Stainless Steel Pipe Specifications
Stainless Steel Pipe Specifications
Stainless Steel Pipe Specifications
Stainless steel are iron-based alloys usually containing at least 11.5% chromium. Other elements, Nickel being the
most Important, may be added in combination with chromium to obtain special properties. Stainless steel are highly
resistant to corrosive attack and to oxidation at high temperature. in general, corrosion resistance and oxidation
resistance increase progressively, though not proportionately, with the increase in chromium content.
Stainless steel pipe and tubing are used for a variety of reasons: to resist corrosion and oxidation, to resist high
temperature, for cleanliness and low maintenance costs, and to maintain the purity of materials which come In
contact with stainless. The inherent characteristics of stainless steel tubing permits the design of thin wall piping
systems without fear of early failure due to corrosion. The use of fusion welding to join such piping eliminates the
need for threading.
Type 304 stainless steel is the most widely used analysis for general corrosion resistant tubing and pipe applications,
it is used in chemical plants, refineries, paper mills, and food processing industries. Type 304 has a maximum carbon
content of .08%. It is not recommended for use in the temperature range between 800° F and 1650° F due to
carbideprecipitation at the grain boundaries which can result in intergranular corrosion and early failure under
certain conditions.
Type 304L stainless steel. Is the same as 304 except that a .03% maximum carbon content is maintained which
precludes carbon precipitation and permits the use of this analysis in welded assemblies under more severe corrosive
conditions. Type 318 is much more resistant to pitting than other chromium nickel alloys due to the addition of 2%
to 3% molybdenum it is particularly valuable wherever acids, brines, sulphur water, seawater or halogen salts are
encountered. Type 316 is widely used in the sulphite paper industry and for manufacturing chemical plant apparatus,
photographic equipment, and plastics.
Type 316L stainless steel, like 304L, is held to a maximum carbon content of .03%. This permits its use in welded
assemblies without the need of final heat treatment. It is used extensively for pipe assemblies with welded fitting..
Other fields where stainless steel pipe and tubing are used are: aviation, electronics, automotive, cyrogenic, marine,
air conditioning and heating, medical, architectural and textiles.
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ASTM A312/ASME SA 312 Standard for Seamless Welded Stainless Steel Pipe
ASME SA213 Seamless ferritic and austenitic alloy steel boiler, super heater and heat exchanger tubes
ASTM A269 Seamless and welded austenitic stainless steel tubing for general service
ASME SA789 Seamless and welded ferritic-austenitic stainless steel tubing for general service
Scope:
Pipe intended for high temperature and general corrosive service as in A-312, plus electric fusion welded pipe as in
A-358 and intended for high temperature and general corrosive service or both.
General Requirements:
Range:
ASTM A312 pipe is more commonly found from 1/8″ IPS to and including 24” NPS in standard schedules 5, 10, 20,
and 40. On special application, sizes can be produced to 60” lPS through schedule 80 walls by certain mills. ASTM
A-358 is usually produced in sizes 8” IPS and larger and where filler metal is added to the weld. This specification
covers five classes of pipe and are usually determined by the end application and needs of the pipe.
ASTM A312 pipe is manufactured by two different processes. Pipe through 6” IPS is manufactured by the
continuous welding process and is very similar to welded tubing. Coils of flat roll strips are fed into sizing rolls and
welded. Material is then annealed (usually in an open air furnace), straightened, cut, pickled, tested, and inspected.
In full finished pipe, material is cold worked after welding. This can be done by rolling, forging, or drawing the weld
bead; but primarily the weld is rolled.
Pipe 8” IPS and larger is manufactured by the batch method or process. Unlike the continuous welding method.
material made by this batch method is made in single lengths. Plates, cut to length and width, are formed from flat
into tubular shape by a press and welded. Material is then annealed, sized, and straightened, ends trimmed or cut to
specific smaller lengths, pickled, and inspected.
“As-Welded” Grade “
“as-welded” pipe and tubing is straight-seam welded using ASME qualified automatic gas tungsten-arc procedures
andcan be supplied in a wide range of diameters and wall thicknesses from any of the weldable corrosion resistant
alloys. Normally furnished with square cut ends, pipe with beveled, belied, or roil-grooved ends can be provided.
Spot radiography or 100% radiography of welded seams can also be performed. pickles and passivates its pipe and
tubing to maintain corrosion resistance and to prevent surface discoloration from free iron oxidation. “As-welded”
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pipe and tubing is commonly used in pulp and paper mills, food processing plants. and other industries where
corrosion resistance is essential.
ASTM A 778
This specification covers welded unannealed stainless steel tube intended for low to moderate temperatures and
corrosive service where heat treatment is not required for corrosion resistance. A 788 is considered to be the most
applicable ASTM specification for “as welded” pipe and differs from it only in that a transverse guided-bend test
and a transverse tension test are required per lot.
This specification includes minimum wall thickness seamless austenitic stainless steel tubing intended for high
temperature usage such as boiler, superheater and heat exchanger tubes, Production is generally limited to tubing
A” inside diameter to 5” outside diameter and .015” to ,500” inclusive in wail thickness. All material is to be
furnished in the heat treated condition.Alaskan stocks “average wall” austenitic A 213 tubing.
This specification covers welded austenitic stainless steel tubing intended for high temperature usage such as boiler,
superheater, heat exchanger, or condenser tubes. Production is generally limited to tubing 1/8″ inside diameter
through 5” outside diameter and .01 5” to .320” inclusive in wall thickness. All material is to be furnished in the heat
treated condition.The principal manufacturing procedures specified under A 249 are:
3. Tension, flattening, flange. reverse-bend and hardness tests required each lot.
ASTMA 269
This specification covers seamless and welded austenitic stainless steel pipe intended for low or high temperature
and general corrosive service. Production is generally limited to tubing 1/4” inside diameter and larger and .020” in
nominal wall thickness and heaver. All material is to be furnished in the heat treated condition, Mechanical
requirements are the same as listed under A 249.
This specification covers stainless steel seamless pipe and straight-seam welded stainless steel pipe intended or high
temperature and general corrosive service. The A 312 manufacturing process is suited to high-volume production
and is therefore generally limited to diameters and schedule wall thick nesses shown in ANSI B36.10 and ANSI
B36.19 (See page 4,40). stocks A312 pipe with immediate delivery available from a complete inventory of both
common and special alloys. The principal manufacturing procedures specified under A 312 are;
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ASTM A 358 (ASME SA -358 is generally identical with some additional requirements) This specification covers
stainless steel pipe intended for high temperature and general corrosive service. Production is generally limited to
diameters and schedule wall thicknesses of 8” and larger as shown in ANSI B36.10 and ANSI B36.19 (See page
4.40). Pipe is normally welded with filler metal (except the root pass on Class 4) and can be specified as (a) single or
double welded; (b) 100%. spot, or no radiography; (c) heat treated after welding. made from annealed plate and not
heat treated after welding, or made from unannealed plate and not heat treated after welding. The principal
manufacturing procedures specified under A 358 are:
This specification covers seamless austenitic stainless steel pipe intended for high temperature service. Among the
grades covered are five H grades and two nitrogen grades that are specifically intended for high temperature service.
All material is furnished in the heat treated condition unless waived and specifically marked ‘HT-O”. Hydrostatic
tests are required for each length of pipe. Tension and flattening tests are required per lot.
ASTM A 409 (ASME SA-409 Is generally identical with some additional requirements)
This specification covers Schedule 5s and 10s straight-seam or spiral-seam welded stainless steel pipe intended for
high temperature and general corrosive service. Production is normally limited to sizes of 14” through 30”, however,
special diameters, lengths and alloys can be specified. Pipe manufactured to A 409 may be heat treated after
welding, made from annealed plate and not heat treated after welding, or made from unannealed plate and not heat
treated after welding. The principal manufacturing
2. Transverse guided-bend tests and transverse tension tests each length. MIL-P-1144
This specification covers seamless and welded austenitic stainless steel pipe intended for elevated temperature and
general corrosive service, including cryogenic applications. This specification is approved for use by the Naval Sea
Systems Command and is available for use by all Departments and Agencies of the Department of Defense. All pipe
isto be furnished in the heat treated condition and subjected to nondestructive electric or hydrostatic pressure testas
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applicable. Tension, flattening and intergranular corrosion tests are required by lot.Related References:
ASTM- Standard Section One: Iron and Steel Products Steel Piping, Steel Tubing, Fittings
ASTM A1016- Standard Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless
17a Steel Tubes
ASTM A999-15 Standard Specification for General Requirements for Alloy and Stainless Steel Pipe
A 213 / A
Seamless ferritic and austenitic alloy steel boiler, superheater and heat exchanger tubes
213M-15
SA 240 / SA Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure
240M Vessels and for General Applications
SA 249 / SA
Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat Exchanger, and Condenser Tubes
249M
A 268 /
Seamless and welded ferritic and martensitic stainless steel tubing for general service
A268M -10
A 269 / A
Seamless and welded austenitic stainless steel tubing for general service
269M-15
A 270 / A Seamless and welded austenitic stainless steel tubing for general service
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270M-15
A 312 / A
Seamless and welded austenitic stainless steel pipes
312M-17
A 450 / A
Standard Specification for General Requirements for Carbon and Low Alloy Steel Tubes
450M-15
A511 /
Standard Specification for Seamless Stainless Steel Mechanical Tubing and Hollow Bar
A511M – 16
A556 /
Specification for Seamless Cold-Drawn Carbon Steel Feedwater Heater Tubes
A556M – 05
A688 /
Specification for Seamless and Welded Austenitic Stainless Steel Feedwater Heater Tubes
A688M – 15
A 789 / A
Seamless and welded ferritic-austenitic stainless steel tubing for general service
789M-17
A 790 / A
Seamless and welded ferritic-austenitic stainless steel pipe
790M-16
A 923 / A
Test Methods for Detecting Detrimental Intermetallic Phase in Duplex Stainless Steel
923M
A 928 / A Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of
928M Filler Metal
U Bend
Standards for U bend Stainless Steel Tubes for Heat Exchanger
Tubes
ASTM
Standard Practice for Ultrasonic Testing of Metal Pipe and Tubing Ultrasonic Testing
E213-09
NACE
Petroleum and natural gas industries – Materials for use in H2S-containing environments in oil and gas production
MR0175
E213 – 14 Standard Practice for Ultrasonic Testing of Metal Pipe and Tubing
Standard Practice for Electromagnetic (Eddy Current) Examination of Seamless and Welded Tubular Products,
E426- 16
Titanium, Austenitic Stainless Steel and Similar Alloys
A262 – 15 Standard Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
A370 – 17 Standard Test Methods and Definitions for Mechanical Testing of Steel Products
*Note:
1. Nickel Alloys standard: ASTM B111, ASTM B161, ASTM B163, ASTM B165, ASTM B167, ASTM
B338, ASTM B407, ASTM B423, ASTM B444, ASTM B619, ASTM B622, ASTM B626, ASTM B668, ASTM
B677, ASTM B829
2. Section Two: Nonferrous Metals Nickel, Cobalt, Lead, Tin, Zinc, Cadmium, Precious, Reactive, Refractory
Metals and Alloys; Materials for Thermostats, Electrical Heating and Resistance Contacts, and Connectors
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ASME Standards
ASME B36.10M
Welded and Seamless Wrought Steel Pipe
– 2015
ASME B36.19M
Stainless Steel Pipe
– 2004
SA 213 / SA
Seamless ferritic and austenitic alloy steel boiler, superheater and heat exchanger tubes
213M
SA 240 / SA Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure
240M Vessels and for General Applications
SA 249 / SA
Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat Exchanger, and Condenser Tubes
249M
SA 268 / SA
Seamless and welded ferritic and martensitic stainless steel tubing for general service
268M
SA 312 / SA
Seamless and welded austenitic stainless steel pipes
312M
SA 511 / SA
Standard Specification for Seamless Stainless Steel Mechanical Tubing and Hollow Bar
511M
SA 556 / SA
Specification for Seamless Cold-Drawn Carbon Steel Feedwater Heater Tubes
556M
SA 688 / SA
Specification for Seamless and Welded Austenitic Stainless Steel Feedwater Heater Tubes
688M
SA 789 / SA
Seamless and welded ferritic-austenitic stainless steel tubing for general service
789M
SA 790 / SA
Seamless and welded ferritic-austenitic stainless steel pipe
790M
UNI-Standards
UNI 6904 Seamless tubes of special alloyed corrosion and heat resisting stainless tubes
GOST-Standards
Stainless steel
GOST 9941 Seamless stainless steel tubes, cold and hot finished
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European-Standards
Stainless steel
Stainless steels – Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general
EN 10088-2
purposes
Stainless steels. Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products
EN 10088-3
of corrosion resisting steels for general purposes
Seamless steel tubes for pressure purposes – Technical delivery conditions- Part 2: Non-alloy and alloy steel tubes with
EN 10216-2
specified elevated temperature properties
Seamless steel tubes for pressure purposes – Technical delivery conditions- Part 4: Non-alloy and alloy steel tubes with
EN 10216-4
specified low temperature properties
EN ISO
Seamless stainless steel tubes (Dimensions and weights)
1127-1997
EN 10294-1 Hollow bars for machining — Technical delivery conditions — Part 1: Non alloy and alloy steel
Hollow Bars for Machining – Technical delivery conditions – Part 2: Stainless Steels with Specified Machinability
EN 10294-2
Properties
Seamless circular steel tubes for mechanical and general engineering purposes – Technical delivery conditions – Part 2:
EN 10297-2
Stainless steel
*Note: This European standard is replacing old national standards for pressure purpose (DIN 17458 DIN 17459 NFA
49117 NFA 49217 NFA 49218 BS 3605 BS 3605-1 etc…
All European standards have their own national designation (example NF EN 10216-5 DIN EN 10216-5 BS EN
XXXXX UNI EN XXXXX ..)
DIN-Standards
Stainless Steel
DIN 17458 Seamless circular Austenitic stainless steel tube subject to special requirement
DIN 17459 Seamless Circular High Temperature Austenitic Stainless Steel Tube Subject To Special Requirement
JIS Standards
Stainless Steel
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ASTM
Standard Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock
B111
ASTM
Standard Specification for Nickel Seamless Pipe and Tube
B161
ASTM
Standard Specification for Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes
B163
ASTM
Standard Specification for Nickel-Copper Alloy (UNS N04400)* Seamless Pipe and Tube
B165
ASTM Standard Specification for Nickel-Chromium-Iron Alloys, Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617),and
B167 Nickel-Iron-Chromium-Tungsten Alloy (UNS N06674) Seamless Pipe and Tube
ASTM
Standard Specification for U-Bend Seamless Copper and Copper Alloy Heat Exchanger and Condenser Tubes
B395
ASTM
Standard Specification for Nickel-Iron-Chromium Alloy Seamless Pipe and Tube
B407
ASTM Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloys (UNS N06625 and UNS N06852) and
B423 Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Pipe and Tube
ASTM Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloys (UNS N06625 and UNS N06852) and
B444 Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Pipe and Tube
ASME
Specification for Seamless Copper-Nickel Pipe and Tube
SB 466
ASME
Standard Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube
SB622
ASME
Standard Specification for UNS N08028 and N08029 Seamless Pipe and Tube
SB668
ASTM
Standard Specification for UNS N08925, UNS N08354, and UNS N08926 Seamless Pipe and Tube
B677
ASME Standard Specification for Iron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 and UNS N08367) Seamless Pipe and
SB690 Tube
ASTM
Standard Specification for Nickel-Alloy (UNS N06625, N06219 and N08825) Welded Pipe
B705
ASTM
Standard Specification for seamless UNS N08020, UNS N08026, and UNS N08024 nickel alloy pipe and Tube
B729
ASTM B111 Standard Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock
ASTM B395 Standard Specification for U-Bend Seamless Copper and Copper Alloy Heat Exchanger and Condenser
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Tubes
BS 2871-2 Specification for copper and copper alloys. Tubes. Part 2: Tubes for general purposes
EN 12451 Copper and copper alloys – Seamless, round tubes for heat exchangers
DIN1785 Wrought Copper and Copper Alloy Tubes for Condensers and Heat Exchangers
EEMUA 144 Specifications covering 90-10 Cu-Ni Piping for Offshore Applications are : Tubes Seamless and
Welded Publication
EEMUA 234 UNS 7060X – 90/10 Copper nickel alloy piping for offshore applications (Incorporating EEMUA 144,
145 and 146)
DIN1785 Wrought Copper and Copper Alloy Tubes for Condensers and Heat Exchangers
EN 12451 CuNi10Fe1Mn CuZn20Al2As CuZn28Sn1As CuNi30Mn1Fe Copper and Copper Alloys Seamless
Round Tubes for Heat Exchangers
DIN 86019 Seamless Tubes Made of CuNi10Fe1.6Mn for Pipes – Dimensions for Standard Tubes and Precision
Tubes
BS 2871 CN102 CN107 CN108 CZ110 CZ111 CZ126 CZ108 C101 C102 C106 Copper and Copper Alloy Tubes
ASTM B395 C28000 C44300 C68700 C70600 C71500 U Bend Copper Alloy Heat Exchanger and Condenser Tubes
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22/7/2021 Stainless Steel Pipe Specifications - China Guanyu Stainless Steel Tube
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