MSS SP-95 | Concentric & Eccentric Swage Nipples | Threaded / Beveled / Socket-Weld Ends | NPS 1/8–12
Elite manufactures and supplies Swage Nipples for connecting different pipe sizes and transitioning between larger and smaller piping components. Swage nipples provide a gradual reduction in outside diameter and are available in concentric and eccentric configurations for a wide range of piping applications.
Swage nipples can be supplied with threaded, beveled, square-cut/socket-weld, grooved or combined end preparations, depending on the piping design. MSS SP-95 covers both concentric and eccentric swage nipples and includes sizes from NPS 1/8 through NPS 12.
Elite can supply swage nipples in carbon steel, alloy steel, stainless steel, duplex, super duplex, nickel alloys and other project-specified materials.
| Standard Swage Nipples | Configuration / Material Options |
|---|---|
| Forged Swage Nipple | Concentric Swage Nipple |
| MSS SP-95 Swage Nipple | Eccentric Swage Nipple |
| Threaded Swage Nipple | Threaded × Beveled Swage Nipple |
| Beveled Swage Nipple | Threaded × Socket-Weld Swage Nipple |
| Socket-Weld Swage Nipple | Carbon Steel Swage Nipple |
| Stainless Steel Swage Nipple | Alloy Steel Swage Nipple |
| Duplex Steel Swage Nipple | Super Duplex Swage Nipple |
| Copper-Nickel Swage Nipple | Nickel Alloy Swage Nipple |
| Monel Swage Nipple | Inconel Swage Nipple |
| Hastelloy Swage Nipple | Titanium Swage Nipple |
| Custom Swage Nipple | Special-Dimension Swage Nipple |
| Specification | Details | |
|---|---|---|
| Product Type | Swage Nipple | |
| Primary Standard | MSS SP-95 | |
| Size Range | NPS 1/8" to 12" | |
| Configuration | Concentric / Eccentric | |
| End Preparations | Threaded / Beveled / Square Cut / Grooved / Combination | |
| Thread Standard | ASME B1.20.1 | |
| Butt-Weld Preparation | ASME B16.25, where applicable | |
| Construction | Forged / Formed / Project Specified | |
| Large-End OD | Pipe OD / Project specified | |
| Small-End OD | Pipe OD / Project specified | |
| Wall Thickness | Pipe Schedule / Project specified | |
| Length | MSS SP-95 / Custom | |
| Surface Finish | Standard / Customer specified | |
| Heat Treatment | As required by material specification | |
| Marking | Size, material, heat number and required identification | |
| Documentation | MTC, COC and project-required quality documents | |
| Important: Swage nipples should not be described simply as an ASME B16.11 pressure-class fitting. The primary dimensional standard for swage nipples is MSS SP-95. MSS SP-95 covers threaded, beveled, square-cut and grooved end preparations and both concentric and eccentric configurations. | ||
| Custom Requirement | Details |
|---|---|
| Large-End Size | NPS / DN |
| Small-End Size | NPS / DN |
| Configuration | Concentric / Eccentric |
| End Preparation | Threaded / Beveled / Socket Weld / Grooved |
| Thread Type | NPT / Project specified |
| Material | Required material grade |
| Wall Thickness | Pipe Schedule / Custom |
| Overall Length | Standard / Custom |
| Heat Treatment | As required |
| NDE | Project specified |
| Inspection | ITP / Third-party requirements |
| Marking | Customer requirements |
| Documentation | MTC / COC / Inspection reports |
| Test / Examination | Availability |
|---|---|
| Visual Examination | Standard |
| Dimensional Examination | Standard |
| Chemical Analysis | Material dependent |
| Tensile & Yield Testing | Material dependent |
| Impact Testing | Where required |
| Hardness Testing | As specified |
| Heat Treatment Verification | Where applicable |
| PMI | As specified |
| Ultrasonic Testing (UT) | As specified |
| Magnetic Particle Testing (MT) | As specified |
| Liquid Penetrant Testing (PT) | As specified |
| Radiographic Testing (RT) | As specified |
| Corrosion Testing | Where applicable |
| Macro / Micro Examination | Where specified |
| Pressure / Proof Testing | Where specified |
| Third-Party Verification | Available |
| Document | Availability |
|---|---|
| Material Test Certificate (MTC) | Available |
| EN 10204 3.1 | Available |
| EN 10204 3.2 | Where specified |
| Certificate of Conformance | Available |
| Dimensional Inspection Report | Available |
| Chemical Analysis Report | Material dependent |
| Mechanical Test Report | Material dependent |
| Heat Treatment Records | Where applicable |
| PMI Report | As specified |
| NDE Reports | As specified |
| Quality Assurance Plan | Project specific |
| Inspection & Test Plan | Project specific |
| Certificate of Origin | Available |
| Packing List | Available |
| Commercial Invoice | Available |
| Fumigation Certificate | Where applicable |
| Material Traceability Records | Maintained |
| Third-Party Inspection | Available |
Stainless Steel
ASTM/ASME A182 F304/F304L, F316/F316L, F304H, F316H, F316Ti, F317/F317L, F321/F321H, F347/F347H and F904L, with other stainless grades available to project requirements.
Duplex & Super Duplex
ASTM/ASME A182 F51, F53 and F55, including UNS S31803, S32205, S32550, S32750, S32760 and S32950.
Carbon Steel
ASTM/ASME A105/A105N, A234 WPB, A350 LF2/LF3, A106 and other applicable carbon steel grades according to the manufacturing method and project specification.
Alloy Steel
ASTM/ASME A182 F1, F5, F9, F11, F12, F22, F23, F91 and F92, with other alloy grades available according to project requirements.
Copper-Nickel Alloys
ASTM/ASME SB111 and SB466, including UNS C70600 (90/10 Cu-Ni) and C71500 (70/30 Cu-Ni), where applicable.
Nickel Alloys
Nickel 200/201, Monel 400/K500, Alloy 20, Inconel 600/601/625/825 and Hastelloy C276, including applicable ASTM/ASME specifications.
Titanium & Special Alloys
Titanium and other specialty alloys can be supplied according to customer specifications, process conditions and project requirements.
Material selection is based on pressure, temperature, process fluid, corrosion conditions, mechanical requirements and applicable project specifications.
Concentric Swage Nipple
A concentric configuration in which the large and small ends share the same centerline. It provides a symmetrical transition between different pipe sizes.
Eccentric Swage Nipple
An eccentric configuration in which the centerlines are offset. It can be selected where maintaining a flat pipe elevation or preventing liquid accumulation is important.
Threaded Swage Nipple
A swage nipple with threaded end preparation, typically using NPT threads in accordance with ASME B1.20.1.
Threaded × Beveled Swage Nipple
One end is threaded while the opposite end is prepared for butt welding, allowing connection between threaded and butt-weld piping.
Threaded × Socket-Weld Swage Nipple
A combination-end configuration for connecting threaded piping to socket-weld piping where specified.
Custom Swage Nipple
Special reductions, lengths, wall thicknesses, end preparations, materials and dimensional requirements can be supplied according to customer drawings and project specifications.
Elite’s manufacturing process can include:
Swage Nipples are commonly used in:
For quotation, provide:
Large-End Size + Small-End Size + Concentric/Eccentric + End Preparation + Material + Schedule/Wall Thickness + Length + Quantity + Inspection Requirements
Example
4″ × 2″ Concentric Swage Nipple, MSS SP-95, ASTM A234 WPB, Large End Beveled × Small End NPT Threaded, Sch. 40, Project-Specified Length, EN 10204 3.1.
