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Hastelloy C276 Buttweld Fittings

Hastelloy C276 Buttweld Fittings
Hastelloy C276 Buttweld Fittings are widely used in demanding environments where both high temperatures and aggressive corrosion are concerns. This alloy is known for its excellent resistance thanks to its unique composition— a nickel-molybdenum-chromium superalloy stabilized with tungsten for extra durability. Designed to perform in harsh chemical processing and industrial settings, these fittings are manufactured to ASTM B366 specifications. Leading suppliers like Navstar Steel offer a complete range of Hastelloy C276 fittings in different types, sizes, and thread options, including seamless and buttweld forms.
 
As a manufacturer of ANSI B16.9 Hastelloy C276 Tee, ANSI B16.9 BW C276 End Cap, and other critical components, we provide quality solutions for demanding piping systems. Seamless fittings are valued for precision and smooth bore, making them ideal for instrumentation lines, while buttweld fittings are preferred for their high strength and reliable welded joints. The Alloy C276 Buttweld Pipe Elbow is often chosen over standard pipe bends because it provides a smoother directional change with controlled flow characteristics. Available in long radius and short radius forms (typically 45° and 90° angles), these elbows support nominal diameters from ½ inch up to 48 inches. Similarly, the Alloy C276 Reducer ensures smooth transitions between pipe sizes by reducing the diameter as needed.

Table of Contents

 Material & Standards

  • Specification: ASTM B366 / ASME SB366
  • Standards: ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
  • Types: Seamless, Welded, Fabricated
  • Sizes:
    • Seamless: ½″ – 10″
    • Welded: ½″ – 48″
  • Thickness/Schedules Available: 5s, 10s, 40s, 80s, STD, XS, 160, XXS, up to 50mm in welded fittings
  • NACE Compliance: MR 01-75
These fittings are manufactured to meet strict international standards, ensuring they perform reliably in corrosive environments where failure is not an option.
 

Hastelloy C276 Pipe Fittings Specification

Specification
ASTM B366 / B564, ASME SB 366 / SB564
Thickness
Sch 20, 10, 40, 60, STD, 80, 100, XS, 120, 160, 140, Sch XXS
Dimensions
ANSI/ASME B16.28, B16.9, MSS-SP-43.
Grades
Hastelloy B2 (UNS No. N10665), Hastelloy C22 (UNS No. N06022), Hastelloy C-4 (UNS No. N06455)
Size
1/2″upto 12″NB IN
Types
Seamless / Welded / ERW / Fabricated
 

ASTM B366 UNS N10276 Material Price

Products
Fitting Pipe Size
Price
HASTELLOY C-276- PIPES & PIPE FITTINGS REDUCER ECC HASTELLOY C-276 SIZE 4 X 3 X SCH40
3/4 in x 3/4 in
$52.17
HASTELLOY C-276- PIPES & PIPE FITTINGS FLANGE SIZE:1INCH,150# ,A105/LJ/SB-HAST-C276 STUB END (SHORT)
1 in x 1 in
$51.12
PIPE FITTING -0.750IN,CAP-BUTTWELD,HASTELLOY C- 276 PER ASTM B366 (QTY-5)
1-1/4 in x 1-1/4 in
$78.84
PIPE FITTINGS COUPLING HALF COUPLING HASTELLOY C THREADED 1 INCH 3000
1-1/2 in x 1-1/2 in
$105.66
EQUAL TEE 2X2X2 NB SCH 40 HASTELLOY C-276 SEAMLESS (NICKEL PIPES FITTING)
2-1/2 in x 2-1/2 in
$186.55
 

Werkstoff Nr. 2.4819 Tee Weight Chart

KG
LBS
NPS
0.59
1.3
2-1½
0.54
1.2
2-1¼
0.5
1.1
2-1
–
–
2-3/4
1.11
2.45
2½-2
1
2.2
2½-1½
0.95
2.1
2½-1¼
–
–
2½-1
1.88
4.15
3-2½
1.59
3.5
3-2
1.45
3.2
3-1½
–
–
3-1¼
2.72
6
3½-3
2.45
5.4
3½-2½
2.04
4.5
3½-2
–
–
3½-1½
–
–
3½-1¼
3.72
8.2
4-3½
3.4
7.5
4-3
4.76
10.5
4-2½
2.7
5.95
4-2
–
–
4-1½
5.94
13.1
5-4
5.53
12.2
5-3½
5.17
11.4
5-3
4.76
10.5
5-2½
–
–
5-2
9.39
20.7
6-5
8.35
18.4
6-4
7.85
17.3
6-3½
7.44
16.4
6-3
–
–
6-2½
17.78
39.2
8-6
16.1
35.5
8-5
14.7
32.4
8-4
–
–
8-3½
32.3
71.2
10-8
27.76
61.2
10-6
25.72
56.7
10-5
–
–
10-4
50.58
111.5
12-10
43.77
96.5
12-8
38.42
84.7
12-6
 

Hastelloy C22 Pipe Fittings Applications

  • Petrochemical Industries
  • Gas Processing Industries
  • Fertilizers Industries
  • Power Generation Industries
  • Chemical Industries
  • Oil & Gas Industries
  • Nuclear Industry
  • Pulp & Paper Industry

UNS N10276 Reducer Chemical Composition

Grade
Ni
C
Cr
Mn
Mo
Si
Fe
S
P
Co
C276
50.99 min*
0.010 max
14.50 – 16.50
1.00 max
15.00 – 17.00
0.08 max
4.00 – 7.00
0.03 max
0.04 max
2.50 max
C22
50.015 min*
0.010 max
20.00 – 22.50
0.50 max
12.50 – 14.50
0.08 max
2.00 – 6.00
0.02 max
0.02 max
2.50 max
B2
Bal
0.02 max
1.0 max
1.0 max
26 – 30
0.1 max
2.0 max
0.03 max
0.04 max
1.0 max

Hastelloy C Pipe Fittings Mechanical Properties

Element
Tensile Properties
Density
Yield Properties
Melting Point
Elongational
Hastelloy C276
MPa – 790,
 Psi – 1,15,000
8.089 g/cm3
MPa – 355, 
Psi – 52,000
1370 °C (2500 °F)
40 %
Hastelloy C22
Psi – 1,00,000 , MPa – 690
8.69 g/cm3
Psi – 45000 , MPa – 310
1399 °C (2550 °F)
45 %
Hastelloy B2
Psi – 1,10,000 , MPa – 760
9.2 g/cm3
Psi – 51000 , MPa – 350
1370 °C (2500 ºF )
40 %
 

2.4819 Pipe Reducing Tee Equivalent

STANDARD
GOST
EN
UNS
OR
WERKSTOFF NR.
JIS
Hastelloy C276
ХН65МВУ
NiMo16Cr15W
N10276
ЭП760
2.4819
NW 0276
Hastelloy C22
–
NiCr21Mo14W
N06022
–
2.4602
NW 6022
Hastelloy B2
–
–
N10665
–
2.4617
–

Hastelloy B3 Pipe Fittings Dimensional

Normal Size Of Pipe (NPS)
Outer Diameter (OD)
ANSI B16.9 45 Degree Elbow
ANSI B16.9 90 Degree Elbow
ANSI B16.9 180 Degree Elbow
(inches)
 
ANSI B16.9 Long Radius Elbow
ANSI B16.9 LR Elbow
ANSI B16.9 SR Elbow
ANSI B16.9 Long Radius Elbow
 
(Inches/ inch.)
(MM/ millimeter)
Face To Center
(Inche)
Radius
(Inche)
Face To Center
(Inche)
Face To Center
(Inche)
Back to face
(Inches)
Center to Center
(Inches)
1/2
0.0840
21.03
5/8
 
1 1/2
–
1 7/8
2
3/4
1.0050
26.07
7/16
 
1 1/8
–
1 11/16
2 1/4
1
1.0315
33.04
7/8
 
1 1/2
1
2 3/16
3
1 1/4
1.0660
42.02
1
 
1 7/8
1 1/4
2 3/4
3 3/4
1 1/2
1.0900
48.03
1 1/8
3
2 1/4
1 1/2
3 1/4
4 1/2
2
2.0375
60.03
1 3/8
4
3
2
4 3/16
6
2 1/2
2.0875
73.00
1 3/4
5
3 3/4
2 1/2
5 3/16
7 1/2
3
3.0500
88.09
2
6
4 1/2
3
6 1/4
9
3 1/2
4.0000
101.06
2 1/4
7
5 1/4
3 1/2
7 1/4
10 1/2
4
4.0500
114.03
2 1/2
8
6
4
8 1/4
12
5
5.0563
141.03
3 1/8
10
7 1/2
5
10 5/16
15
6
6.0625
168.03
3 3/4
12
9
6
12 5/16
18
8
8.0625
219.01
5
12
12
8
16 5/16
24
10
10.0750
273.01
6 1/4
15
15
10
20 3/8
30
12
12.0750
323.09
7 1/2
18
18
12
24 3/8
36
 
Normal Size Of Pipe (NPS)
Outer Diameter (OD
Buttweld End Cap
Buttweld Reducing Cross
Buttweld Straight Tee
Buttweld Long And Short Stub Ends
(Inches/ inch.)
(Inche)
(MM/ millimeter)
Length
Inche
Center to End
Inches
Center to End
Inches
Length Of Long
Inches
Lap Jpont Diameter
Inches
Length Of Short
Inches
1/2
0.0840
21.03
1
–
1
3
1 3/8
2
3/4
1.0050
26.07
1
–
1 1/8
3
1 11/16
2
1
1.0315
33.04
1 1/2
1 1/2
1 1/2
4
2
2
1 1/4
1.0660
42.02
1 1/2
1 7/8
1 7/8
4
2 1/2
2
1 1/2
1.0900
48.03
1 1/2
2 1/4
2 1/4
4
2 7/8
2
2
2.0375
60.03
1 1/2
2 1/2
2 1/2
6
3 5/8
2 1/2
2 1/2
2.0875
73.00
1 1/2
3
3
6
4 1/8
2 1/2
3
3.0500
88.09
2
3 3/8
3 3/8
6
5
2 1/2
3 1/2
4.0000
101.06
2 1/2
3 3/4
3 3/4
6
5 1/2
3
4
4.0500
114.03
2 1/2
4 1/8
4 1/8
6
6 3/16
3
5
5.0563
141.03
3
4 7/8
4 7/8
8
7 5/16
3
6
6.0625
168.03
3 1/2
5 5/8
5 5/8
8
8 1/2
3 1/2
8
8.0625
219.01
4
7
7
8
10 5/8
4
10
10.0750
273.01
5
8 1/2
8 1/2
10
12 3/4
5
12
12.0750
323.09
6
10
10
10
15
6
 
 
MSS-SP-43 Hastelloy C22 Welded Fitting Thickness

ANSI B16.28 Hastelloy C276 Elbow Inventory

Hastelloy C276 Pipe Fittings
Hastelloy B3 Pipe Fittings
ASTM B366 Hastelloy Fittings
Hastelloy Threaded Pipe Fittings
Hastelloy Forged Fittings
Astm B366 Uns N10276 Buttweld Elbow
Hastelloy Tube Fittings
Hastelloy Weld Fittings
Alloy C276 Pipe Bends
Nickel Alloy C276 Pipe Reducer
ASTM B366 UNS N10276 Material
N10276 L/r Elbows
Hastelloy C276 Fittings
ASTM B366 Hastelloy C276 Pipe Bends
Alloy C-276 Fittings
Socketweld 45 And 90 Degree Short Radius Elbow
Hastelloy C276 Buttweld Fittings
Hastelloy Alloy C276 Fittings
Hastelloy C276 Elbow
ASTM B366 Hastelloy Pipe Fittings
Werkstoff Nr. 2.4819 Tee
Hastelloy Buttweld Pipe Fittings
ASTM B366 Hastelloy C276 End Cap
MSS-SP-43 Hastelloy C22 Welded Fitting
UNS N10276 Reducer
ANSI B16.28 Hastelloy C276 Elbow
Nickel Alloy C276 Long Radius Elbow
Hastelloy butt weld fittings
Hastelloy C22 Pipe Fittings
Hastelloy Alloy Fittings
Hastelloy C Pipe Fittings
Hastelloy Alloy Pipe Fittings
 
Check and compare our quality and price of Hastelloy Fittings before buying any types of Fittings, Buy Alloy B3 Pipe Bend and ASTM B366 Alloy C-276 Fittings with EN 10204 3.1 Certificate.
 

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