ASTM A213/ASME SA213 T22 Seamless Alloy-Steel Boiler Tubes

ASTM A213/ASME SA213 T22 Seamless Alloy-Steel Boiler Tubes

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Payment Type:	L/C,T/T,D/P
Incoterm:	FOB,CFR,EXW,CIF
Transportation:	Ocean,Land,Express
Port:	Tianjin,Qingdao,Shanghai

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Product Description

Product Attributes

Model No.: ASTM A213 T22

Standard: Astm, Gb, Bs, Din

Material: Cr-Mo Alloy, 10#-45#, A53-A369, Mn-V Alloy, Crni Alloy

Section Shape: Round

Place Of Origin: China

Application: Fluid Pipe, Boiler Pipe, Structure Pipe

Production Process: Hot Rolled

Certification: Ce

Special Tube: Thick Wall Pipe

Whether Alloy: Is Alloy

Tolerance: ±1%

Category: Seamless Steel Pipe

Processing Service: Cutting, Punching, Decoiling, Bending

Packaging & Delivery

Selling Units	:	Ton
Package Type	:	Standard marine packaging, or as required by the customer
Picture Example	:

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Product Description

ASTM A213 T22 Seamless Ferritic Alloy-Steel Boiler Tubes

Standard: ASTM A213/ASME SA213

Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes

ASTM A213 T22 Steel

A213 T22: "A" is the mark of ASTM steel material. "213" refers to the code sequence number, "T22" refers to the steel grade classification, "t" refers to small diameter pipe, equivalent to 12CR2MOG small diameter pipe in China.)

A213 T22 is a chrome molybdenum high temperature ferritic steel for boiler and superheater with ASTM A-213 / A-213m standard steel grade of 2.25Cr-lMo. It was transplanted to GB5310 in 1985 and named 12CR2MOG. Other countries also have similar steel grades, such as 10CrMo910 in Federal Germany and stba24 in Japan. In the CR -1Mo steel series, its thermal strength performance comparison draft; at the same temperature (temperature ≤ 580 ℃), its creep fracture strength and allowable stress are even higher than that of 9Cr - 1Mo steel; moreover, it has good processability, weldability and durable plasticity. Therefore, it has been widely used in the harsh working environment, such as various heating pipes and high-pressure vessels in thermal power, nuclear power and some hydrogen generating equipment.

ASTM A213 T22 Seamless Ferritic Alloy-Steel Boiler Tubes Quick Details

Manufacture:Seamless process ,Hot-finished or Cold-finished

Wall thickness(WT): 0.9 mm——12.7 mm.

Outer diameter (OD): 12.7 mm——127 mm

Length: 6M or specified length as required.

Ends: Plain End, Beveled End, Treaded

Additional Info

Port of Shipment: Tianjin, China

Payment Terms: Contact us

Delivery: 15-30 days after payment

Surface: Tubes will be varnished (Outside only) to prevent rust.

Marking: Standard + Steel Grade + Size + Heat No + Lot No

Package: Bundles (hexagonal), Wooden Boxes, Crates (steel/wooden) or as required

Specification of ASTM A213 T22 Boiler Tubes

OD (mm)

Wall Thickness(mm)

2.5

3.5

4.5

6.5-7

7.5-8

8.5-9

9.5-10

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

●

Materials and Manufacture

ASTM A213 T22 Seamless Ferritic Alloy-Steel Boiler Tubes are made by the seamless process and shall be either hot finished or cold finished, as specified.

Grain Size

Grain size shall be as given in Table 1,

Grain size determinations, shall be made on one end of one finished tube from each lot.

Heat Treatment of ASTM A213 T22

TABLE 1 Heat Treatment and Grain Size Requirements

Grade	UNS Number	Heat Treat Type	Austenitizing/ Solutioning Temperature, min or range ºF [ºC]	Cooling Media	Subcritical Annealing or Tempering Temperature, min or range ºF [ºC]	ASTM Grain S
Ferritic Alloy Steels
T22	K21590	full or isothermal anneal	…	…	…	…
T22	K21590	normalize and temper		…	1250 [675]	…

Note: 1. Heat treatment shall be carried out separately and in addition to heating for hot forming.
2. ASTM Grain Size No. listed, or coarser, unless otherwise indicated.

Chemical Composition of ASTM A213 T22 Seamless Boiler Tubes

Grade	Chemical Composition(%)
Grade	C	Mn	P	S	Si	Cr	Mo
A213 T22	0.05-0.15	0.30-0.60	≤0.025	≤0.025	≤0.50	1.90-2.60	0.87-1.13

Mechanical Properties of ASTM A213 T22 Seamless Boiler Tubes

Grade	Tensile Strength(MPa)	Yield Strength(MPa)	Elongation(%)	Hardness(HB)
A213 T22	≥415	≥205	30	≤163

Mechanical property requirements do not apply to tubing smaller than 1 ⁄ 8in. [3.2 mm] in inside diameter or thinner than 0.015 in. [0.4 mm] in thickness.

The dimensional tolerances of ASTM A213 Seamless Boiler Tubes
Tolerances of Wall Thickness

Wall Thickness, %
Outside Diameter in. [mm]	0.095 [2.4] and Under		Over 0.095 to 0.150 [2.4 to 3.8], incl		Over 0.150 to 0.0180 [3.8 to 4.6], incl		Over 0.180 [4.6]
	Over	Under	Over	Under	Over	Under	Over	Under
Seamless, Hot-Finished Tubes
4 [100] and under	40	0	35	0	33	0	28	0
Over 4 [100]	....	....	35	0	33	0	28	0
Seamless, Cold-Finished Tubes
			Over	Under
1 1 ⁄ 2 [38.1] and under			20	0
Over 1 1 ⁄ 2 [38.1]			22	0

Tolerances of Outside Diameter

Pecified Outside Diameter,in. [mm]	Permitted Variations, in. [mm]
Pecified Outside Diameter,in. [mm]	Over	Under
Hot-Finished Seamless Tubes
4 [100] or under	1 ⁄ 64 [0.4]	1 ⁄ 32 [0.8]
Over 4 to 7 1 ⁄ 2 [100 to 200], incl	1 ⁄ 64 [0.4]	3 ⁄ 64 [1.2]
Over 7 1 ⁄ 2 to 9 [200 to 225], incl	1 ⁄ 64 [0.4]	1 ⁄ 16 [1.6]
Cold-Finished Seamless Tubes
Under 1 [25]	0.004 [0.1]	0.004 [0.11]
1 to 1 1 ⁄ 2 [25 to 40], incl	0.006 [0.15]	0.006 [0.15]
Over 1 1 ⁄ 2 to 2 [40 to 50], excl	0.008 [0.2]	0.008 [0.2]
2 to 2 1 ⁄ 2 [50 to 65], excl	0.010 [0.25]	0.010 [0.25]
2 1 ⁄ 2 to 3 [65 to 75], excl	0.012 [0.3]	0.012 [0.3]
3 to 4 [75 to 100], incl	0.015 [0.38]	0.015 [0.38]
Over 4 to 7 1 ⁄ 2 [100 to 200], incl	0.015 [0.38]	0.025 [0.64]
Over 7 1 ⁄ 2 to 9 [200 to 225], incl	0.015 [0.38]	0.045 [1.14]

Tolerances of Length

Method of Manufacture	Specified Outside Diameter, in.[mm]	Cut Length, in. [mm]
Method of Manufacture	Specified Outside Diameter, in.[mm]	Over	Under
Seamless, hot-finished	All sizes	3 ⁄ 16 [5]	0 [0]
Seamless, cold-finished	Under 2 [50.8]	1 ⁄ 8 [3]	0 [0]
	2 [50.8] or over	3 ⁄ 16 [5]	0 [0]
	2 [50.8] or over	3 ⁄ 16 [5]	0 [0]

Hydrostatic or Nondestructive Electric Test
Each tube will be subjected to the nondestructive electric test or the hydrostatic test.

Tests
(1)Tension test——One tension test shall be made on a specimen from one tube for lots of not more than 50 tubes. Tension tests shall be made on specimens from two tubes for lots of more than 50 tubes.
(2)Hardness Requirements—— Brinell, Vickers, or Rockwell hardness tests shall be made on specimens from two tubes from each lot.
(3)Flattening Test——One flattening test shall be made on specimens from each end of one finished tube.
(4)Flaring Test——One flaring test shall be made on specimens from each end of one finished tube.

Surface Condition
Ferritic alloy cold-finished steel tubes are free of scale and suitable for inspection.
Ferritic alloy hot-finished steel tubes are free of loose scale and suitable for inspection.
Note: Material furnished under ASTM A213 conform to the applicable requirements of the current edition of Specification A1016/A1016M

Application:

Allowable operating temperature: it is mainly used for superheater with wall temperature ≤ 580 ° C and steam pipe and header with wall temperature ≤ 540 ° C of large capacity power station boiler such as 300. 600MW. This kind of steel has been widely used in the United States, Japan and Europe. It has a long history in power plant operation and is a mature steel with stable running and good process performance.

ASTM A213 T22 Seamless Boiler Tubes Marking
In addition to the marking prescribed in Specification ASTM A1016/A1016M, the marking shall indicate whether the tube is hot-finished or cold-finished.

Photos of ASTM A213 T22 Alloy-Steel Boiler Tubes

Selection of A-213 T22 welding material

The welding methods of manual welding, gas shielded tungsten electrode or melting electrode automatic welding and submerged arc automatic welding can be adopted. E6015-b3 (heat 407) welding rod can be used for manual arc welding, and EB3 / sj110 welding wire can be used for automatic welding. T22 steel has quenching and cold crack direction. It is required to preheat 200 ~ 350 ℃ for thick wall pipe before welding, and conduct post welding heat treatment for the pipe with wall thickness more than 8mm.

Bending of A-213 T22

It is suitable for all kinds of bending processes. After cold bending, stress relief treatment is required; when the temperature of hot bending exceeds the tempering temperature, normalizing and heat treatment shall be carried out again.

Ordering Information
It shall be the responsibility of the purchaser to specify all requirements that are necessary for products.
(1) Quantity (feet, metres, or number of lengths),
(2) Name of material (seamless tubes),
(3) Grade (T22),
(4) Condition (hot finished or cold finished),
(5) Size (outside diameter and minimum wall thickness, unless average wall thickness is specified),
(6) Length (specific or random),
(7) Hydrostatic Test or Nondestructive Electric Test,
(8) Increased sulfur

Picture of ASME SA213 T22 detail display