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  • Alloy 20 Hex Nipple

Alloy 20 Hex Nipple

  • product name:Hex Nipple
  • Size:1/4‘’~12''
  • Process:Forged
  • Standard:ASME B16.11

Corrosion resistant ASTM B462 Alloy 20 Carpenter 20Cb3 N08020 Hex Nipples Pipe Nipples Bosses as per BS3799


1. Corrosion resistant ASTM B462 Alloy 20 Carpenter 20Cb3 N08020 Hex Nipples Pipe Nipples Bosses as per BS3799


Alloy20 forged hex nipple, Alloy20 pipe nipples, Alloy20 bosses Manufacturer and Suppliers In China.


Alloy UNS N08020 Bosses Hex Nipple Pipe Nipple Exporter, Carpenter 20Cb3 bosses hex nipple pipe nipple Exporter in China.



2. Specification for Corrosion resistant ASTM B462 Alloy 20 Carpenter 20Cb3 N08020 Hex Nipples Pipe Nipples Bosses as per BS3799



Specifications ASTM B462 & ASME B462
Size 1/8” NB to 6” NB
Class Rating 3000LB 6000LB
Standards BS3799
Type Bosses Hex Nipple Pipe Nipple


3. Other Forged Pipe Fittings We have:

Standard Types Class Rating/Schedule Ends Size
ASME B16.11 90°Elbow/ 45°Elbow/ Tee/ Cross 2000LB Threaded 1/4''~4''
90°Elbow/ 45°Elbow/ Tee/ Cross/Pipe Cap/ Half Coupling/Full Coupling 3000LB/6000LB Threaded 1/4''~4''
Socket-welding 1/8''~4''
90°Elbow/ 45°Elbow/ Tee/ Cross/Half Coupling/Full Coupling 9000LB Socket-welding 1/2''~2''
Street Elbow 3000LB Threaded 1/8''~2''
6000LB 1/8''~1-1/2''
Lateral Tee 3000LB Socket-welding 1/4''~2''
6000LB 1/2''~1-1/2''
3000LB Threaded 3/8''~2‘’
6000LB 1/2''~2''
9000LB 1/2''~1-1/2''
Flush Bushing/Hex Bushing/Hex Plug/Round Plug/Square Plug 3000LB/6000LB Threaded 1/8''~4''
MSS SP79 Reducer Inserts 3000LB/6000LB/9000LB Socket-welding 3/8‘’x1/4''~2x1/2''
MSS SP83 Union 3000LB Socket-welding/Threaded 1/8''~3''
MSS SP95 Concentric/Eccentric Swaged Nipples   See Below Note1 1/4‘’~12''
Bull Plugs   Threaded 1/8''~12''
MSS SP97 Weldolet STD, XS, Sch 160/XXS Butt-welding 1/8''~36‘’ or larger
Sockolet 3000LB/6000LB Socket-welding 1/8''~6''
Threadolet 3000LB/6000LB Threaded 1/8''~6''
Nipolet XS/XXS Plain/Threaded 1/2''~2''
Elbolet 3000LB/6000LB Socket-welding/Threaded 1/4''~2''
STD/XS/160/XXS Butt-welding 1/4''~2-1/2'' or larger
Latrolet 3000LB/6000LB Socket-welding/Threaded 1/2''~2''
STD/XS/160/XXS Butt-welding 1/2''~2-1/2''
Flangolet,Nipolet,Sweepolet,etc. available as per client' demands.
BS3799 Hex Nipple 3000LB/6000LB Threaded 1/8''~2''x1/2''
Bosses 3000LB Threaded 1/8''~2''
6000LB Threaded 1/8''~4''
Pipe Nipple 40/STD/80/XS /160/XXS See Below Note1 1/8''~6''
Material Grade Nickel Alloy ASTM / ASME B/SB 564 UNS N02200 (NICKEL200), UNS N04400 (MONEL 400), UNS N08825(INCOLOY825), UNS N06600 (INCONEL 600), UNS 6601 (INCONEL 601), UNS N06625 (INCONEL 625), UNS N10276 ( HASTELLOY C 276), ASTM / ASME B/SB 160 UNS N02201 (NICKEL 201) ASTM / ASME B/SB 472 UNS N08020 ( ALLOY20 / 20CB3)
Copper Alloy ASTM / ASME B/SB 151 UNS C70600 ( CU -NI- 90/10), C 71500 ( CU -NI- 70/30)
Stainless Steel ASTM / ASME A/SA 182 F 304, 304L, 304H, 309H, 310H, 316, 316H, 316L, 316 LN, 317, 317L, 321, 321H, 347, 347 H.
Duplex and Super Duplex Steel ASTM / ASME A/SA 182 F44, F45, F51, F53, F55, F60, F61,F904L
Carbon Steel ASTM / ASME A/SA 105(N)
Low Temp Carbon Steel ASTM / ASME A/SA 350 LF 2.
High Yield Carbon Steel ASTM / ASME A/SA694 F52 F56 F60, F65, F70
Alloy Steel ASTM / ASME A182 GR F5, F9, F11, F12, F22, F91.
Titanium ASME ASTM SB/B381 Grade 2, Grade 5, Grade 7
Note1 PBE:Plain Both Ends BBE Bevel Both Ends TBE: Threaded Both Ends PSE:Plain Small End BSE:Bevel Small End TSE:Threaded Small End PLE:Plain Large End BLE:Bevel Large End TLE:Thread Large End
Note2 For the swage nipples,pipe nipples,the material can be referred to the pipe standard.
Note3 NPT(National Pipe Thread) FPT(Female Pipe Thread) MPT(Male Pipe Thread) BSPT(British Standard Pipe Thread)


4. Types of Corrosion resistant ASTM B462 Alloy 20 Carpenter 20Cb3 N08020 Hex Nipples Pipe Nipples Bosses as per BS3799


Alloy 20 bosses Alloy 20 bosses
Alloy 20 Carpenter Forged bosses
Alloy 20 bosses
Alloy UNS N08020 Forged bosses
Carpenter 20Cb3 bosses
ASTM B462 Alloy 20 Carpenter bosses
Alloy 20 Hex Nipples Alloy 20 Hex Nipples
Alloy 20 Carpenter Forged Hex Nipples
Alloy 20 Hex Nipples
Alloy UNS N08020 Forged Hex Nipples
Carpenter 20Cb3 Hex Nipples
ASTM B462 Alloy 20 Carpenter Hex Nipples
Alloy 20 Pipe Nipples Alloy 20 Pipe Nipples
Alloy 20 Carpenter Forged Pipe Nipples
Alloy 20 Pipe Nipples
Alloy UNS N08020 Forged Pipe Nipples
Carpenter 20Cb3 Pipe Nipples
ASTM B462 Alloy 20 Carpenter Pipe Nipples


5. About Carpenter 20Cb-3 N08020 Alloy 20



Alloy 20 is an iron-base, austenitic alloy with excellent corrosion resistance to a number of different media and proves to be useful in a number of applications such as flue-gas desulfurization, chemical processing, food processing and storage as well as pharmaceutical applications to name a few. Application of the alloy could result in real cost savings when carefully compared to higher-cost alloys to determine if the necessary resistance is obtained in the chosen media. Applications are limited to a maximum temperature of 1000°F per ASME.

Resistance to Corrosion

Resistance to sulfuric acid is particularly exceptional but the alloy shows useful resistance in phosphoric acid, nitric acid as well as in chloride environments. Alloy 20 is an excellent option when chloride stress corrosion cracking is an issue and resists pitting and crevice corrosion.

Fabrication and Heat Treatment

Alloy 20 can be formed by either hot-working or cold-work using traditional methods. Hot forged material should be heated between 2100°F and 2250°F with careful temperature control insuring that the material not fall below 1800°F prior to forging. After hot working, anneal the material by heating to 1725°F and 1850°F for a minimum of 30 minutes per inch of thickness followed by water quench.

When stress relieving is desired, heat to a temperature below 1000°F followed by water quench after the desired time at temperature
has been established. Annealing Alloy 20 should be between 1725°F and 1850°F for 30 minutes at temperature per inch of thickness. A lower hardness can be obtained by heating to 2100°F but his may have a negative effect on the stabilization of the alloy.

Welding Alloy 20 is commonly performed via, TIG, MIG as well as submerged arc welding (SAW) using either the matching filler metal, ER320LR for TIG and MIG and E320LR for SAW. When welding to dissimilar alloys such as 316 or higher alloys such as C276 and Alloy 22, AWS ERNiCrMo-3 can be used for TIG and MIG while using ENiCrMo-3 for SAW.


N08020, ASTM B473, ASME SB473, COLD DRAWN, HOT FINISHED, EN 10204-3.1, ASME SA 240, ASME SB 366, ASME SB 463, ASTM A 240, ASTM B 366, ASTM B 463,

Common Trade Names

INCOLOY® alloy 20, Carpenter® 20 alloy, 20CB-3®

INCOLOY® is a registered trademark of the Special Metals Corporation group of companies.

Carpenter® and 20CB-3® are registered trademarks of Carpenter.

Chemical Composition:

Element Nickel Chromium Molybdenum Copper Columbium + Tantalum Carbon Iron
Avg. Nominal % 32.5 - 35.0 19.0 - 21.0 2.0 - 3.0 3.0 - 4.0 1.00 Max 0.06 Max Balance

6. Corrosion resistant ASTM B462 Alloy 20 Carpenter 20Cb3 N08020 Hex Nipples Pipe Nipples Bosses as per BS3799 Packaging

We focus on every procedure to assure quality, the package we usually take is pack ASME B16.11 Forged Threaded ASTM B462 Alloy20 N08020 pipe nipples with environmental poly bags, and then in free fumigation wooden cases or wooden palte. Also can accept customized package such as OEM by negotiation. We offers just about everything to meet your Alloy20 Forged pipe nipples pack requirements. Lot of emphasis is placed on the packing and packaging. The Alloy20 swaged nipples are packed in wooden corrugated boxes foiled in plastic wraps and bubble wraps.


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