Stainless Steel 316H Fittings Manufacturer and Exporter

Stainless Steel 316H Fittings are fittings that are made of high carbon austenitic stainless steel and are used for high-temperature and high-pressure applications. SS 316H is a high carbon grade of SS 316 showing greater creep strength and mechanical properties at high temperature as compared with the standard SS 316 Fittings. These fittings are produced in conformance with ASTM A403 WP316H and ASTM A182 F316H standards to guarantee dependable use in the industry. Chemical composition is a combination of chromium, nickel and molybdenum, giving excellent corrosion and oxidation resistance also in aggressive environments. Characteristics of SS 316H Fittings are high mechanical strength with minimum tensile strength of 515 MPa and its application is very common in different refinery, heat exchanger, petrochemical plant and power plant. Solitaire Overseas offers Fittings of Stainless Steel 316H of international standard quality.

Table of Content

Specifications of Stainless Steel 316H Fittings

ParameterDetails
GradeStainless Steel 316H / S31609
DIN / Werkstoff Nr.1.4436 / 1.4435
EN DesignationX6CrNiMo17-12-2
Buttweld StandardASTM A403 WP316H
Forged StandardASTM A182 F316H
ASME EquivalentASME SA403 WP316H / SA182 F316H
Dimension Standard (BW)ASME B16.9 / MSS SP-43
Dimension Standard (Forged)ASME B16.11 / MSS SP-79
FormsElbow, Tee, Reducer, Cap, Stub End, Lap Joint, Cross, Coupling, Half-Coupling, Union, Plug, Bushing, Insert
Size Range (Buttweld)1/2" NB to 48" NB
Size Range (Forged)1/8" NPS to 4" NPS (Class 2000 / 3000 / 6000 / 9000)
Schedule RangeSCH 5S / 10S / 40S / 80S / 160 / XXS
End TypesBeveled (BE), Plain (PE), Threaded (TE)
Test CertificatesEN 10204 3.1 MTC (3.2 available on request)
Inspection & TestingThird-Party (SGS/TÜV/BV/Intertek) & PMI available on request
Surface FinishPickled, Annealed, Polished (2B, No.4, Mirror)
Material TraceabilityHeat number marking, lot traceability, EN 10204 3.1 MTC, PMI report and third-party inspection available on request.
Delivery TimeReady stock for common sizes; 4-8 weeks for custom orders

Chemical Composition of Stainless Steel 316H Fittings (ASTM A403 WP316H / UNS S31609)

GradeCMnSiPSCrMoNiFe
SS 316H0.10 max2.0 max0.75 max0.045 max0.030 max16.00 - 18.002.00 - 3.0010.00 - 14.0068.89 min

Mechanical Properties of Stainless Steel 316H Fittings

PropertyValue
Density8.0 g/cm³
Melting Point1400 °C (2550 °F)
Tensile Strength (min)75,000 Psi (515 MPa)
Yield Strength (0.2% Offset)30,000 Psi (205 MPa)
Elongation (min)35%

UNS S31609 Forged Fittings Equivalent Standards

GradeNorth America (UNS)USA (AISI)France (AFNOR)European (W.N. / EN)Japan (JIS)Russia (GOST)Italy (UNI)Austria (ONORM)
SS 316HS31609AISI 316HZ 6 CND 17-121.4919 / 1.4401*SUS 316H08KH16N11M3X6CrNiMo17-12X6CrNiMo17-12-2

Common Types of Stainless Steel 316H Pipe Fittings

UNS S31609 Seamless Buttwelding 45° and 90° Elbows

UNS S31609 Seamless Buttwelding 45° and 90° Elbows

UNS S31609 Reducing Outlet Tees

UNS S31609 Reducing Outlet Tees

UNS S31609 Equal Tee

UNS S31609 Equal Tee

UNS S31000 Long Radius Bend

UNS S31000 Long Radius Bend

UNS S31000 End Cap

UNS S31000 End Cap

UNS S31000 1D Elbow

UNS S31000 1D Elbow

Stainless Steel 316H Seamless Buttwelding 180° Returns

Stainless Steel 316H Seamless Buttwelding 180° Returns

Stainless Steel 316H Reducing Outlet Crosses

Stainless Steel 316H Reducing Outlet Crosses

Stainless Steel 316H Equal Cross

Stainless Steel 316H Equal Cross

SS 316H Straight Tees

SS 316H Straight Tees

SS 316H Reducing Cross

SS 316H Reducing Cross

SS 316H Buttweld Lateral Tee

SS 316H Buttweld Lateral Tee

SS 316H Buttweld 3D Elbow

SS 316H Buttweld 3D Elbow

SS 316H 90° Short Radius Elbow

SS 316H 90° Short Radius Elbow

SS 310 Butt weld Elbow

SS 310 Butt weld Elbow

ASTM A403 WP316H Welded Elbows

ASTM A403 WP316H Welded Elbows

ASTM A403 WP316H Short Stub End

ASTM A403 WP316H Short Stub End

ASTM A403 WP316H Reducing Tee

ASTM A403 WP316H Reducing Tee

ASTM A403 316H Buttweld Long Stub End

ASTM A403 316H Buttweld Long Stub End

ASTM A403 316H Buttweld Cap

ASTM A403 316H Buttweld Cap

ASTM A403 316H Buttweld 180° Short Radius Elbow

ASTM A403 316H Buttweld 180° Short Radius Elbow

ASTM A403 316H Bend

ASTM A403 316H Bend

ASTM A403 316H 5D Elbow

ASTM A403 316H 5D Elbow

ASME SA403 WP316H Seamless Stub End

ASME SA403 WP316H Seamless Stub End

ASME SA403 WP316H Seamless Concentric Reducer

ASME SA403 WP316H Seamless Concentric Reducer

ASME SA403 WP316H Seamless 45° Short Radius Elbow

ASME SA403 WP316H Seamless 45° Short Radius Elbow

ASME SA403 WP316H Piggable Bend

ASME SA403 WP316H Piggable Bend

ASME SA403 WP316H 1.5D Elbow

ASME SA403 WP316H 1.5D Elbow

A403 WP316H Straight Crosses

A403 WP316H Straight Crosses

A403 WP316H Reducers

A403 WP316H Reducers

A403 WP316H 45° Long Radius Elbow

A403 WP316H 45° Long Radius Elbow

316H Stainless Steel Lap Joint Stub Ends

316H Stainless Steel Lap Joint Stub Ends

316H Stainless Steel Eccentric Reducer

316H Stainless Steel Eccentric Reducer

316H Stainless Steel 180° Long Radius Elbow

316H Stainless Steel 180° Long Radius Elbow

Dimension Chart of SS 316H Fittings

NPSPipe O.D.Light WallSTDSCH 60SCH 80SCH 100SCH 120SCH 160
1/2"0.8400.0830.109-0.147--0.187*
1"1.3150.1090.133-0.179--0.250*
1-1/4"1.6600.1090.140-0.191---
2"2.8750.1200.203-0.276---
3"3.5000.1200.216-0.300---
3-1/2"4.0000.1200.226-0.318---
4"4.5000.1200.237-0.337-0.438-
8"8.6250.1480.3220.4060.5000.5940.7190.906
10"10.7500.1650.3650.5000.5940.7190.8441.125
16"16.0000.2500.3750.6560.8441.0311.2191.594
24"24.0000.2500.3750.9691.2191.5311.8122.344
30"30.0000.3120.375-----

A182 F316H Forged Fittings Pressure Rating Chart

NPSO.D.SCHWall100°F/ 200°F/ 300°F400°F500°F600°F650°F700°F750°F
1"1.315400.1332205204719021783174317031664
1"1.315800.1793061284126402475242023652310
1"1.3151600.2504493417038743632355234713390
1-1/2"1.900400.1451629151214041317128712581229
1-1/2"1.900800.2002303213819861862182117791738
1-1/2"1.9001600.2813362312028992717265725972536
2"2.375400.1541371127211821108108310591034
2"2.375800.2181985184317121605156915341498
2"2.3751600.3443283304728312654259525362477
3"3.500400.216130112081122105210281005982
3"3.500800.3001844171215901491145814251391
3"3.5001600.4382787258724032253220321532103
4"4.500400.23711021023950891871851831
4"4.500800.3371596148213771291126212331204
4"4.5001600.5312611242422522111206420171970
5"5.563400.258965896832780763746728
5"5.563800.3751428132512311154112911031077
5"5.5631600.6252474229621332000195519111866
6"6.625400.280877814756709693677661
6"6.625800.4321379128011891115109010651040
6"6.6251600.7192382221120541925188318401797
8"8.625400.322771716665623610596582
8"8.625800.500121811311050985963941919
8"8.6251600.9062298213319821858181717751734
10"10.750400.365699649603565553540528
10"10.750800.59411591075999937916895874
10"10.7501601.1252289212419741850180917681727

Wall Thickness Chart of Stainless Steel 316H Fittings

Size90° Elbow LR (A)90° Elbow SR45° Elbow B180° Return LR (O)180° Return SR (O)Tee / Cap C
1/2"1.50-0.623.00-1.00
3/4"1.12-0.752.25-1.12
1"1.50-0.883.00-1.50
1¼"1.88-1.003.75-1.88
1½"2.25-1.124.50-2.25
2"3.002.001.386.004.002.50
2½"3.752.501.757.505.003.00
3"4.503.002.009.006.003.38
3½"5.253.502.2510.507.003.75
4"6.004.002.5012.008.004.12
5"7.505.003.1215.0010.004.88
6"9.006.003.7518.0012.005.62
8"12.008.005.0024.0016.007.00
10"15.0010.006.2530.0020.008.50
12"18.0012.007.5036.0024.0010.00
14"21.0014.008.7542.0028.0011.00
16"24.0016.0010.0048.0032.0012.00
18"27.0018.0011.2554.0036.0013.50
20"30.0020.0012.5060.0040.0015.00
24"36.0024.0015.0072.0048.0017.00

Application and Industrial Uses of Stainless Steel 316H Fittings

  • Chemical Processing
  • Thermal Processing
  • Pulp & Paper Industry
  • Food Processing
  • Aerospace Industry
  • Glass Manufacturing
  • Petrochemical Industry
  • Power Generation
  • Furnace Components
  • Heat Treatment Equipment

Frequently Asked Questions

Stainless Steel 316H Fittings are high-temperature stainless steel pipe fittings with higher carbon content for improved strength and heat resistance. These fittings are commonly used in refineries, boilers, and chemical processing industries.

SS 316H fittings contain higher carbon content than standard SS 316 fittings, which provides better strength and creep resistance at elevated temperatures.

Yes, SS 316H fittings are specially designed for high-temperature and high-pressure applications due to their excellent heat resistance and mechanical strength.

The UNS number for Stainless Steel 316H is S31609.

Yes, SS 316H fittings offer excellent corrosion resistance and are widely used in chemical processing and petrochemical industries.

Molybdenum is added to improve corrosion resistance, especially against chlorides, chemicals, and aggressive industrial environments.

Share fitting type, size, schedule, standard, quantity, end connection, certification requirement and delivery location to receive an accurate quotation.

Yes. Solitaire Overseas can supply Stainless Steel 316H Fittings with EN 10204 3.1 MTC, PMI report and third-party inspection certificates on request.

Share your requirement for ASTM A403 WP316H buttweld fittings or ASTM A182 F316H forged fittings with size, schedule, fitting type, quantity and delivery location. Solitaire Overseas will confirm availability, price, MTC documentation and dispatch timeline.

Request SS 316H Fittings Price

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