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ASTM A234 WPB 90 Degree Elbow Order

Views: 4     Author: Site Editor     Publish Time: 2025-06-13      Origin: Site

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On May 15, 2025, an old customer from Singapore sent us an inquiry for ASTM A234 WPB 90 degree elbow. As a long-term trusted partner, we are well aware of the customer's stringent requirements for product quality and delivery cycle. The ASTM A234 WPB 90-degree elbows for this inquiry are indispensable key components in pipeline systems in industries such as oil, gas, and chemicals. The WPB grade indicates that these elbows are made of high-quality carbon steel, have excellent strength, pressure resistance, and weldability, and can withstand the test of complex working conditions such as high pressure and high temperature.


From the moment we received the inquiry, our sales, technical, and production teams worked closely together and quickly invested in product confirmation, production scheduling, and quality control. We strictly follow the ASTM A234 standard to ensure that every elbow meets the highest industry standards from raw material procurement to forging, forming, heat treatment, surface treatment, and final testing. Contact us


Inspection of 90 Degree Elbow


· Outside Diameter (O.D.): Measure at multiple points on both ends of the elbow to ensure that it is within the tolerance range specified in the standard.


· Wall Thickness (W.T.): Measure at multiple points on both ends of the elbow and the elbow body (especially on the outside and inside of the elbow, where the wall thickness may change during the forming process) to ensure that it is not less than the minimum allowable wall thickness.


· Tolerance Check: Compare all measured data with the corresponding tolerances specified in ASME B16.9 or other specified standards. ASME B16.9 clearly gives the allowed positive and negative deviations for each dimension.


· Marking Check: Check whether the markings of the elbow (such as material grade, manufacturer name or logo, furnace number, size, wall thickness grade, etc.) are clear, complete and meet the requirements of the standard.


ASTM A234 WPB 90 Degree Elbow

Outside Diameter

ASTM A234 WPB 90 Degree Elbow

Marking

ASTM A234 WPB 90 Degree Elbow

Wall Thickness


Common Packaging Methods


1. Wooden Cases

Suitable for larger, heavier or more numerous elbows, providing sturdy protection and effectively resisting external impact.


2. Wooden Pallets:

For small and medium-sized elbows, they can be neatly stacked on wooden pallets and then fixed with steel straps, strapping tape or wrapping film. Convenient for forklift handling and stacking.


3. Woven Bags / Gunny Bags:

For small, light or fewer elbows, sturdy woven bags or gunny bags are sometimes used for bundling and packaging.


4. Bubble Wrap / Plastic Film / Foam:

These materials are often used for additional protection of the elbow surface to prevent scratches, wear and moisture intrusion. Before packing or palletizing, elbows may be wrapped with these materials individually or in batches.


Special Packaging - Felt


Additional shock absorption and cushioning: The soft material of felt can effectively absorb shock and vibration, reducing the bumps and scratches caused by the elbows during transportation.


Prevent surface damage: For elbows with special surface treatment (such as polishing, painting, coating), felt can provide a soft barrier to avoid scratches caused by direct friction with other objects or packaging materials.


Dust and moisture resistance (auxiliary): Although the main function is to prevent collision, felt can also block dust to a certain extent, and if combined with a waterproof film, it can also assist in moisture resistance.


ASTM A234 WPB 90 Degree Elbow


Specification of ASME B16.9 90 Degree Elbow


Size Range

1/2" - 80" / DN15 - 2000

Thickness Schedule

SCH 10, 20, 40, STD, XS, 80, 100, 120, 140, 160, XXS

Standard

ANSI / ASME B16.9, MSS SP 43, JIS B2311/2312/2313, EN10253

Carbon Steel Grades

ASTM A234 WPB/WPC, A420 WPL6, A860 WPHY 42 / 46 / 56 / 60 / 65


90 Degree Elbow: Shape and Function


Long Radius (LR) 90 Degree Elbow: The center-to-end dimension (radius of curvature) is 1.5 times the nominal pipe size (1.5D). This is the most common type as it offers less pressure drop and turbulence due to a gentler change in direction, making it suitable for systems where flow efficiency is critical.


Short Radius (SR) 90 Degree Elbow: The center-to-end dimension is 1 times the nominal pipe size (1D). These are used in tight spaces where flow efficiency is less critical, or where space constraints dictate.


ASTM A234 WPB Elbow Chemical Composition


CHEMICAL

LIMITS

C

Mn

P

S

Si

Cr

Mo

Ni

Cu

Cb

V

ASTM A234 WPB

MIN


0.29



0.10







MAX

0.30

1.06

0.050

0.058


0.40

0.15

0.40

0.40

/

0.08


ASTM A234 WPB Elbow Mechanical Property


MATERIAL

T.S (MPA)

Y.S (MPA)

EL %

R/A %

HARDNESS

ASTM A234 WPB

415 min

240 min

22 min

30 min

197 max


90 Degree Elbow Dimensions


DN


NPS


OD


A

LR

SR

15

1/2

21.3

38

25

20

3/4

26.7

38

25

25

1

33.4

38

25

32

1-1/4

42.2

48

32

40

1-1/2

48.3

57

38

50

2

60.3

76

51

65

2-1/2

73.0

95

64

80

3

88.9

114

76

90

3-1/2

101.6

133

89

100

4

114.3

152

102

125

5

141.3

190

127

150

6

168.3

229

152

200

8

219.1

305

203

250

10

273.0

381

254

300

12

323.8

457

305

350

14

355.6

533

356

550

22

559.0

838

559

600

24

610.0

914

610

650

26

660.0

991

660

700

28

711.0

1067

711

750

30

762.0

1143

762

800

32

813.0

1219

813

850

34

864.0

1295

864

900

36

914.0

1372

914

950

38

965.0

1447

965

1000

40

1016.0

1524

1016

1050

42

1067.0

1600

1067

1100

44

1118.0

1676

1118

1150

46

1168.0

1753

1168

1200

48

1219.0

1829

1219

1300

52

1321.0

1981

1321

1400

56

1422.0

2134

1422

1500

60

1524.0

2286

1524

1600

64

1626.0

2438

1626

1700

68

1727.0

2591

1727

1800

72

1829.0

2743

1829

1900

76

1930.0

2896

1930

2000

80

2032.0

3048

2032


Applications


Oil & Gas: Refineries, pipelines, offshore platforms for crude oil, natural gas, and refined products.

Chemical & Petrochemical: Chemical processing plants, where moderate to high temperatures and pressures are common.

Power Generation: Thermal power plants, nuclear power plants for steam, water, and fuel lines.

Water Treatment: Industrial and municipal water treatment facilities.

Shipbuilding: Various piping systems on marine vessels.

Construction: Commercial and industrial building projects.



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