Super Duplex Stainless Steel Pipe A790 - A790M

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Super Duplex Stainless Steel Pipe A790 - A790M

Tình trạng hàng : Stock warehouse in Viet Nam
Nguồn gốc xuất xứ : China/ Japan/ Korea/ Singapore, G7, Thailand
Bảo hành : 12 months
Địa điểm giao hàng : At the buyer's ware house
Thanh toán : TTA/LC
Ứng dụng sản phẩm : Gas LPG, Fire protection, Water supply, Oil and Gas
Lượt xem : 274

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Product: Pipes and Tubes Seel - ASTM A790 / SA790M
Duplex Stainless Steel Pipe ASTM A790 / SA790M
Super Duplex Stainless Steel Tube		Super Duplex Stainless Steel Pipe
Pipes		Tubes
Duplex Stainless Steel 22Cr		Duplex Stainless Steel 25Cr
UNS Designation
S31803		UNS S32550
S31200		UNS S32750
S31260		UNS S32760
S31500		S31803
S32003		S32101
S32202		S32205
S32304		S32506
S32520		S32550
S32707		S32750
S32760		S32808
S32900		S32906
S32950		S33207
S39274		S39277
AWS A5.9 Class ER2209		AWS A5.9 Class ER2209
AWS A5.9 Class ER2553
Class	Construction	Non-destructive Examination
ERW	Welded	None
W	Welded	Radiography or Ultrasonic
WX	Welded	Radiography
WU	Welded	Welded Ultrasonic
Seamless Pipe		Seamless Tube
SMLS - Pipe		SMLS - Tube
Electric resistance welding - Pipes		Electric resistance welding - Tube
ERW - Pipes		ERW - Tube
Seamless and Electric-Resistance-Welded - Pipe		Electric-Resistance-Welded Pipe and Tube
SMLS and Electric-Resistance-Welded - Pipe
Double Submerged Arc Welded Pipe		Double Submerged Arc Welded - Tube
DSAW - Pipe		DSAW - Tubes
Spiral Welded Pipes		Spiral Welded Tube
Spiral Submerged Arc Welded Pipes		Spiral Submerged Arc Welded Tube
SAW - Pipe		SAW - Tube
Spiral Sub-Merged Arc Welded Pipe		Spiral Sub-Merged Arc Welded Tube
SSAW - Pipe		SSAW -Tube
High Frequency Induction Welded Pipe		High Frequency Induction Welded Tube
HFI Welded - Pipe		HFI Welded - Tube
Electric Fusion Welded Pipes		Electric Fusion Welded Tube
EFW Welded - Pipe		EFW Welded - Tube
Longitudinally Submerged Arc Welded Pipe		Longitudinally Submerged Arc Welded Tube
LSAW - Pipe		LSAW - Tube
Uing and Oing forming Pipe		Uing and Oing forming Tube
UOE - Pipe		UOE - Tube
JCOE - Pipe		JCOE - Tube
J-ing - Pipe		J-ing - Tube
C-ing and O-ing - Pipe		C-ing and O-ing - tube
Anti-corrosion steel pipe		Anti-corrosion steel Tube
Oval pipe		Oval Tube
Square hollow section		Rectangular Hollow Sections
Hot dip galvanized square tube		Stainless Steel Square / Rectangular Tubes
Pressure Rating : Pipes and Tubes Seel - ASTM A790 / SA790
Schedule
SCH5	SCH10	SCH30	SCH STD
SCH40	SCH60	SCHXS	SCH80
SCH100	SCH100	SCH120	SCH140
SCH160	SCH XXS	Schedule 160	Schedule XXS
Schedule 5	Schedule 10	Schedule 20	Schedule 30
Schedule STD	Schedule 40	Schedule 60	Schedule XS
Schedule 80	Schedule 100	Schedule 120	Schedule 140
Schedule 160	Schedule XXS
Pressure Rating : Pipes and Tubes, Stainless Steel ASTM A790 / SA790M
SCH 5S	SCH 10S	SCH 30S	SCH STD
SCH 10S	SCH 60S	SCH XS	SCH 80S
SCH 100S	SCH 120S	SCH 140S	SCH 160S
SCH XXS	Schedule 160S	Schedule XXS
Schedule 5S	Schedule 10S	Schedule 20S	Schedule 30S
Schedule STD	Schedule 40	Schedule 60S	Schedule XS
Schedule 80S	Schedule 100S	Schedule 120S	Schedule 140S
Schedule 160S	Schedule XXS
Lined : Tubes - Pipe
Rubber-Lined	PTFE -Lined	polyurethane - Lined
Hot dip galvanized	Mạ kẽm nhúng nóng	Galvanized	ECTFE Coatings
PTFE Coating	PFA Coating	FEP Coating	ECTFE Lining
PTFE Lining	PTFE Polytetrafluoroethylene (PTFE)	PFA Lining	FEP Lining
PVDF Lining	PTFE MS Lined Pipes and Fittings	Black Coated	FBE Fusion Bonded Epoxy
FBE External Tape	FBE Internal Coating	2 Layer FBE + Rough Coating	Double Layer FBE
Dual Coat FBE Capabilities	Fusion Bonded Epoxy (FBE) Coating	Ceramic Epoxy Lining	Superior External Coating For Fittings
Fusion Bond Epoxy Coatings	3PE Epoxy coating	Fusion Bond Epoxy (FBE)	Ceramic Epoxy
PROTECTIVE FUSION	CERAMIC EPOXY LINED	3LPE THREE-LAYER POLYETHYLENE	3LPP THREE-LAYER
BONDED EPOXY (FBE)			POLYPROPYLENE
Ceramic-Lined Pipe and Fittings	Epoxy powder coating	polyethylene-lined	polyethylene lining
Small-Diameter Single-Layer Bonded Polyethylene-Coated		PLP-P1H (Single-Layer Bonded Polyethylene-Coated)
PLP-P2S (Polyethylene-Coated)		JDLP (PVC-Lined Steel)	Plastic-Lined
PFA Lining	Epoxy coating	Coating FBE epoxy powder coating	Epoxy PE Coating
with epoxy liquid coating meeting	Fusion Bond Epoxy Coated	Epoxy color coated	Polyethylene Coated
Hot-dipped Galvanized or Epoxy Coating		Plastic PE Coated	PP Lined Pipe
Fusion Bonded Epoxy (FBE) Coating	Fusion Powder Coating	Zinc Coatings	Polypropylene Lined Pipe
Polyvinylidene Fluoride Lined Pipe	PVDF Lined Pipe	PFA Lined Pipe	Ceramic Lined
Rubber Lined Pipe	Rubber Lined Pipe Surface Epoxy Resin Painted		Rubber Lined Pipe Mining Slurry Rubber Lined Pipeline
Wear Rubber Lined Pipe	SBR Rubber Lined Pipe Piping Pipeline	Rubber Lined Pipe Mining Slurry Rubber Lined Pipe Pipeline
Anti Corrosive Rubber Lined Pipe Piping Pipeline		Abrasive Rubber Lined Pipe Piping Pipeline	Acid Resistant Rubber Lined Pipe Piping Pipeline
Rubber Lined Seamless Steel Tube Pipe Piping Pipeline		Salt Resistant Rubber Lined Pipe Piping Pipeline
Natural vulcanized Rubber Lined Pipe Tube Pipeline		Heat Vulcanized Rubber Lined Pipe	Polyurethane Lined Steel Pipe
Rubber Lined Pipeline Mining Slurry Wear Resistant Rubber Lined Pipe		Polyurethane Lined Pipe & Urethane Lined	Polyurethane Pipe Fitting Poly Urethane Pipe Fitting
Type end : Plain Ends / Beveled Ends: Tubes - Pipe ASTM A790 / SA790M
• Bevel End (BE) • Bevel Both Ends (BBE) • Bevel Large End (BLE) • Bevel One End (BOE) • Bevel Small End (BSE) • Bevel for Welding (BFW) • Buttweld End (BE)	• End of Pipe (EOP) • Flange One End (FOE) • Plain End (PE) • Plain Both Ends (PBE) • Plain One End (POE) • Thread End (TE) • Thread Both Ends (TBE)	• Thread Large End (TLE) • Thread One End (TOE) • Thread Small End (TSE) • Threads Only (TO) • Threads per Inch (TPI)
Standard : Pipes and Tubes Seel - ASTM A790 / SA790M
ASME : B36.10M	ANSI B36.10M	ASME : B36.19M	ANSI : B36.19M

ASTM A789/A790 DUPLEX SEAMLESS PIPES SUPPLIER IN INDIA, DUPLEX TUBES EXPORTER, DUPLEX ERW PIPES/TUBES

DUPLEX STAINLESS STEEL PIPES SUPPLIERS, DUPLEX 2205 TUBING EXPORTER, DUPLEX ERW PIPES MANUFACTURER

WNR 1.4462, UNS S31803 / S32205 PIPES SUPPLIER, 2205 DUPLEX SEAMLESS PIPES, 2205 DUPLEX TUBES SUPPLIER

Seamless Duplex Pipes / Tubes: ASTM A 789 / 790, ASME SA 789 / 790

Welded Duplex Pipes / Tubes: ASTM A 789 / 790, ASME SA 789 / 790

Duplex Pipe Fittings & Flanges: ASTM A 815, ASME SA 815

SEAMLESS AND WELDED DUPLEX PIPE/SEAMLESS SUPER DUPLEX PIPE

SIZES:1/2"NB - 8"NB (Seamless Duplex/Super Duplex)

SIZES:6"NB - 24 "NB (Welded Duplex)

Duplex Grade. Seamless Ferritic/Austenitic Stainless Steel Pipe to ASTM A790 UNS S31803 (Duplex) UNS S32760 (Super Duplex) and ASTM A928 UNS S31803 (Welded Duplex). Cold/Hot finished, solution annealed & descaled in random lengths 5-7.5 metres. Conforming to NACE Standard MR-0175 (Latest Revision)

Welded Pipe Specifications

Usually it will be to ASTM A312. If it is to ASTM A358 then there are various Classes available as shown below. The Class Number dictates how the pipe is welded and what non-destructive tests:

Class 1:	Pipe shall be double welded by processes employing filler metal in all passes and shall be completely radiographed.
Class 2:	Pipe shall be double welded by processes employing filler metal in all passes. No radiography is required.
Class 3:	Pipe shall be welded in one pass by processes employing filler metal and shall be completely radiographed
Class 4:	Same as Class 3 except that the welding process exposed to the inside pipe surface may be made without the addition of filler metal.
Class 5:	Pipe shall be double welded by processes employing filler metal in all passes and shall be spot radiographed.

Pipe Specifications - Seamless/Welded
ASTM A312:Seamless and straight-seam welded austenitic pipe intended for high temperature and general corrosive service. Filler metal not permitted during welding.

ASTM A358:Electric fusion welded austenitic pipe for corrosive and/or high temperature service. Typically only pipe up to 8 inch is produced to this specification. Addition of filler metal is permitted during welding.

ASTM A790:Seamless and straight-seam welded ferritic/austenitic (duplex) pipe intended for general corrosive service, with a particular emphasis on resistance to stress corrosion cracking.

ASTM A409:Straight-seam or spiral-seam electric fusion welded large diameter austenitic light-wall pipe in sizes 14” to 30” with walls Sch5S and Sch 10S for corrosive and/or high temperature service.

ASTM A376:Seamless austenitic pipe for high temperature applications.

ASTM A813:Single-seam, single- or double- welded austenitic pipe for high temperature and general corrosive applications.

ASTM A814:Cold-worked welded austenitic pipe for high temperature and general corrosive service.

Note:Welded pipes manufactured to ASTM A312, A790 and A813 must be produced by an automatic process with NO addition of filler metal during the welding operation.

Markings on the Pipe
The full identification of the pipe should be continuously marked down its whole length, including:

Nominal Pipe Size (Nominal Bore)
Schedule (Wall Thickness)
Specification
Grade
Method of Manufacture (Seamless or Welded)
Heat Number
Manufacturer’s Name or Symbol

Carbon & Carbon Alloys
SA-214	Welded Carbon Steel Heat Exchanger & Condenser Tubes
SA-179	Seamless Cold Drawn Heat Exchanger & Condenser Tubes
SA-213	T5, T9, T11 Seamless Ferritic & Austenitic Steel Boiler & Heat Exchanger Tubes
SA-178	Welded Carbon Steel Boiler Tubes
SA-192 / SA-210	Seamless Carbon Steel Boiler Tubes
SA-334	Gr 1, Gr 6 Seamless & Welded Carbon Alloy Tubes for Low Temperature Service
A-513	Types 1 – 6 Carbon & Alloy Steel Tubing
A-519	4130 / MIL-T-6736 Aircraft Quality Seamless Carbon Mechanical Tubing
A-53/ A106	Gr B Seamless & Welded Carbon Steel Pipe
Stainless & Nickel Alloys
SA-249	300 & 400 series grades including T304, T316, T321, T347, T409, T439, & more… Welded Stainless Steel Boiler & Heat Exchanger Tubes
SA-213	300 & 400 series grades including T304, T316, T321, T347, T410, & more… Seamless Stainless Steel Boiler & Heat Exchanger Tubes
SA-789	2205, 2507 Seamless & Welded (Duplex) Stainless Steel Tubing for General Service
SA-312	300 & 400 series grades including T304, T316, T321, T347, T409, T439, & more… Seamless & Welded Stainless Steel Pipe
A-511	Seamless Stainless Steel Mechanical Tubing
A-403 / A-774	WPW,WPWX Welded Stainless Steel Pipe Fittings
SB-163	200, 400, 800 Seamless Nickel & Nickel Alloy Heat Exchanger & Condenser Tubing
Copper & Cupro Nickel Alloys
SB-111	443, 706, 715 Seamless Copper & Copper Alloy Heat Exchanger & Condenser Tubing
SB-75	Seamless Copper Tubing

Duplex 2205 Product Information

Products	OD	Wall	Lengths and/or coils	Grades	OD	Wall	Lengths
Welded Austenitic Steel Boiler, Super Heater, Heat-Exchangers & Condenser Tubes Specifications: ASTM-A789 and ASME-SA789	3/16" (4.76 mm) to 4" (101.6 mm) Metric sizes available	0.020" (0.51 mm) to 0.220" (5.59 mm)	Random or cut lengths up to 68' (20.7 m) Coils to 1-1/2" OD	Duplex 2205	<1-1/2" (38.1 mm) ±0.005" (0.13 mm) 1-1/2" (38.1 mm) to 3" (76.2 mm) ±0.010" (0.25 mm) 3-1/2" (88.9 mm) to 4" (101.6 mm) ±0.015" (0.38 mm)	±10%	Randoms up to +2" (50.8 mm) Cuts +1/8" (3 mm) -0" Coils to 80,000' (24,384 m)

Products

Wall

Lengths and/or coils

Grades

Wall

Lengths

Welded Austenitic Steel Boiler, Super Heater, Heat-Exchangers & Condenser Tubes

Specifications: ASTM-A789 and ASME-SA789

3/16" (4.76 mm) to 4" (101.6 mm)

Metric sizes available

0.020" (0.51 mm) to 0.220" (5.59 mm)

Random or cut lengths up to 68' (20.7 m)

Coils to 1-1/2" OD

Duplex 2205

<1-1/2" (38.1 mm) ±0.005" (0.13 mm)

1-1/2" (38.1 mm) to 3" (76.2 mm) ±0.010" (0.25 mm)

3-1/2" (88.9 mm) to 4" (101.6 mm) ±0.015" (0.38 mm)

±10%

Randoms up to +2" (50.8 mm) Cuts +1/8" (3 mm) -0"

Coils to 80,000' (24,384 m)

Physical Properties of Duplex 2205 Alloys in the Annealed Condition at -20°F to +100°F

Fabrication Welding Common welding methods for tubular products are: • MMA, SMAW (Shielded Metal Arc Welding) • TIG, GTAW (Gas Tungsten Arc Welding) • MIG, MAG, GMAW (Gas Metal Arc Welding) • FCAW (Flux-Cored Arc Welding) • PAW (Plasma Arc Welding) • SAW (Submerged Arc Welding) The general recommendation for shielding

ASTM A790 UNS S32760 Super Duplex Stainless Steel Pipe ASTM A790 UNS S32760 Super Duplex Stainless Steel Tube

UNS S32760 known as Zeron 100 ,is a super duplex stainless steel supplied in the hot worked and solution annealed condition. As a super duplex stainless steel, it combines the desirable aspects of both austenitic and ferritic grades. The higher chromium, molybdenum and nitrogen contents result in a Pitting Resistance Equivalent number (PREN) of >40, providing pitting and crevice corrosion resistance superior to austenitic and duplex stainless steels in almost all corrosive media, and a Critical Pitting Temperature exceeding 50°C nb. versions of the PREN formula also include W as a positive influence on overall pitting resistance.

UNS S32760 ,Zeron 100 provides higher strength than both austenitic and 22% Cr duplex stainless steels, and is listed in NACE MR 0175 for sour service and ASME for pressure vessel applications.

A790 A790M UNS S32760 Super Duplex Stainless

Steel Tubes Chemical Composition

ASTM A790 UNS S32760
C.	Cr.	Cu.	Mn.	Mo.	N.	Ni.	P.	S.	Si.	W.
0.030%	24.00-	0.50-	1.00%	3.00-	0.20-	6.00-	0.035%	0.010%	1.00%	0.50-
max	26.00%	1.00%	max	4.00%	0.30%	8.00%	max	max	max	1.00%

S32760 Super Duplex Steel Tubing Minimum Mechanical Properties at Room Temperature
(EN10088-3 1.4501 UNS S32760 OD19.05mm,WT1.65mm – Annealing and Pickeling)

Tensile (UTS)		678-692N/mm²
0.2% Proof Stress		530 N/mm² Min
Elongation		29-30%
Hardness(Rockwell)		29/30
Impact		100J

Super Duplex Stainless Steel Specifications

EN10088-3 UNS S32760 F55 1.4501 Grade X2CrNiMoCuWN25-7-4 ASTM A182 F55 NACE MR01-75 ISI 15156ASTM A276 A314 SAE J405 Norsok MDS D51 D55 D57 D58

ASTM A790 UNS S32760 Mechanical Properties


0.2% Proof Stress	550 N/mm²	79.8 ksi
Tensile Strength	750 N/mm²	108.8 ksi
Elongation, 5.65√S₀	25%
Reduction of area	45%
Hardness (Brinell)	270 max.
Impact Strength (Room Temp)	80J	59 lb.ft
Impact Strength (-46^oC)	60J av (45J min)	44 lb.ft av (33 lb.ft min)

Notes:

Testing shall be carried out in accordance with ASTM A370 or EN ISO 6892-1 (tensile), EN ISO 6506-1 (hardness)
Minimum properties quoted (tested at room temperature in a longitudinal direction)
Testing performed on each melt of material per heat treatment batch
Hardness shall be in accordance with NACE MR 1075 with a maximum HRC of 2
ASTM G48A corrosion test (at 50°C) no pitting and < 3.0 g/m² weight loss (ASTM specification < 4.0 g/m²)
Ferrite content 35-55%
Microstructure certified free from grain boundary carbides, sigma, chi and laves phases

S32760 Super Duplex Steel Pipe Applications
UNS S32760 is used in the oil and gas industry, on offshore platforms, in heat exchanger, chemical processing equipment, pressure vessels and boilers.

Oil and gas industry equipment,
Offshore platforms, heat exchangers, process and service water systems, fire-fighting systems, injection and ballast water systems,
Chemical process industries, heat exchanger, vessels, and piping,
Desalination plants, high pressure RO-plants and seawater piping,
Mechanical and structural components, high strength, corrosion-resistant parts,
Power industry FGD systems, utility and industrial scrubber systems, absorber towers, ducting, and piping.

http://tapgroup.vn/danh-muc/steel-pipe-132

http://tapgroup.vn/danh-muc/steel-pipe-132 ASTM A790 Standard for Duplex Stainless Steel Pipe

ASTM A790 covers seamless and straight-seam welded ferritic/austenitic duplex stainless steel pipe for general corrosive service, with particular emphasis on resistance to stress corrosion cracking. The pipe shall be made by the seamless or an automatic welding process, with no addition of filler metal in the welding operation. Heat analysis shall be made to determine the percentages of the elements specified. Tension tests, hardening tests, flattening tests, hydrostatic test and nondestructive electric tests shall be made to conform to the specified requirements.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. This specification covers seamless and straight-seam welded ferritic/ austenitic stainless steel pip intended for general corrosive service, with particular emphasis on resistance to stress corrosion cracking. These steel are susceptible to embrittlement if used for prolonged periods at elevated temperatures.

Optional supplementary requirements are provided for pipe when a greater degree of testing is desired. These supplementary requirements call for additional tests to be made and, when desired, one or more of these may be specified in the order.

Appendix X1 of this specification lists the dimensions of welded and stainless steel seamless pipe as shown in ANSIB36.19. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification.

The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the M designation of this specification is specified in the order.

The dimensionless designator Nominal Pipe Size (nominal pipe size) has been substituted in this standard for such traditional terms as nominal diameter, size, and nominal size.

Referenced Documents

ASTM A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A923 Test Methods for Detecting Detrimental Intermetallic Phase in Duplex Austenitic/Ferritic Stainless Steel
ASTM A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
ASTM A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe
ASTM E213 Practice for Ultrasonic Examination of Metal Pipe and Tubing
ASTM E309 Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation
ASTM E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
ASTM E426 Practice for Electromagnetic (Eddy-Current) Examination of Seamless and Welded Tubular Products, Austenitic Stainless Steel and Similar Alloys
ASTM E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
ASTM A5.9 Corrosion-Resisting Chromium and Chromium-Nickel Steel Welding Rods and Electrodes
ASTM B1.20.1 Pipe Threads, General Purpose
ASTM B36.10 Welded and Seamless Wrought Steel Pipe
ASTM B36.19 Stainless Steel Pipe
SAE J 1086
SNT-TC-1A Personal Qualification and Certification in Nondestructive Testing

Index Terms

duplex stainless steel pipe; ferritic/austenitic stainless steel; seamless steel pipe; stainless steel tube; steel pipe; welded steel pipe; Austenitic stainless steel pipe--specifications; Corrosion-resistant steel--specifications; Corrosive service applications--pipe (steel); Duplex stainless steel--specifications; Ferritic steel pipe--specifications; Seamless austenitic steel pipe--specifications; Stainless steel tube--specifications; Welded steel pipe--specifications; ICS Number Code 23.040.10; 23.040.10; 23.040.10

ASTM A790 - 16 Standard Speciﬁcation for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
ASME SA790 / 790M - 15 Standard Speciﬁcation for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
Duplex Stainless Steel Pipe Specification

Standard Item	ASTM A789		ASTM A790		EN 10216-5
Grade	S31803 S32205 S32750		S31803 S32205 S32750		1.4301 1.4307 1.4948 1.4315 1.4401 1.4404 1.4571 1.4541 1.4941 1.4845 1.4449 1.4438 1.4550 1.4912 1.4462 1.4410
Yield Strength (Mpa)	≥450；≥485；≥550		≥450；≥450；≥550		---
Tensile Strength (Mpa)	≥620；≥655；≥800		≥620；≥655；≥800		---
Elongation(%)	≥25；≥25；≥15		≥25；≥25；≥15		---
Hydrostatic Test	The Hydrostatic Test shall be in accordance with ASTM A1016. Could be replaced by ECT.		The Hydrostatic Test shall be in accordance with ASTM A999. Could be replaced by ECT.		The hydrostatic test shall be carried out at a test pressure of 7MPa or at a test pressure calculated using the following formula P=2St/D S=70%Rp0.2
Intergranular Corrosion Test	Usually use Pitting Corrosion Test.		Usually use Pitting Corrosion Test.		EN ISO 3651-2 (Optional)
Eddy Current Test	Could be replaced by HT.		Could be replaced by HT.		EN 10246-3
O.D. Tolerance (mm)	O.D.	O.D.Tolerance	O.D.	O.D.Tolerance	O.D. Tolerance Class
	D<12.7	+/-0.13	10.3≤D≤48.3	+0.40/-0.80	D3	+/-0.75% or +/-0.3mm
	12.7≤D<38.1	+/-0.13	48.3	+0.80/-0.80
					whichever is the greater
	38.1≤D<88.9	+/-0.25	114.3	+1.60/-0.80	D4	+/-0.5% or +/-0.1mm
	88.9≤D<139.7	+/-0.38	219.1	+2.40/-0.80
					whichever is the greater
W.T. Tolerance (mm)	O.D.	W.T.Tolerance	O.D.	W.T.Tolerance	W.T. Tolerance Class
	D<12.7	+/-15%	10.3≤D≤73.0	+20.0%/-12.5%	T3	+/-10% or +/-0.2mm
	12.7≤D<38.1	+/-10%
			88.9≤D≤457.0 t/D ≤5%	+22.5%/-12.5%	whichever is the greater
	38.1≤D<88.9	+/-10%			T4	+/-7.5% or +/-0.15mm
			88.9≤D≤457.0 t/D >5%	+15.0%/-12.5%
	88.9≤D<139.7	+/-10%
					whichever is the greater