ASTM A709 Gr.36/Gr.50/Gr.50W steel work / steel structure /steel  machining parts

ASTM A709 Gr.36/Gr.50/Gr.50W steel work / steel structure /steel machining parts

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10-May-2024

ASTM A709 Gr.36/Gr.50/Gr.50W steel work/steel structure/steel machining parts intended for use in bridges,railways,ships,vehicles,machine tools,etc.

ASTM A709 steel covers carbon and high-trength low alloy steel structural shapes, plates, and bars and quenched and tempered alloy steel for structural plates.
A709 Gr.50 steel equivalent: GB/T 714 Q345qC grade

ASTM A709 Gr.36 steel chemical composition

Thickness in mm	Shapes all	Plates				Bars
Thickness in mm	Shapes all	To 20	20 to 40	40 to 65	65 to 100	To 20	20 to 40	40 to 100
C max %	0.26	0.25	0.25	0.26	0.27	0.26	0.27	0.28
Mn %	...	...	0.8-1.2	0.8-1.2	0.85-1.2	...	0.6-0.9	0.6-0.9
P max %	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04
S max %	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05
Si	0.40 max	0.40 max	0.40 max	0.15-0.40	0.15-0.40	0.40 max	0.40 max	0.40 max
Cu,min %	0.20	0.20	0.20	0.20	0.20	0.20	0.20	0.20

ASTM A709 Gr.50 steel work/steel structure / steel machining parts chemical composition,max

C	Mn	P	S
0.23	1.35	0.04	0.05

ASTM A709 Gr.50W steel work/steel structure/steel machining parts chemical composition,max

	Type A	Type B	Type C
C	0.19 max	0.20 max	0.15 max
Mn	0.80-1.25	0.75-1.35	0.80-1.35
P	0.04 max	0.04 max	0.04 max
S	0.05 max	0.05 max	0.05 max
Si	0.30-0.65	0.15-0.50	0.15-0.40
Ni	0.40 max	0.50 max	0.25-0.50
Cr	0.40-0.65	0.40-0.70	0.30-0.50
Cu	0.25-0.40	0.20-0.40	0.20-0.50
V	0.02-0.10	0.01-0.10	0.01-0.10

ASTM A709 Gr.36/Gr.50/Gr.50W steel mechanical properties

Grade	Plate thickness in mm	Structural shape flange or leg thickness,in mm	Yield point or yield strength ksi mpa	Tensile strength ksi mpa
36	To 100	To 75	250 min	400-550
36		Over 75	250 min	400 min
50	To 100	all	345 min	450 min
50w	To 100	all	345 min	485 min

ASTM A709 Gr.36/Gr.50/Gr.50W steel heat treatment

For quenched and tempered Grades HPS 50W [HPS 345W] and HPS 70W [HPS 485W], the heat treatment shall be performed by the manufacturer and shall consist of heating the steel to not less than 1650°F [900°C], quenching it in water or oil, and tempering it at not less than 1100°F [590°C]. The heat-treating temperatures shall be reported on the test certificates.

ASTM A709 Gr.36/Gr.50/Gr.50W Steel work / steel structure/steel machining parts testing equipment:calipers,pressure sensors, magnetic particle inspection machine, digital ultrasonic flaw detector, hydraulic universal testing machine, digital thickness gauge etc.

KUNFENG have our own processing factory and the pre- treatment factory, pre-treatment for shipbuilding steel (ball blasting , derusting,painting),surface pretreatment line on steel plates and profile steel. And we can also provide the customers our other processing services,like cutting,welding,drilling holes,galvanizing by the lowest cost price . If you need ASTM A709 Gr.36/Gr.50/Gr.50W steel work/steel structure/steel machining parts,please contact KUNFENG.At the same time,as long as you have the drawings, we can customize ASTM A709 Gr.36/Gr.50/Gr.50W steel work/steel structure /steel machining parts for you!