ASTM A335 P12 Alloy Steel Seamless Tube for Boiler/Heat Exchanger/Condenser

• Customization: Available
• After-sales Service: Supplied
• Warranty: 30 Years
• Model NO.: seamless/welded
• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Varnishing
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Applicaiton: Electric/Nuclear Power
• Applicaiton2: Oil and Gas Exploitation
• Applicaiton3: Oil Refining
• Applicaiton4: Chemical&Fine Chemical Industry
• Applicaiton5: Coal Chemical Industry
• Applicaiton6: Offshore Engineering&Shipbuilding
• Applicaiton7: Seawater Desalination&Water Treatment
• Applicaiton8: Natural Gas
• Applicaiton9: Instrumentation Tubing
• Applicaiton10: Heat Exchanger/Condenser/Heat Transfer/Rradiator
• Applicaiton11: Chemical Fertilizer/Fibre
• Applicaiton12: Sanitary Tube
• Applicaiton13: Aviation&Aerospace
• Applicaiton14: Oilfield
• Applicaiton15: Tanker
• Transport Package: Plywood Case, Bundled with Plastic Bags
• Specification: OD 17.2-168.3mm
• Trademark: EZS
• Origin: China
• HS Code: 73043190
• Production Capacity: 200000 Tons/Year

Product Description

Product Description

Alloy Steel Seamless Pipe ,ASTM A335 P1, P5 ,P9, P11, P12, P22, P91 & T5 ,T9, T11 ,T22, T91

 

ASTM A335 Alloy Steel Seamless Pipes Alloy Steel contains substantial quantities of elements other than carbon like chromium, silicon, nickel, manganese, molybdenum, tungsten, vanadium as well as limited amounts of other commonly accepted elements like sulphur, manganese, silicon & phosphorous. Addition of these alloying elements is usually done for purpose of increasing hardness, strength as well as chemical resistance of the end product. ASTM A335 GR P5 | GR P9 | GR P11 | GR P22 | GR P91 Alloy Steel Seamless Pipes (IBR APPROVED & NACE APPROVED) Alloy Steel Seamless Pipes (IBR) offered by us is made of alloy steel and feature exceptional performance properties. These are developed for energy-related applications involving oil & gas drilling and therefore are subjected to stresses in machine parts. Further, Alloy Steel Tubes are also used in domestic, professional or industrial areas. ASTM A335 PIPES | ASTM A335 GR P5 PIPES | ASTM A335 GR P9 PIPES | ASTM A335 GR P11 PIPES | ASTM A335 GR P22 PIPES | ASTM A335 GR P91 PIPES Size Range: 1/8" - 26" Schedules: 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH

 

Alloy Steel Seamless Pipes (ASME SA335 Grade P5)
Alloy Steel Seamless Pipes (ASME SA335 Grade P5) offered by us are made available in ASME SA335 as well as P1, P5, P9, P11, P12, P91 grades. Our expertise lies in offering these in different sizes & schedules, with IBR & latest edition NACE MR 0175 reports

ASME Alloy Steel Seamless Tubes / Pipes (SA335 Grade P9)
ASME Alloy Steel Seamless Tubes / Pipes (SA335 Grade P9) manufactured, supplied and exported by us are used for various industrial applications. Our specialization in offering precision engineered alloy steels allow us to deliver these for various engineering applications in various grades like A-387 GR. P1, P5, P9, P11, P12, P22, P91, ASTM A-335 and others

Alloy Steel Pipes (ASTM A335 P11)
Alloy Steel Pipes (ASTM A335 P11) offered by us are made as per IBR standards and are used mainly for boiler operations. We source these seamless pipes in varied size range. Further, we can also get these customized as per boiler piping requirements. For ensuring in them optimum quality standards, we source these from quality manufacturers. We also offer clients of having their own mark on them.

Alloy Steel Pipes (ASTM A335 P12)
Alloy Steel Pipes (ASTM A335 P12) offered by us are available with ASTM A335 P12 standard and finds application in industries like Petrochemicals, Refineries, Fertilizers, Pharmaceuticals and others. We can source these seamless pipes in size range of up to 26 inches.

Alloy Seamless Pipes (ASTM A335 Grade P91 NACE)
Alloy Seamless Pipes (ASTM A335 Grade P91 NACE) offered by us are made available in ASTM A335 Grades. Made as per IBR standards, these are mainly used in boiler operations. Further, our expertise lies in offering these pipes in various size range as well as in customized parameters as per boiler piping requirements. Sourced from quality conscious manufacturers, we also offer our clients the option of adding their own mark on them.

Alloy Steel Tubes (ASME SA213 Grade T11)
Alloy Steel Tubes (ASME SA213 Grade T11) manufactured and supplied by us are of ASME SA213 Grade. Our expertise lies in offering these in various sizes as well as other specifications as per the required demands. These Alloy Steel Tubes find usage mainly in different industrial applications.

Heat Treatement Requirement

 

	P5, P9, P11, and P22
Grade	Heat Treatment Type	Normalizing Temperature Range F [C]	Subcritical Annealing or Tempering  Temperature Range F [C]
P5 (b,c)	Full or Isothermal Anneal
	Normalize and Temper	*****	1250 [675]
	Subcritical Anneal (P5c only)	*****	1325 - 1375 [715 - 745]
P9	Full or Isothermal Anneal
	Normalize and Temper	*****	1250 [675]
P11	Full or Isothermal Anneal
	Normalize and Temper	*****	1200 [650]
P22	Full or Isothermal Anneal
	Normalize and Temper	*****	1250 [675]
P91	Normalize and Temper	1900-1975 [1040 - 1080]	1350-1470 [730 - 800]
	Quench and Temper	1900-1975 [1040 - 1080]	1350-1470 [730 - 800]

 

Chemical Requirements

 

		Grade	P-5	P-9	P-11	P-22	P-91	P-91 shall also include the following:
Element		UNS Designation	K41545	S50400	K11597	K21590	K91560
	Carbon		0.15 max	0.15 max	0.05 - 0.15	0.05 - 0.15	0.08 - 0.12	V at 0.18 - 0.25
	Manganese		0.30 - 0.60	0.30 - 0.60	0.30 - 0.60	0.30 - 0.60	0.30 - 0.60	N at 0.030 - 0.070
	Phosphorous, max		0.025	0.025	0.025	0.025	0.020	Ni at 0.40 max
	Sulfur, max		0.025	0.025	0.025	0.025	0.010	Al at 0.02 max
	Silicon		0.50 max	0.25 - 1.00	0.50 - 1.00	0.50 max	0.20 -0.50	Cb at 0.06 - 0.10
	Chromium		4.00 - 6.00	8.00 - 10.00	1.00 - 1.50	1.90 - 2.60	8.00 - 9.50	Ti at 0.01 max
	Molybdenum		0.45 -0.65	0.90 - 1.10	0.44 - 0.65	0.87 - 1.13	0.85 - 1.05	Zr at 0.01 max

 

 

 

 

 

 

Tensile Requirements

 

		Seamless
		P-5	P-9	P-11	P-22	P-91	P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC].
Tensile Strength, min., psi
	ksi	60	60	60	60	85
	MPa	415	415	415	415	585
Yield Strength, min., psi
	ksi	30	30	30	30	60
	MPa	205	205	205	205	415

 

ermissible Variation in Wall Thickness

 

NPS [DN] Designator			Tolerance, % from Specified
				Over			Under
1/8 to 2 1/2 [6 to 65] incl., all t/D ratios				20.0%			12.5%
Above 2 1/2  [65], t/D < or = 5%				22.5%			12.5%
Above 2 1/2  [65], t/D > 5%				15.0%			12.5%
(t = Specified Wall Thickness; D = Specified Outside Diameter)

 

Elongation Requirements

 

Calculated Minimum Elongation Values
Elongation in 2 in. or 50 mm, min %
Wall Thickness		P5, P9, P11, P22				P91
in.	mm	Longitudinal		Transverse		Longitudinal
5/16 (0.312)	8		30	20		20
9/32 (0.281)	7.2		28	19		19
1/4 (0.250)	6.4		27	18		18
7/32 (0.219)	5.6		26			17
3/16 (0.188)	4.8		24			16
5/32 (0.156)	4		22			15
7/8 (0.125)	3.2		21			14
3/32 (0.094)	2.4		20			13
1/18 (0.062)	1.6		18			12

 

 

 

 

 

 

 

 

 

Permissible Variations in Outside Diameter

Outside Diameter at any point shall not vary from standard specified more than:

NPS [DN] Designator		Over				Under
		in.		mm		in.		mm
1/8 to 1 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
Over 12 [300]		+/- 1% of the specified outside diameter

 

 

 

 

 

 

 

 

 

Mechanical Tests Specified
Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test
For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot.  For small lots, at least one pipe shall be tested.
For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.
Notes for Hardness Test:	P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC].
Notes for Bend Test:	For pipe whose diameter exceeds NPS 25 and whose diameter to wall thickness ratio is 7.0 or less shall be subjected to the bend test instead of the flattening test.
	Other pipe whose diameter equals or exceeds NPS 10 may be given the bend test in place of the flattening test subject to the approval of the purchaser.
	The bend test specimens shall be bent at room temperature through 180 without cracking on the outside of the bent portion.
	The inside diameter of the bend shall be 1 inch [25 mm].
Hydrostatic Test	Each length of pipe shall be Hydro tested, at option of manufacture nondestructive electric testing can be used.