Seamless Alloy Steel Boiler, Superheater and Heat-Exchanger Tubes for High-Temperature Services ASTM A335/A213 T11/P11

• Customization: Available
• After-sales Service: Free
• Warranty: 1 Year
• Model NO.: ASTM A335/A209/A210/A213
• Type: Seamless
• Technique: Cold Drawn
• Material: Alloy Steel
• Surface Treatment: Black
• Usage: Pipeline Transport, Boiler Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Special Purpose
• Section Shape: Round
• Shipment Terms: EXW/Fob/CFR/CIF
• Standard: ASTM A335/A209/A210/A213
• Length: 5.5-5.8meter
• Customized: Yes
• Transport Package: Bundle
• Specification: OD 3in under
• Trademark: Bluesky-pipe
• Origin: Ningde
• HS Code: 7304511000
• Production Capacity: 50000 Ton/Year

Product Description

Product Description

The ASTM A335 standard, developed by the esteemed American Society for Testing and Materials (ASTM), serves as a premier guideline for assessing the robustness and resilience of alloy steel pipes in environments characterized by high temperatures and pressures. Emphasizing rigorous evaluation methods, this standard encompasses a comprehensive range of testing techniques, including room temperature tensile testing, high temperature tensile testing, high temperature compression testing, and high temperature bending testing, ensuring that each alloy pipe meets the demanding requirements of safety and strength.
Application Area
Renowned for its extensive application in high-temperature and high-pressure industries, the ASTM A335 standard is a cornerstone in the engineering and fabrication of pipeline equipment across sectors such as petroleum, chemical, and power. By meticulously adhering to these standards, manufacturers can guarantee that alloy steel pipes possess unmatched strength and safety performance, even in the most challenging high-temperature environments, thus safeguarding critical infrastructure and operations.
Specific Products and Their Uses
Under the renowned ASTM A335 standard, specific products like the P11 alloy seamless tubes have become indispensable in high-pressure boiler applications. These tubes are expertly utilized for heating surfaces, economizers, headers, superheaters, reheaters, and petrochemical industry pipes. Their reliability and performance make them the preferred choice across diverse fields such as petroleum, chemical, power, and aerospace, where high-pressure boiler equipment is prevalent.

   ASTM A213 steel pipes are mainly used for equipment such as boilers, superheaters, and heat exchangers, and are suitable for high-temperature and high-pressure working environments
  Specific Use: 
  Boiler and Superheater: ASTM A213 steel pipes are suitable for boilers and superheaters, especially those components that need to withstand high temperature and high pressure environments. These steel pipes are commonly used for heating surface tubes, economizers, superheaters, and reheaters in high-pressure boilers (with working pressures generally above 9.8 MPa and working temperatures between 450 ºC and 650 ºC)
  Heat exchanger: ASTM A213 steel pipes are also used in heat exchangers, especially in environments that require high temperature and corrosion resistance. These steel pipes have good high temperature resistance and corrosion resistance, and can adapt to harsh working environments in heat exchangers
  The chemical composition and mechanical properties of ASTM A213 steel pipes make them excellent in high temperature and high pressure environments. Common grades such as T11, T12, T22, etc. have chemical compositions including elements such as carbon, silicon, manganese, as well as alloying elements such as chromium and molybdenum. These elements endow steel pipes with excellent high temperature resistance and corrosion resistance. For example, chromium element improves the oxidation resistance and corrosion resistance of steel pipes, while molybdenum element enhances their thermal strength

 

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Product Parameters

ASTM A335/A213 Chemical Requirements
Grade	UNS	Composition, %
	Designation	C	Mn	P	S	Si	Cr	Mo
P11/T11	K11597	0.05-0.15	0.30-0.60	0.025	0.025	0.50-1.00	1.00-1.50	0.44-0.65
P12/T12	K11562	0.05-0.15	0.30-0.61	0.025	0.025	0.50 max	0.80-1.25	0.44-0.65
P15	K11578	0.05-0.15	0.30-0.60	0.025	0.025	1.15-1.65	--	0.44-0.65
P21/T21	K31545	0.05-0.15	0.30-0.60	0.025	0.025	0.50 max	2.65-3.35	0.80-1.06
P22/T22	K21590	0.05-0.15	0.30-0.60	0.025	0.025	0.50 max	1.90-2.60	0.87-1.13
P23/T23	K41650	0.04-0.10	0.10-0.60	0.030 max	0.010 max	0.50 max	1.90-2.60	0.05-0.30
P36/T36	K21001	0.10-0.17	0.80-1.20	0.030 max	0.025 max	0.25-0.50	0.30 max	0.25-0.50
P91/T91	K91560	0.08-0.12	0.30-0.60	0.020	0.010	0.20-0.50	8.00-9.50	0.85-1.05
P92/T92	K92460	0.07-0.13	0.30-0.60	0.020	0.010	0.50 max	8.50-9.50	0.30-0.60
P122/T122	K92930	0.07-0.14	0.70 max	0.020	0.010	0.50 max	10.00-11.50	0.25-0.60
P911/T911	K91061	0.09-0.13	0.30-0.60	0.020 max	0.010 max	0.10-0.50	8.5-9.5	0.90-1.10

ASTM A335/A213 Tensile Requirements
Grade
	P1,P2	P12	P23	P91	P92,P911,P36 Class1	P122	P36  Class 2	All Others
Tensile strength,min:ksi[Mpa]	55[380]	60[415]	74[510]	85[585]	90[620]	90[620]	95.5[660]	60[415]
Yield strength,min:ksi[Mpa]	30[205]	32[220]	58[400]	60[415]	64[440]	58[400]	66.5[460]	30[205]

Hardness Requirements
Grade	Hardness. max
P91,P92,P122,P36	250 HB/265 HV [25 HRC]

Calculated Minimum Elongation Values
Wall Thickness		Elongation in 2 in. or 50 mm, min, %
		All grades except P23, P36, P91, P92, P122, and P911		P23, P91, P92, P122, and P911	P36
in.	mm	Longitudina	Transverse	Longitudina	Longitudina
5⁄16 (0.312)	8	30	20	20	15
9⁄32 (0.281)	7.2	28	19	19	14
1⁄4 (0.250)	6.4	27	18	18	13
7⁄32 (0.219)	5.6	26	--	17	12
3⁄16 (0.188)	4.8	24	--	16	11
5⁄32 (0.156)	4	22	--	15	10
1⁄8 (0.125)	3.2	21	--	14	9
3⁄32 (0.094)	2.4	20	--	13	8
1⁄16 (0.062)	1.6	18	--	12	7

Permissible Variations in Outside Diameter
NPS [DN] Designator	Over
	in.	mm	in.	mm
1⁄8 to1 1⁄2 [6 to 40], incl.	1⁄64 (0.015)	0.40	1⁄64 (0.015)	0.40
Over 1 1⁄2 to 4 [40 to 100], incl.	1⁄32 (0.031)	0.79	1⁄32 (0.031)	0.79
Over 4 to 8 [100 to 200], incl.	1⁄16 (0.062)	1.59	1⁄32 (0.031)	0.79
Over 8 to 12 [200 to 300], incl.	3⁄32 (0.093)	2.38	1⁄32 (0.031)	0.79

Permitted Variations in Wall Thickness
NPS [DN] Designator	Tolerance, % from Specified
	Over	Under
1⁄8 to 21⁄2 [6 to 65] incl., all t/D ratios	20.0	12.5
Above 21⁄2 [65], t/D ≤5 %	22.5	12.5
Above 21⁄2 [65], t/D > 5 %	15.0	12.5

Test Method Information for Certification and Marking
Hydrostatic	Nondestructive	Marking
YES	NO	Test Pressure
NO	YES	NDE
NO	NO	NH
YES	YES	Test Pressure/NDE

 

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FAQ

Q: Are you trading company or manufacturer?
A: We are professional manufacturer for steel pipes,and our company also is a very professional and technical foreign trade company for steel products. We have more export experience with competitive price and best after-sales service. Apart from this,we can provide a wide range of steel products to meet the requirement of customer.

Q:Will you delivery the goods on time?
A: Yes,we promise to provide best quality products and delivery on time no matter if the price change lot or not. Honesty is our company's tenet.

Q: Do you provide samples ? is it free or extra?
A: The sample could can provide for customer with free,but the freight will be covered by customer account. The sample freight will be returned to customer account after we cooperate.

Q: How can I get your quotation as soon as possible?
A: The email and fax will be checked within 24 hours,meanwhile,Wechat and WhatsApp will be online in 24 hours. Please send us your requirement and order information,specification(Steel grade,size,quantity,destination port),we will work out a best price soon.

Q: Do you have any certifications?
A: Yes,that's what we guarantee to our clients. we have IS09000,IATF16949 certinicate,ISO 14001 certificates etc.Our products are of high quality and we have professional engineers and development team.

Q: What is your terms of payment?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipmenit or paid against copy of B/L within 5 working days. 100% Irrevocable L/C at sight is favorable payment term as well.

Q: Do you accept the third party inspection?
A: Yes absolutely we accept.