Alloy Steel Pipe for High-Temperature Service Applications ASTM A335

• Customization: Available
• After-sales Service: Free
• Warranty: 1 Year
• Model NO.: ASTM A335
• 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
• 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, a hallmark of resilience and durability, provides methods essential for assessing the strength of alloy steel pipes under extreme conditions of high temperature and pressure. Developed by the renowned American Society for Testing and Materials (ASTM), this standard includes a comprehensive suite of methods such as room temperature tensile testing, high temperature tensile testing, high temperature compression testing, and high temperature bending testing to ensure impeccable performance.
  Application area
The ASTM A335 standard is an indispensable tool in the creation of pipeline equipment within high-temperature and high-pressure sectors, including petroleum, chemical, and power industries. By adhering to this rigorous standard, manufacturers can guarantee that the alloy steel pipe material maintains optimal strength and safety performance, ensuring reliability in demanding high temperature environments.
  Specific products and their uses
Among the suite of products conforming to the ASTM A335 standard, items like P11 alloy seamless tubes stand out. These are primarily utilized in high-pressure boiler components such as heating surfaces, economizers, headers, superheaters, reheaters, and pipelines for the petrochemical industry. Their extensive application spans across critical sectors like petroleum, chemical, power, and aerospace, where they form the backbone of high-pressure boiler equipment.

 

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Product Parameters

Chemical Requirements
Grade	UNS	Composition, %
	Designation	C	Mn	P	S	Si	Cr	Mo
P11	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	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	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	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	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	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	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	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	K92930	0.07-0.14	0.70 max	0.020	0.010	0.50 max	10.00-11.50	0.25-0.60
P911	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

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.