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ASTM A403 Material

Views: 26     Author: Site Editor     Publish Time: 2024-11-28      Origin: Site

ASTM A403 Material is a standard developed by the American Society for Testing and Materials (ASTM), mainly for forged austenitic stainless steel pipe fittings. This standard specifies in detail the requirements for the manufacturing, size, tolerance, material quality, etc. of pipe fittings, and plays an important role in regulating the production, inspection and use of stainless steel pipe fittings.


ASTM A403 Material Equivalent standard


This specification covers wrought stainless steel fittings for pressure piping applications.1.2 Several grades of austenitic stainless steel alloys are included in this specification Grades are designated with a prefix,WP or CR, based on the applicable ASME Or MSS dimensional and rating standards, respectively.This specification covers the standard for wrought austenitic stainless steel fittings for pressure piping applications. The material for fittings shall consist of forgings, bars, plates, or seamless or welded tubular products. Forging or shaping operations shall be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of two or more of these operations.


WP Grade Stainless Steel Pipe Fittings

Material under this standard named as WP Grade, and for each WP grade stainless steel, several categories of pipe fittings are included, to indicate that a seamless or welded structure is used. Class designations are also used to indicate non-destructive testing methods and the extent of non-destructive testing (NDE).


Units of Description

This standard and applicable material standards are described in both inch-pound units and SI units. However, unless the "M" standard number (SI unit) is specified in the order, the material is supplied in inch-pound units.

Values expressed in either inches-pounds or SI units should be considered standard values. In the text, SI units are shown in brackets. Since the values in the two unit systems are unlikely to be exactly equal, it is necessary to independently adopt two unit systems. If mixed, it will lead to inconsistency with this standard.


ASTM A403 Fitting Classes for WP Grades

CR

Corrosion resistant grade. S through WU Classes do not apply.

WP-S

Seamless

WP-W

Welded, RT or UT all pipe starting material welds made with filler metal. All fitting manufacturer welds except as excluded in A/SA403 paragraph 5.4.3.

If UT is substituted for RT, all welds must be examined 100% for their length as required by A/SA403 paragraph 5.6

WP-WX

RT all welds with or without filler metal.

WP-WU

UT all welds with or without filler metal.

WPgrade-grade-class

Insert grades (304-304L) and class (S,W,WX, or WU). Applies to fittings meeting all chemical and physical requirements of both grades.


DIN / EN / ASTM Equivalent Standard

Stainless steel

Material number

EN

ASTM

1.4307     –

X2CrNi18-9

A 403 Grade WP304L

1.4306     X 2 CrNi 19 11

X2CrNi19-11

A 403 Grade WP304L

1.4301     X 5 CrNi 18 10

X5CrNi18-10

A 403 Grade WP304

1.4541     X 6 CrNiTi 18 10

X6CrNiTi18-10

A 403 Grade WP321

1.4550     X 6 CrNiNb 18 10

X6CrNiNb18-10

A 403 Grade WP347

1.4404     X 2 CrNiMo 17 13 2

X2CrNiMo17-12-2

A 403 Grade WP316L

1.4401     X 5 CrNiMo 17 12 2

X5CrNiMo17-12-2

A 403 Grade WP316

1.4571     X 6 CrNiMoTi 17 12 2

X6CrNiTi18-10

1.4429     X 2 CrNiMoN 17 13 3

X2CrNiMoN17-13-3

A 403 Grade WP316LN

1.4436     X 5 CrNiMo 17 13 3

X3CrNiMo17-13-3

A 403 Grade WP316

1.4435     X 2 CrNiMo 18 14 3

X2CrNiMo18-14-3

A 403 Grade WP316LN


ASTM A403 Chemical Composition

CHEMICAL

LIMITS

C

Mn

P

S

Si

Ni

Cr

Mo

N

Cu

ASTM A403 WP304

MIN






8

18




MAX

0.08

2

0.045

0.03

1

11

20




ASTM A403 WP316

MIN






10

16

2



MAX

0.08

2

0.045

0.03

1

14

18

3



ASTM A403 WP316L

MIN






10

16




MAX

0.03

2

0.05

0.03

1

14

18




ASTM A403 WP317

MIN






11

18

3



MAX

0.08

2

0.05

0.03

1

15

20

4



ASTM A403 WP321

MIN






9

17




MAX

0.08

2

0.045

0.03

1

12

19




ASTM A403 WP904L

MIN






23

19

4


1

MAX

0.02

2

0.045

0.035

1

28

23

5

0.1

2


ASTM A403 Mechanical Property

MATERIAL

ASTM A403 WP304

ASTM A403 WP316

ASTM A403 WP316L

ASTM A403 WP317

ASTM A403 WP321

ASTM A403 WP904L

T.S (MPA)

515 min

515 min

485min

515min

515 min

490 min

Y.S (MPA)

205 min

205 min

170min

205min

205 min

220 min

EL %

28 min

28 min

28min

28min

28 min

28 min


ASTM A403 VS A182


ASTM A403

ASTM A403 is mainly applicable to forged austenitic stainless steel butt-weld pipe fittings. These pipe fittings include elbows, tees, reducers, etc., which are widely used in pipeline systems in the chemical, petroleum, food processing and other industries, especially in situations where the good corrosion resistance, machinability and high temperature performance of austenitic stainless steel are required.


ASTM A182

ASTM A182 standard specification is for forged and rolled alloy and stainless steel pipe flanges, fittings, valves and parts for high temperature service. Common grades of alloy steel is Grade F5, F9, F11, F22, stainless steel F304/L and F316/L.

ASTM A182 has a wider range of applications, covering a variety of forged or rolled alloy and stainless steel pipe fittings, flanges and valves. It includes both austenitic stainless steel and other alloy materials, such as ferritic stainless steel, duplex stainless steel, nickel-based alloys, etc.

123

Referred Standards of ASTM A403 Material


• ASTM A351/A351M: Casting, Austenitic, for Pressure-Containing Parts Specifications
• ASTM A743/A743M: Specifications of Casting, Inron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant for General Application
• ASTM A744/A744M: For Server Service other than A743M (for the same material)
• ASTM A751: Test methods, Practices, and Terminology for Chemical Analysis of Steel Products.
• ASTM A960/A960M: Specifications for Common Requirements of Wrought Steel Pipe Fittings.
• E112: Test Methods for Determining Average Grain Size
• E165: Practice for Liquid Penetrant Examination for General Industry

• ASME B16.9: Factory-Made Wrought Steel Butt Weld Fittings
• ASME B16.11: Forged Steel Fittings, Socket Weld and Threaded

• MSS SP-25: Standard Marking System for Valves, Fittings, Flanges, and Unions
• MSS SP-43: Standard Practice for Light Weight Stainless Steel Butt Weld Fittings
• MSS SP-79: Socket Weld Reducer Inserts
• MSS SP-95: Swaged Nipples and Bull Plugs
• MSS SP-97 Integrally Reinforced Forged Branch Outlet Fittings of Socket Weld, Threaded

• AWS standard of A 5.4, A 5.9, A 5.11, A 5.14.


ASTM A403 Material Exported Countries


We Export ASTM A403 Material to Saudi Arabia, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen , Syria, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Cambodia, Argentina, Bolivia, Brazil, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States Of America, Canada, Mexico, Panama, Jamaica, Bahamas, Denmark, Norway, Germany, France,Italy, United Kingdom, Spain, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Finland, Ireland, Croatia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan,  Europe, Africa, Asia, North America, South America, Middle East.etc



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