Short Description

Model No.: WP321-Seamless-90-Degree-LR-Elbow-DN450-SCH20

China Elbow Manufacturer www.steeljrv.com offers ASME B16.9 ASTM A403 WP321 Seamless 90 Degree LR Elbow, DN450, SCH20.

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Key Specifications / Features

Type: 321 Seamless 90 Degree LR Elbow
Material: WNR 1.4541 (Grade 321/UNS S32100)
Degree: 90 Degree
Size: 18 Inch (DN450)
THK: SCH20
Ends: BW

Composition

Typical compositional ranges for grade 321 stainless sheets of steel are given in table 1.

Table 1. Composition ranges for 321-grade stainless steel

Grade   C Mn Si P S Cr Mo Ni N Other
321 min.
max

0.08
2.00 0.75 0.045 0.030 17.0
19.0
9.0
12.0
0.10 Ti=5(C+N)
0.70
321H min.
max
0.04
0.10
2.00 0.75 0.045 0.030 17.0
19.0
9.0
12.0
Ti=4(C+N)
0.70
347 min.
max
0.08 2.00 0.75 0.045 0.030 17.0
19.0
9.0
13.0
Nb=10(C+N)
1.0

Mechanical Properties

Typical mechanical properties for grade 321 stainless sheets of steel are given in table 2.

Table 2. Mechanical properties of 321-grade stainless steel

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50 mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
321 515 205 40 95 217
321H 515 205 40 95 217
347 515 205 40 92 201

Physical Properties

Typical physical properties for annealed grade 321 stainless sheets of steel are given in table 3.

Table 3. Physical properties of 321-grade stainless steel in the annealed condition

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (μm/m/°C) Thermal Conductivity (W/m.K) Specific Heat 0-100 °C (J/kg.K) Electrical Resistivity (nΩ.m)
0-100 °C 0-315 °C 0-538 °C at 100 °C at 500 °C
321 8027 193 16.6 17.2 18.6 16.1 22.2 500 720

Grade Specification Comparison

Table 4. Grade specifications for 321-grade stainless steel

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
321 S32100 321S31 58B, 58C 1.4541 X6CrNiTi18-10 2337 SUS 321
321H S32109 321S51 1.4878 X10CrNiTi18-10 SUS 321H
347 S34700 347S31 58G 1.4550 X6CrNiNb18-10 2338 SUS 347

2018581714532434512 - ASME B16.9 ASTM A403 WP321 Seamless 90 Degree LR Elbow DN450 SCH20

Dimensions Butt Weld Elbows 45°-90° LR and 3D ASME B16.9

NPS O.D. 90° 45° 90° 45°
D Long Rad Long Rad 3D 3D
Center to End Center to End Center to End Center to End
A B A B
18 457 686 286 1372 568
20 508 762 318 1524 632
22 559 838 343 1676 694
24 610 914 381 1829 757
26 660 991 406 1981 821
28 711 1067 438 2134 883
30 762 1143 470 2286 946
32 813 1219 502 2438 1010
34 864 1295 533 2591 1073
36 914 1372 565 2743 1135
38 965 1448 600 2896 1200
40 1016 1524 632 3048 1264
42 1067 1600 660 3200 1326
44 1118 1676 695 3353 1389
46 1168 1753 727 3505 1453
48 1219 1829 759 3658 1516

Dimensions are in millimeters unless otherwise indicated. Wall thickness (t) must be specified by customer.

DIMENSIONAL TOLERANCES OF BUTT WELD ELBOWS – 45° AND 90° – LR AND 3D – ASME B16.9

Nominal Pipe Size 1/2 to 2½ 3 to 3½ 4 5 to 8
Outside Diameter

at Bevel (D)

+ 1.6

– 0.8

1.6 1.6
+ 2.4

– 1.6

Inside Diameter at End 0.8 1.6 1.6 1.6
Center to End LR (A/B) 2 2 2 2
Center to End 3D (A/B) 3 3 3 3
Nominal Pipe Size 10 to 18 20 to 24 26 to 30 32 to 48
Outside Diameter

at Bevel (D)

+ 4

– 3.2

+ 6.4

– 4.8

+ 6.4

– 4.8

+ 6.4

– 4.8

Inside Diameter at End 3.2 4.8
+ 6.4

– 4.8

+ 6.4

– 4.8

Center to End LR (A/B) 2 2 3 5
Center to End 3D (A/B) 3 3 6 6
Wall Thickness (t) Not less than 87.5% of Nominal Wall Thickness
Dimensional tolerances are in millimeters unless otherwise indicated and are equal ± except as noted.
Note:

MSS SP-43 only covers stainless steel buttweld fittings made for use with Schedule 5S and 10S pipe and Stub Ends suitable for use with Schedule 40S pipe, as defined in ASME B36.19. The dimensions and dimensional tolerances defined in MSS SP-43 are substantially the same as those in ASME B16.9 specifications from NPS 1/2 – NPS 24. Except with regard to the outside diameter at the bevel.

elbows9045 - ASME B16.9 ASTM A403 WP321 Seamless 90 Degree LR Elbow DN450 SCH20

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ASME B16.9 ASTM A403 WP321 Seamless 90 Degree LR Elbow DN450 SCH20
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USD 1-9999
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