Best Price on ASTM A199 T5/T22 Seamless Cold-Drawn Intermediate Alloy Steel Heat-Exchanger and Condenser Pipe

Our pursuit and enterprise goal is to "Always satisfy our customer requirements". We keep on to establish and style and design outstanding top quality goods for both our outdated and new prospects and realize a win-win prospect for our clientele likewise as us for Best Price on ASTM A199 T5/T22 Seamless Cold-Drawn Intermediate Alloy Steel Heat-Exchanger and Condenser Pipe, In addition, we would properly guideline the shoppers about the application techniques to adopt our products and solutions as well as the way to select appropriate materials. Our pursuit and enterprise goal is to "Always satisfy our customer requirements". We keep on to establish and style and design outstanding top quality goods for both our outdated and new prospects and realize a win-win prospect for our clientele likewise as us for China Alloy Tube and Black Steel Tube, We've got more than 10 years experience of production and export business. We always develop and design kinds of novel products and solutions to meet the market demand and help the guests continuously by updating our solutions. We've been specialized manufacturer and exporter in China. Wherever you are, please join us, and together we are going to shape a bright future in your business field!

Overview

Application

It is mainly used to make high-quality alloy steel pipe for high pressure boiler pipe, heat exchanger pipe and super heat pipe

Main Grade

Grade of high-quality Alloy steel: T2,T12,T11,T22, T91, T92 etc.

Chemical Component

Steel Grade	Chemical Composition%
	C	Si	Mn	P, S Max	Cr	Mo	Ni Max	V	Al Max	W	B
T2	0.10~0.20	0.10~0.30	0.30~0.61	0.025	0.50~0.81	0.44~0.65	–	–	–	–	–
T11	0.05~0.15	0.50~1.00	0.30~0.60	0.025	1.00~1.50	0.44~0.65	–	–	–	–	–
T12	0.05~0.15	Max 0.5	0.30~0.61	0.025	0.80~1.25	0.44~0.65	–	–	–	–	–
T22	0.05~0.15	Max 0.5	0.30~0.60	0.025	1.90~2.60	0.87~1.13	–	–	–	–	–
T91	0.07~0.14	0.20~0.50	0.30~0.60	0.02	8.0~9.5	0.85~1.05	0.4	0.18~0.25	0.015	–	–
T92	0.07~0.13	Max 0.5	0.30~0.60	0.02	8.5~9.5	0.30~0.60	0.4	0.15~0.25	0.015	1.50~2.00	0.001~0.006

For T91 other than above also includes Nickel 0.4, Va 0.18-0.25, Ni 0.06-0.10, Ni 0.03-0.07, Al 0.02, Ti 0.01, Zr 0.01. A Maximum, unless range or minimum is indicated. Where ellipses (...) appear in this table, there is no requirement, and analysis for the element need not be determined or reported. B It is permissible to order T2 and T12 with a sulfur content of 0.045 max. C Alternatively, in lieu of this ratio minimum, the material shall have a minimum hardness of 275 HV in the hardened condition, defined as after austenitizing and cooling to room temperature but prior to tempering. Hardness testing shall be performed at mid-thickness of the product. Hardness test frequency shall be two samples of product per heat treatment lot and the hardness testing results shall be reported on the material test report.

Mechanical Property

Steel Grade	Mechanical Properties
	T. S	Y. P	Elongation	Hardness
T2	≥ 415MPa	≥ 205MPa	≥ 30%	163HBW(85HRB)
T11	≥ 415MPa	≥ 205MPa	≥ 30%	163HBW(85HRB)
T12	≥ 415MPa	≥ 220MPa	≥ 30%	163HBW(85HRB)
T22	≥ 415MPa	≥ 205MPa	≥ 30%	163HBW(85HRB)
T91	≥ 585MPa	≥ 415MPa	≥ 20%	250HBW(25HRB)
T92	≥ 620MPa	≥ 440MPa	≥ 20%	250HBW(25HRB)

 

Tolerance

Permitted Variations in  Wall thickness

Wallthickess %
outside diameter in. mm	0.095 2.4 and under	over0.095 to 0.15 2.4-3.8 incl.	over 0.15 to 0.18 3.8-4.6 incl	over 0.18 to 4.6
over under over under over under over under
seamless, hot finished
4inch and under                   40   0     35    0     33    0    28   0
over 4 inch     ..     ..            35    0     33    0    28   0
seamless, cold finished
		over  under
11/2 and under		20     0
over 11/2		22     0

The permitted variations in wall thickness apply only to tube , except internal-upset tubes, as rolled or cold finished and before swaging,expanding ,bending,polishing,or other fabricating operations Permitted Variations in  Outside Diameter

outside diameter （mm)	Pemitted Variation( mm)
hot finished seamless tube	over	under
4" (100mm)and under	0.4	0.8
4-71/2"(100-200mm）	0.4	1.2
71/2-9“（200-225）	0.4	1.6
Welded tubes and cold finished seamless tubes
under1"(25mm)	0.1	0.11
1-11/2"(25-40mm)	0.15	0.15
11/2-2"(40-50mm)	0.2	0.2
2-21/2"(50-65mm)	0.25	0.25
21/2-3"(65-75mm)	0.3	0.3
3-4"(75-100mm)	0.38	0.38
4-71/2"(100-200mm）	0.38	0.64
71/2-9“（200-225）	0.38	1.14

Test Requirement

Hydraustatic Test: The Steel Pipe Should Be Tested Hydraulically One By One. The Maximum Test Pressure Is 20 MPa. Under The Test Pressure, The Stabilization Time Should Be Not Less Than 10 S, And The Steel Pipe Should Not Leak. Or The Hydraulic Test Can Be Replaced By Eddy Current Testing Or Magnetic Flux Leakage Testing. Nondestructive Test： Pipes That Require More Inspection Should Be Ultrasonically Inspected One By One. After The Negotiation Requires The Consent Of The Party And Is Specified In The Contract, Other Non-Destructive Testing Can Be Added. Flattening Test： Tubes With An Outer Diameter Greater Than 22 Mm Shall Be Subjected To A Flattening Test. No Visible Delamination, White Spots, Or Impurities Should Occur During The Entire Experiment. Hardness Test: For Pipe Of Grades P91, P92, P122, And P911, Brinell, Vickers, Or Rockwell Hardness Tests Shall Be Made On A Specimen From Each Lot  

Product Detail

Boiler Tube

GB/T5310-2017

ASME SA-106/SA-106M-2015

ASTMA210(A210M)-2012

ASME SA-213/SA-213M

ASTM A335/A335M-2018

Our pursuit and enterprise goal is to "Always satisfy our customer requirements". We keep on to establish and style and design outstanding top quality goods for both our outdated and new prospects and realize a win-win prospect for our clientele likewise as us for Best Price on ASTM A199 T5/T22 Seamless Cold-Drawn Intermediate Alloy Steel Heat-Exchanger and Condenser Pipe, In addition, we would properly guideline the shoppers about the application techniques to adopt our products and solutions as well as the way to select appropriate materials. Best Price on China Alloy Tube and Black Steel Tube, We've got more than 10 years experience of production and export business. We always develop and design kinds of novel products and solutions to meet the market demand and help the guests continuously by updating our solutions. We've been specialized manufacturer and exporter in China. Wherever you are, please join us, and together we are going to shape a bright future in your business field!