ASTM A519 Seamless Mechanical Steel Tubing

Release Tme: 2024-07-15

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ASTM A519 specification covers several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished. the ASTM A519 pipe is mainly used for mechanical engineering, mechanical and pressure use, and also for transporting steam, water, gas and etc.

Size
Out diameter:10-324mm
Wall Tickness:1-30mm
Lengths: Pipes are supplied with lengths according to standard requirements. Any lengths different from the standard ones are subject to additional negotiations.

Grade:
ASTM A519 1020
ASTM A519 1025
ASTM A519 1026
ASTM A519 1035
ASTM A519 1045
ASTM A519 4130
ASTM A519 4140

Pipes are supplied:
- black and bare
- external varnished with black or clear lacquer
- oiled. Upon request pipes, ends are protected with plastic caps.
Marking: Pipes are supplied with marking according to standards and customer requests. Marking is painted and/or hard stenciled on pipe ends.

Steel grade and Chemical composition (%) of ASTM A519:

Grade	C	Mn	P≤	S≤	Si	Cr	Mo
1008	≤0.10	0.30-0.50	0.04	0.05	-	-	-
1010	0.08-0.13	0.30-0.60	0.04	0.05	-	-	-
1018	0.15-0.20	0.60-0.90	0.04	0.05	-	-	-
1020	0.18-0.23	0.30-0.60	0.04	0.05	-	-	-
1025	0.22-0.28	0.30-0.60	0.04	0.05	-	-	-
1026	0.22-0.28	0.60-0.90	0.04	0.05	-	-	-
4130	0.28-0.33	0.40-0.60	0.04	0.05	0.15-0.35	0.80-1.10	0.15-0.25
4140	0.38-0.43	0.75-1.00	0.04	0.05	0.15-0.35	0.80-1.10	0.15-0.25

Mechanical Properties of ASTM A519:

Grade	Condition	MPa Tenslle Point	Yield Point	Elongation
1020	CW	≥414	≥483	≥5%
	SR	≥345	≥448	≥10%
	A	≥193	≥331	≥30%
	N	≥234	≥379	≥22%
1025	CW	≥448	≥517	≥5%
	SR	≥379	≥483	≥8%
	A	≥207	≥365	≥25%
	N	≥248	≥379	≥22%
4130	SR	≥586	≥724	≥10%
	A	≥379	≥517	≥30%
	N	≥414	≥621	≥20%
4140	SR	≥689	≥855	≥10%
	A	≥414	≥552	≥25%
	N	≥621	≥855	≥20%