ASTM A519 Steel Pipe, ASTM A519 mechanical tubing Sunny Steeel

It is a seamless carbon and alloy steel mechanical tube used in a wide range of industrial applications where mechanical properties and durability are crucial. This remarkable pipe standard, defined by the American Society for Testing and Materials (ASTM), ensures that industries across the board can access high-quality, reliable tubing.

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.

The ASTM A519 steel pipe, often referred to as mechanical tubing, stands as a testament to engineering excellence.

Size range(mm)

Outer diameter: 10-324mm
Wall Thickness: 1-30mm
Length: 14000mm max

Quality and Testing:

ASTM A519 steel pipes are subjected to rigorous quality control measures, ensuring that they meet the specified mechanical and dimensional requirements. Various tests, including hardness, tensile, and impact tests, are conducted to guarantee their reliability.

What is ASTM A519?

ASTM A519 covers several grades of carbon and alloy steel seamless mechanical tubing. The standard is also acceptable in the manufacture of piping. It is manufactured by hot working and then cold finishing the steel into round, square, rectangle or special shapes.

Scope

ASTM A519 specification covers several frades of carbon and alloy steel seamless mechanical tubing.

1.1 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.

Reference documents

ASTM A370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products.
ASTM A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products.
ASTM A1040 Guide for Specifying Harmonized Standard Grade Compositions for Wrought Carbon, Low-Alloy, and Alloy Steels.
ASTM A1058 Test Methods for Mechanical Testing of Steel Products – Metric.

Related ASTM A519 Steel Pipe

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	●	●	●	●	●	●
Φ32		●	●	●	●	●	●
Φ34-Φ36		●	●	●	●	●	●
Φ38		●	●	●	●	●	●
Φ40			●	●	●	●	●
Φ42			●	●	●	●	●
Φ45			●	●	●	●	●	●
Φ48-Φ60			●	●	●	●	●	●	●
Φ63.5				●	●	●	●	●	●	●
Φ68-Φ73					●	●	●	●	●	●
Φ76					●	●	●	●	●	●	●	●	●	●
Φ80					●	●	●	●	●	●	●	●	●	●
Φ83					●	●	●	●	●	●	●	●	●	●
Φ89					●	●	●	●	●	●	●	●	●	●
Φ95					●	●	●	●	●	●	●	●	●	●
Φ102					●	●	●	●	●	●	●	●	●	●
Φ108					●	●	●	●	●	●	●	●	●	●
Φ114						●	●	●	●	●	●	●	●	●
Φ121						●	●	●	●	●	●	●	●	●
Φ127						●	●	●	●	●	●	●	●	●
Φ133						●	●	●	●	●	●	●	●	●
Φ140							●	●	●	●	●	●	●	●
Φ146							●	●	●	●	●	●	●	●
Φ152							●	●	●	●	●	●	●	●
Φ159							●	●	●	●	●	●	●	●
Φ168							●	●	●	●	●	●	●	●

Note:

DN — Nominal Diameter
NPS —Nominal Pipe Size

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

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	Index Number
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
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

Application

Alloy steel pipes are ideally suitable for chemical, petrochemicals, and other energy-related applications.

The alloy steel pipe adopts high quality carbon steel, alloy structural steel and stainless & heat resisting steel as raw material through hot rolling or cold drawn to be made.

Alloy steel can be used in process area where carbon steel has limitation such as

High-temperature services such as heater tubes
Low-temperature services such as cryogenic application
Very high presser service such as steam header

As an important element of steel products, alloy steel pipe can be divided into seamless steel pipe and welded steel pipe according to the manufacturing technique and tube billet shape.

Here you can see the common alloy steel grade that you will come across.

For Pipes: ASTM A335 Gr P1, P5, P11, P9
For Wrought Fittings: ASTM A234 Gr.WP5, WP9, WP11
For Forged Fittings: ASTM A182 F5, F9, F11 etc.

Why the application of alloy steel pipe is wider than others

There are many kinds of materials used for transport in industrial production. Specifically we will have more choices and it is not limited to the use of alloy steel pipe. But even in the face of more choices, many people tend to choose alloy steel pipe. People make their own choices will have their own reasons. This means the alloy steel pipe application has its own advantages. Compared with transmission lines made of other materials, after it meets the basic application requirements, its quantity is lighter. Then in the practical application of alloy steel pipe, it will have more advantages because of this. Besides its physical characteristic advantage, it also has economic advantages. The wide application of alloy steel pipe is with kinds of reasons. So in practical usage, we can exploit the advantages to the full, in this way can we get more profits in these applications of alloy steel pipe.

What requirements should alloy steel pipe application meet

The transportation of kinds of gases or liquids in production needs to rely on alloy steel pipe. This shows that the actual role of alloy steel pipe application is important. High temperature resistant and low temperature resistant is the tolerance of temperature. In the practical application of alloy steel pipe, there will be many materials need to be transported. However their temperatures are not the same. So this can be the basic requirement to alloy steel pipe. It needs more corrosion resistance. Corrosion resistant material is the best material during transporting, because it is corrosion resistant. So it can be used in more occasions. And it is definitely very convenient for users.

The biggest advantages of alloy steel pipe

Can be 100% recycled, environmentally friendly, energy-saving, resource conservation, national strategy, national policy to encourage the expansion of the field of application of high-pressure alloy pipe. Of alloy steel pipe total consumption accounted steel in the proportion is only half of the developed countries, to expand the field of use of the alloy steel pipe to provide a wider space for the development of the industry. The future needs of the average annual growth of China’s high-pressure alloy steel pipe long products up to 10-12%.

Specification, standard and identification of alloy steel pipes

Alloy Steel pipe contains substantial quantities of elements other than carbon such as nickel, chromium, silicon, manganese, tungsten, molybdenum, vanadium and limited amounts of other commonly accepted elements such as manganese, sulfur, silicon, and phosphorous.

Industries We Serve

Our team of experienced sales specialists proudly partners with gas and chemical processors, power generation plants, oil refineries, and related industries to offer piping components and value-added services.

The biggest advantages of alloy steel pipe can be 100% recycled, environmentally friendly, energy-saving, resource conservation, national strategy, national policy to encourage the expansion of the field of application of high-pressure alloy pipe. Of alloy tube total consumption accounted steel in the proportion is only half of the developed countries, to expand the field of use of the alloy tube to provide a wider space for the development of the industry. According to the Chinese Special Steel Association alloy pipe Branch Expert Group, the future needs of the average annual growth of China’s high-pressure alloy pipe long products up to 10-12%.

Delivery

Steel pipe delivery status(condition)

Steel pipe delivery status(condition): cold / hard (BK), cold / soft (BKW), after cold stress relief annealing (BKS), annealing (GBK), normalized (NBK).

Condition on delivery of steel pipe

Term	Symbol	Explanation
Cold-finished/hard (cold-finished as-drawn)	BK	No heat treatment after the last cold-forming process. The tubes therefore have only low deformability.
Cold-finished/soft (lightly cold-worked)	BKW	After the last heat treatment there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits.
Annealed	GBK	After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum.
Normalized	NBK	The tubes are annealed above the upper transformation point in a controlled atmosphere or under vacuum.

The general cold strip mills, volume should go through continuous annealing (CAPL unit) to eliminate cold hardening and rolling stress, or batch annealing reach the mechanical properties of the corresponding standard specifies. Cold rolled steel surface quality, appearance, dimensional accuracy better than hot-rolled plate, and right-rolled thin product thickness is about 0.18mm, so the majority of users favor.

Cold rolled steel coil substrate products deep processing of high value-added products. Such as electro-galvanized, hot dip galvanized, electro-galvanized fingerprint resistant, painted steel roll damping composite steel, PVC laminating steel plates, etc., so that the excellent quality of these products has a beautiful, high resistance to corrosion, has been widely used.

Cold rolled steel coil finishing after annealing, cut the head, tail, trimming, flattening, smooth, heavy volume, or longitudinal clipboard. Cold-rolled products are widely used in automobile manufacturing, household electrical appliances, instruments, switches, buildings, office furniture and other industries. Steel plate strapping package weight of 3 to 5 tons. Flat sub-volume typically 3 to 10 tons / volume. Coil diameter 6m.

Packing

Bare packing/bundle packing/crate packing/wooden protection at the both sides of tubes and suitably protected for sea-worthly delivery or as requested.

Placing steel pipes into containers

There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method to work prevent rusting and Sea transportation security.

Plastic caps plugged at the two sides of pipe ends
Should be avoided by the steel strapping and transport damage
Bundled signs should be uniform and consistent
The same bundle(batch) of steel pipe should be came from the same furnace.
The steel pipe has the same furnace number, the same steel grade, the same specifications.

Our packing can meet any needs of the customers.

Alloying Elements

Commonly used alloying elements and their effects are listed in the table given below.

Alloying Elements	Effect on the Properties
Chromium	Increases Resistance to corrosion and oxidation. Increases hardenability and wear resistance. Increases high temperature strength.
Nickel	Increases hardenability. Improves toughness. Increases impact strength at low temperatures.
Molybdenum	Increases hardenability, high temperature hardness, and wear resistance. Enhances the effects of other alloying elements. Eliminate temper brittleness in steels. Increases high temperature strength.
Manganese	Increases hardenability. Combines with sulfur to reduce its adverse effects.
Vanadium	Increases hardenability, high temperature hardness, and wear resistance. Improves fatigue resistance.
Titanium	Strongest carbide former. Added to stainless steel to prevent precipitation of chromium carbide.
Silicon	Removes oxygen in steel making. Improves toughness. Increases hardness ability
Boron	Increases hardenability. Produces fine grain size.
Aluminum	Forms nitride in nitriding steels. Produces fine grain size in casting. Removes oxygen in steel melting.
Cobalt	Increases heat and wear resistance.
Tungsten	Increases hardness at elevated temperatures. Refines grain size.

【H】 Ceramic lined pipe

Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.

【H】 Cast basalt lined steel pipe

Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.

【H】 Ceramic Tile Lined Pipes

Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.

【H】 Rare earth alloy wear-resistant pipe

The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.

【H】 Tubes Erosion Shields

Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.

【H】 ASTM A213 T91 Alloy Tube

The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.

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%

ASTM A519 Steel Pipe

Size range(mm)

Quality and Testing:

What is ASTM A519?

Scope

Reference documents

Related ASTM A519 Steel Pipe

Features Specifications

Chemical composition (%) of ASTM A519

Mechanical Properties of ASTM A519

What is the strength of ASTM A519?

ASTM A519 seamless carbon steel precision mechanical tubing

Mechanical Properties of ASTM A519

Seamless tube processing

Variable wall thicknesses

Drilling / stamping / lasering

Peeling / roller burnishing

Cold forming

Cutting

Beveling

Deburring

Thread rolling / threading

Partial hardening

Turning / milling / grinding

Reducing / expanding

Application

What requirements should alloy steel pipe application meet

The biggest advantages of alloy steel pipe

Specification, standard and identification of alloy steel pipes

Industries We Serve

Inspection

PMI

Size measurement

Seamless pipes with compound bevels as per ASME B16-25 And ASTM A333

Delivery

Steel pipe delivery status(condition)

Condition on delivery of steel pipe

Packing

Placing steel pipes into containers

Alloying Elements

ASTM A53 Steel Pipe

ASTM A179 Tubes