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ASTM A234 WP9 Pipe Fittings

ASTM A234 Pipe Fittings

ASTM A234 WP Grades

ASTM A234 WPB Pipe Fittings

ASTM A234 WP9 Pipe Fittings Specifications

Material Grades

  • ASTM A234 WP9
  • ASME SA234 WP9
  • Alloy Steel WP9
  • Chrome Moly Steel

Fitting Types

  • Elbow
  • Tee
  • Reducer
  • End Cap
  • Stub End
  • Bend
  • Adapter
  • Wye
  • Cross

Manufacturing Method

  • Seamless
  • Welded
  • Butt Weld
  • Hot Formed
  • Cold Formed

Testing

  • Visual Inspection
  • Dimensional Inspection
  • Material Testing
  • NDT Testing
  • Hydrostatic Testing

Manufacturing Standards

  • ANSI B16.9
  • ASME B16.28
  • MSS-SP-43 Type A
  • MSS-SP-43 Type B
  • JIS B2312
  • JIS B2313

Sizes & Pressure

  • Size: NPS 1/2" to 48"
  • Schedule: 5S to 160
  • Pressure Class: 150# to 2500#
  • JIS, NPT, ISO, DIN, EN

ASTM A234 WP9 Pipe Fittings Dimensions Chart

NPS O.D. (mm) O.D. (Inch) 90° LR Elbow 90° SR Elbow 45° Elbow 180° LR Radius 180° LR Center to Center 180° LR Back to Face
1/2 21.3 0.840 1 1/2 – 5/8 – 2 1 7/8
3/4 26.7 1.050 1 1/8 – 7/16 – 2 1/4 1 11/16
1 33.4 1.315 1 1/2 1 7/8 – 3 2 3/16
1 1/4 42.2 1.660 1 7/8 1 1/4 1 – 3 3/4 2 3/4
1 1/2 48.3 1.900 2 1/4 1 1/2 1 1/8 3 4 1/2 3 1/4
2 60.3 2.375 3 2 1 3/8 4 6 4 3/16
2 1/2 73.0 2.875 3 3/4 2 1/2 1 3/4 5 7 1/2 5 3/16
3 88.9 3.500 4 1/2 3 2 6 9 6 1/4
3 1/2 101.6 4.000 5 1/4 3 1/2 2 1/4 7 10 1/2 7 1/4
4 114.3 4.500 6 4 2 1/2 8 12 8 1/4
5 141.3 5.563 7 1/2 5 3 1/8 10 15 10 5/16
6 168.3 6.625 9 6 3 3/4 12 18 12 5/16
8 219.1 8.625 12 8 5 12 24 16 5/16
10 273.1 10.750 15 10 6 1/4 15 30 20 3/8
12 323.9 12.750 18 12 7 1/2 18 36 24 3/8

ASTM A234 WP9 Pipe Fittings Additional Dimensions

NPS O.D. (mm) Pipe End Cap (Inch) Straight Tee Length (Inch) Straight Cross Center to End (Inch) Stub End Lap Diameter (Inch) Long Stub End (Inch) Short Stub End (Inch)
1/2 21.3 0.840 1 1 – 1 3/8 3
3/4 26.7 1.050 1 1/8 – 1 11/16 3 2
1 33.4 1.315 1 1/2 1 1/2 2 4 2
1 1/4 42.2 1.660 1 7/8 1 7/8 2 1/2 4 2
1 1/2 48.3 1.900 2 1/4 2 1/4 2 7/8 4 2
2 60.3 2.375 2 1/2 2 1/2 3 5/8 6 2 1/2
2 1/2 73.0 2.875 3 3 4 1/8 6 2 1/2
3 88.9 3.500 3 3/8 3 3/8 5 6 2 1/2
4 114.3 4.500 4 1/8 4 1/8 6 3/16 6 3
5 141.3 5.563 4 7/8 4 7/8 7 5/16 8 3
6 168.3 6.625 5 5/8 5 5/8 8 1/2 8 3 1/2
8 219.1 8.625 7 7 10 5/8 8 4
10 273.1 10.750 8 1/2 8 1/2 12 3/4 10 5
12 323.9 12.750 10 10 15 10 6

ASTM A234 WP9 Pipe Fittings Weight Chart

DN Schedule 10S Schedule 40S Schedule 80S
90° Elbow (kg) 45° Elbow (kg) Equal Tee (kg) 90° Elbow (kg) 45° Elbow (kg) Equal Tee (kg) 90° Elbow (kg) 45° Elbow (kg) Equal Tee (kg)
8 0.020.010.03 0.030.020.06 0.040.030.07
10 0.030.020.05 0.030.020.03 0.060.040.09
15 0.060.030.09 0.080.040.10 0.100.050.14
20 0.070.030.13 0.080.040.17 0.110.050.20
25 0.140.080.28 0.150.110.29 0.220.140.38
32 0.230.110.49 0.260.170.59 0.400.230.68
40 0.300.170.68 0.400.230.86 0.510.291.02
50 0.500.250.85 0.700.401.28 0.910.591.59
65 0.850.481.41 1.400.772.19 1.810.993.13
80 1.250.631.77 2.201.083.31 2.971.504.45
90 1.700.752.67 2.831.424.08 4.002.005.44
100 2.101.083.46 4.472.095.27 6.182.817.71
150 5.452.728.07 10.895.4410.99 16.328.1613.61
200 10.205.3315.65 21.5410.7720.91 33.1116.5628.12
250 18.159.7526.46 38.5619.2735.38 51.7125.8649.90
300 25.8013.6239.46 59.4229.7162.14 79.3839.6983.91

ASTM A234 WP9 Reducer & Tee Weight Chart

DN Schedule 10S Schedule 40S Schedule 80S
Size Concentric Reducer Eccentric Reducer Reducing Tee Concentric Reducer Eccentric Reducer Reducing Tee Concentric Reducer Eccentric Reducer Reducing Tee
40 × 25 0.190.190.60 0.260.260.76 0.340.340.90
50 × 25 0.280.280.73 0.400.401.10 0.540.541.37
50 × 40 0.310.310.76 0.450.451.15 0.590.591.43
80 × 50 0.550.551.56 1.001.002.91 1.791.793.91
100 × 50 0.780.782.94 1.501.504.48 1.951.956.55
100 × 80 0.870.873.04 1.741.744.64 2.332.336.79
150 × 80 1.821.826.86 3.953.959.68 5.515.5111.57
150 × 100 1.961.967.10 4.074.0711.94 5.965.9611.97
200 × 100 3.013.0113.46 6.556.5517.98 9.239.2324.18
200 × 150 3.193.1914.08 6.746.7418.82 10.1210.1225.31

Chemical Composition

Carbon (C)
0.15% Max
Manganese (Mn)
0.60% Max
Silicon (Si)
1.00% Max
Sulfur (S)
0.03% Max
Phosphorus (P)
0.03% Max
Chromium (Cr)
8.00–10.00%
Molybdenum (Mo)
0.90–1.10%

Equivalent Grade

ASTM / ASME ASTM A234 WP9 / ASME SA234 WP9
Pipe Equivalent ASTM A335 P9
Forging / Flange Equivalent ASTM A182 F9
Valve Equivalent ASTM A217 WC9

Mechanical Performance

380
MPa Min
Tensile Strength
585
MPa Min
Yield Strength
30
% Min
Elongation
150–2500
Class
Pressure Class
550
°F / 288°C
Maximum Listed Temperature
1/2–48
Inch
Size Range


MANUFACTURING

Forging Process

Each flange follows a rigorous 8-step forging and quality-control process to ensure conformance with ASTM A182 and ASME standards.

1

Material Selection

Prime 304 stainless steel billet sourced and certified.

2

Billet Preparation

Heat to 1100°C – 1250°C for optimal forgeability.

3

Forging

Shape billet into flange geometry under controlled pressure.

4

Heat Treatment

Solution anneal at 1040°C – 1120°C, then quench.

5

Machining & Finishing

CNC machining, drilling, and surface finishing.

6

Testing & Inspection

Tensile, hardness, PMI, visual and impact tests performed.