carbon and high-strength low-alloy structural steel shapes, plates, and bars and quenched-and-tempered alloy structural steel plates for bridges -- astm a709/a709m-03 Filler Metals - Lincoln Electricstrength applications use A709, Grades 70W and HPS 70W and A852 are:MIL 800-HPNi/ LA-75, 860/LA-75 and 960/LA-75. (32) 780 flux is recommended for roundabout applications because of its faster freezing slag. (33) 781 flux is recommended for making high speed, single pass welds on clean plate and sheet steel. (34) 761, 780, 860/L-70.
2015-2016 Plate Steel Specification Guide Page 4 ASTM Specifications continued SPECIFICATION A204 Grade A A204 Grade B A204 Grade C A242s Type 1** Type of Steel Alloy Alloy Alloy Carbon Requirements for Delivery A20 A20 A20 A6 Tensile Strength (ksi) 65/85 70/90 75/95 70 Min. to ¾" incl.; 67 Min. over ¾-1½" incl.; SA709 Grade HPS50W yield strength-C H I D STEEL GRADE A709 Grade 50S steel plate A709 Grade 50S steel grade is a high strength low alloy structural carbon steel used in building bridge projects.Compare A709 Gr.100,and A709 Gr.50w grade,A709 Gr.50S has a lowest yield strength in 345Mpa in usual.A 709 Gr.50S requests killed or semi-killed in manufacture.A709 Grade 50S steel. astm a709 grade hps70w a709grade 50w turkmenistan extrusion - s355j2h steel SupplierWe Have Ready Stock Of ASTM A709-50W Corten Steel Corrosion Resistant Plate & Sheet / ASTM A709-50W Weathering Steel Plates & Sheets.ASTM A709-50W Plates & Sheets Supplier & Stockist [email protected] 0086(371)188.8.131.52 HPS 70W a709grade 50w turkmenistan extrusion Chemtech is A709 Grade 36, A709 Gr 50, HPS 50W, HPS 70W , Steel plate,
1.1.2 Grades 50W [345W], HPS 50W [HPS 345W], HPS 70W [HPS 485W], and HPS 100W [HPS 690W] have enhanced atmospheric corrosion resistance (see 13.1.2). Product availability is shown in Table 1 . (A) See specimen orientation and preparation subsection in the Tension Tests section of