ASTM A519 alloy tubing

ASTM A519 specification covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished.

Pipe and Tube Specifications of ASTM A519

This ASTM A519 specification covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished.

ASTM A519 SAE 1026 Seamless Tubing

ASTM A519 4130 Seamless Pipe

The steel used in the mechanical tubing may be cast in ingots or may be strand cast. When steel of different grades is sequentially strand cast, identification of the resultant transition material is required. The seamless tubing is a tubular product made without a welded seam. It is usually manufactured by hot working steel, and if necessary, by subsequently cold finishing the hot-worked tubular product to produce the desired shape, dimensions and properties.

The tubes shall be furnished in the following shapes: round, square, rectangular and special sections. Heat analysis shall be made to determine the percentages of the elements specified. If secondary melting processes are used, the heat analysis shall be obtained from one remelted ingot or the product of one remelted ingot of each primary melt. The tubing shall be coated with a film of oil before shaping to retard rust when specified This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

Size range(mm):

• Out diameter:10-324mm
• Wall Tickness:1-30mm
• Length:14000mm max

Features Specifications

OD(mm)

Wall Thickness Unit(mm)

2

2.5

3

3.5

4

4.5

5

6

6.5-7

7.5-8

8.5-9

9.5-10

11

12

Φ25-Φ28

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Φ32

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Φ34-Φ36

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Φ38

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Φ40

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Φ42

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Φ45

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Φ48-Φ60

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Φ63.5

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Φ68-Φ73

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Φ76

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Φ80

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Φ83

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Φ89

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Φ95

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Φ102

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Φ108

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Φ114

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Φ121

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Φ127

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Φ133

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Φ140

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Φ146

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Φ152

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Φ159

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Φ168

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Grade:

• ASTM A519 1020
• ASTM A519 1025
• ASTM A519 1026
• ASTM A519 1035
• ASTM A519 1045
• ASTM A519 4130
• ASTM A519 4140

Note:

• DN — Nominal Diameter
• NPS —Nominal Pipe Size

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

Grade	C	Mn	P≤	S≤	Si	Cr	Mo
1008	≤0.10	0.30-0.50	0.040	0.050	-	-	-
1010	0.08-0.13	0.30-0.60	0.040	0.050	-	-	-
1018	0.15-0.20	0.60-0.90	0.040	0.050	-	-	-
1020	0.18-0.23	0.30-0.60	0.040	0.050	-	-	-
1025	0.22-0.28	0.30-0.60	0.040	0.050	-	-	-
1026	0.22-0.28	0.60-0.90	0.040	0.050	-	-	-
4130	0.28-0.33	0.40-0.60	0.040	0.050	0.15-0.35	0.80-1.10	0.15-0.25
4140	0.38-0.43	0.75-1.00	0.040	0.050	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%

Please note the meaning of below abbreviation in table 2:

• HR----Hot Rolled
• CW----Cold Worked
• SR----Stress Relieved
• A----Annealed
• N----Normalized

Dimension Tolerances

Pipe Type	Pipe Sizes		Tolerances
Cold drawn	OD	≤48.3mm	±0.40mm
	WT	≥60.3mm	±1%mm

ASTM A519-89/ASME SA519 Material comparison tables

Seamless mechanical tubing is manufactured from carbon and alloy steels for structural or other mechanical purposes involving machining or heat treating, where close tolerances, smooth finish, or definite physical properties are important factors.

Scope

1.1 this specification covers several frades of carbon and alloy steel seamless mechanical tubing. The frades anr listed in Tables 1, 2, and 3. When welding is used for joining the weldable mechanical tube grades, the welding procedure shall be suitable for the frade, the condition of the components, and the intended service.

1.2 This specification covers both seamless hot-finished emchanical tubing and seamless cold-finished mechanical tubing in sizes up to and including 12 3/4 in.(322.8mm) outside diameter of rround tubes with wall thicknesses as required.

1.3 The tubes shall be furnished in the following shapes, as specified by the purchaser:round, square, rectagular, and special sections.

1.4 Supplementary requirements of an optional nature are provided and when desired shall be so stated in the order.

JIS Number and Corrensponding Foreign Standards

JIS			ASTM			BS			DIN			NF			ISO			Index Number
Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe
G3445	STKM11A	C	A512	MT1010	C	1717	ERWC1	C	2391	St30Si	C				3304	R28	C	C017
			A513	MT1010	C					St30A1	C				3305	"	C
									2393	St28	C				3306	"	C
										RSt28	C
									2394	St28	C
										USt28	C
										RSt28	C
	STKM12A	C	A512	MT1015	C	1717	ERWC2	C	2391	St37-2					3304	R33	C
			A513	MT1015	C	6323	HFS3	C		RSt37-2					3305	"	"
	STKM12B	C	A512	MT1015	C				2394	St37-2					3306	"	"
			A513	MT1015	C					Ust38-2
			A519	MT1015	C					RSt-2
	STKM12C	C				1717	CEWC2	C				A49-322	TU37b	C
						"	CFSC3	C				A49-327	TU37b	C
						6323	CFS3	C
						"	CFS3A	C
	STKM13A	C	A312	MT1020	C	1717	ERWC3	C	2391	St45	C	A49-324	TU37b	C	2937	TS4	C
			A513	MT1020	C				2393	St44-2	C	A49-330	TU37b	C	3304	R37	"
									2394	St44-2	C	A49-343	TU38b	C	3305	"	"
	STKM13B	C	A513	MT1020	C										3306	"	"
	STKM13C	C				1717	CEWC3	C
						"	CFSC4	C
						6323	CFS4	C
	STKM14A	C	A513	MT1020	C	6323	HFS4	C							2937	TS9	C
															3304	R42	"
	STKM14B	C				6323	HFS5	C							3305	R42	C
	STMK14C	C													3306	"	"
	STKM15A	C	A513	1030	C
			A519	1030	C
	STKM15C
	STKM16A	C	A519	1040	C							A49-311	TUXC35	C
												A49-312	TUXC35	C
	STKM16C	C
	STKM17A	C	A519	1050	C	6323	HFS8	C
	STKM17C	C				6323	CFS8	C
	STKM18A	C	A519	1518	C	1717	ERWC5	C				A49-310	TU52b	C
												A49-311	TU52b	C
												A49-312	TU52b	C
	STKM18B	C										A49-321	TU52b	C
												A49-323	TU52b	C
												A49-326	TU52b	C
	STKM18C	C										A49-330	TU52b	C
												A49-341	TS42a	C
												"	TS47a	C
												A49-343	TS18M5	C
	STKM19A	C	A519	1524	C				2391	ST52	C				2937	TS18	C
									2393	ST52-3	C				2938	Gr.1	C
									2394	ST52-3	C				3304	R50	C
															3305	R50	C
															3306	R50	C
	STKM20A	C

JIS Number and Corrensponding Foreign Standards

JIS			ASTM			BS			DIN			NF			ISO			Index Number
Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe
G3441	SCr420TK	Cr																C018
	SCM415TK	CrMo
	SCM418TK	CrMo				6323	CFS10	CrMo
	SCM420TK	CrMo	A519	5120	CrMo
	SCM430TK	CrMo	A519	4130	CrMo
	SCM435TK	CrMo	A519	4135	CrMo
	SCM440TK	CrMo	A519	4140	CrMo	6323	CFS10	CrMo

The values stated in inch-pround units are to be regarded as the standard.

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Packing and Marking

Packed in bundles, wrapped in plastic, and suitably protected for sea-worthy delivery or as requested.

Marking should according to MIL-STD-129 for Military agencies and in accordance with Fed. Std. No.123 for civil agencies including not limited: Standard, graded, size, heat no. lot no.

Note:

• Mill test certificates will be issued according to EN10204.3
• All tubes shall be supplied as per applicable ASTM A519 Specification.
• The tubes Shall be Seamless and the test Methods and Definitions for mechanical Testing of Steel Products
• Orders for material under A519 should include the Quantity (Feet, weight, or number of pieces), Name of material (seamless carbon or alloy steel mechanical tubing), Form (round, square, rectangular or special shapes).
• Orders for material under A519 should provide delivery condition (A, N, QT, SR)

Application:

• For mechanical engineering
• For mechanical and pressure use,and also for transporting steam,water,gas and etc.