ASME SA105 Forged Nozzles for Pressure vessle

We are a professional manufacturer of ASME SA105 Forged Nozzles for pressure vessel in China.

A nozzle is often a pipe or tube of varying cross sectional area, and it can be used to direct or modify the flow of a fluid (liquid or gas). Nozzles are frequently used to control the rate of flow, speed, direction, mass, shape, and/or the pressure of the stream that emerges from them. In a nozzle, the velocity of fluid increases at the expense of its pressure energy.

Forged nozzles are integral components in pressure vessels, serving as critical connection points for the ingress and egress of fluids, as well as for instrumentation and maintenance access

What is ASME SA105?

ASME SA105 is the ASME Boiler and Pressure Vessel Code (BPVC) version of ASTM A105

ASME SA105 is a specification covering forged carbon steel piping components, including flanges, fittings, valves, and forged nozzles, designed for ambient and high-temperature service in pressure systems.

SA105 Forged Nozzles Specification

  • Material: Carbon Steel ASTM A105 / ASME SA105

  • Type: Forged Nozzle / Welded-on Nozzle / Long-Weld Neck Nozzle / Hubbed Nozzle

  • Manufacturing Process: Open-die forging or closed-die forging + CNC machining

  • Heat Treatment: Normalized,

Chemical Composition Limits of SA105 (%):

Element Composition (%)
Carbon (C) ≤ 0.35
Manganese (Mn) 0.60–1.05
Phosphorus (P) ≤ 0.035
Sulfur (S) ≤ 0.040
Silicon (Si) 0.10–0.35
Copper (Cu)* ≤ 0.40
Nickel (Ni)* ≤ 0.40
Chromium (Cr)* ≤ 0.30
Molybdenum (Mo)* ≤ 0.12

SA 105 Mechanical Properties (Minimum Requirements):

Property Value
Tensile Strength 485 MPa (70 ksi) min
Yield Strength 250 MPa (36 ksi) min
Elongation in 2″ ≥ 22%
Reduction of Area ≥ 30%
Hardness ≤ 187 HBW (or 90 HRB)

Other MATERIAL AVAILABLE for Nozzles

CARBON STELL       :  * ASTM/ASME A/SA105, A/SA105N

                           * ASTM/ASME A/SA350 Gr. LF2 (Class 1 & 2), LF3, LF6

                                       * ASTM/ASME A/SA694 F42, F46, F48, F50, F52, F56, F60, F65  

STAINLESS STEE     :  * ASTM/ASME A/SA182 F304, F304L, F304H, F316, F316L, F316H,

                                          F321, F310, 904L

DUPLEX&ALLOY      :  * ASTM/ASME A/SA182 F51, F53, F55, F60

                                          F1, F5, F7, F9, F11, F12, F22, F44

ASME SA350 LF2 Forged Nozzles

Application of SA105 Forged Nozzles 

  • Cryogenic and Low-Temperature Systems:
    • LNG plants, cryogenic vessels, and refrigeration systems.
  • Oil & Gas Industry:
    • Pressure vessels and piping systems operating in Arctic or sub-zero climates.
  • Chemical & Petrochemical Plants:
    • Used in reactors, separators, and heat exchangers for low-temperature processes.
  • Power Generation:
    • Utilized in steam and water systems under low-temperature conditions.

SA 105 Nozzle Certification & Inspection:

  • Supplied with EN 10204 3.1 or 3.2 certificates

  • NDT (UT, RT, MPI), chemical analysis, and mechanical testing as per client request

  • Compliant with ASME Section II, Section VIII, and B16.5/B16.11 where applicable