ASTM A500 Round steel pipe 1.Specification:Round A500 steel tube:1/2’’--20’’(20mm—508mm)      2.Length:5.8m, 6m, 11.8m, 12 m and any length can be customized according to customer's requirement. 3.Surface Treatment:Plain, oiled, painted, galvanized, electro-static coating and so on. 4.Package of round A500 steel tube:PVC plastic cloth and in bundles. 5.Transportation:By container or by bulk. 6.Payment: 1.T/T- 30% advance payment, and balance against the copy of B/L within 3-5 days.                       2. L/C 100% irrevocable at sight.                    3.Western Union. 7.Application:Structure Chemical Requirements

Element	Grades A, B and D			Grace C
	Heat	Product	Heat	Product
	Analysis	Analysis	Analysis	Analysis
Carbon, max	0.26	0.3	0.23	0.27
Manganese, max	...	...	1.35	1.4
Phosphorus, max	0.035	0.045	0.035	0.045
Sulfur, max	0.035	0.045	0.035	0.045
Copper, when copper steel	0.2	0.18	0.2	0.18
is specified, min

Tensile Requirements

Round Structural Tubing
	Grade A	Grade B	Grade C	Grade D
Tensile strength, mn, ps (MPa)	45 000	58 000	62 00	58 000
	-310	-400	-427	-400
Yield strength, mn, psi (MPa)	33 000	42 000	46 000	36 000
	-228	-290	-317	-250
Elongation in 2 in. (50.8 mm), min, %A	25B	23C	21D	23C
Shaped Structural Tubing
	Grade A	Grade B	Grade C	Grade D
Tensile strength, mn, ps (MPa)	45 000	58 000	62 00	58 000
	-310	-400	-427	-400
Yield strength, mn, psi (MPa)	39 000	46 000	50 000	36 000
	-269	-317	-345	-250
Elongation in 2 in. (50.8 mm), min, %A	25B	23C	21D	23C