stainless steel elbow

PRODUCT INTRODUCTION

Stainless steel elbows are primarily used as connecting pipe fittings in pipeline installations, joining two pipes with the same or different nominal diameters at bends to allow the pipeline to make a 90° turn. In piping systems, stainless steel elbows are fittings that change the direction of the pipeline. Common stainless steel elbow materials: 304, 316.

1. Classification by Manufacturing Standards

Stainless steel elbows can be divided into:

• National Standard (GB) stainless steel elbows

• Marine Standard stainless steel elbows

• Chemical Standard stainless steel elbows

• Water Standard stainless steel elbows

• American Standard (ANSI/ASME) stainless steel elbows

• German Standard (DIN) stainless steel elbows

• Japanese Standard (JIS) stainless steel elbows

• Russian Standard (GOST) stainless steel elbows

2. Classification by Production Methods

Stainless steel elbows can be categorized into:

• Push-formed

• Press-formed

• Forged

• Cast

(1) Butt Weld Elbows by Curvature Radius

• Long-radius butt weld elbows: Curvature radius equals 1.5 times the pipe outer diameter (R = 1.5D)

• Short-radius butt weld elbows: Curvature radius equals the pipe outer diameter (R = 1D)
  Note: If not otherwise specified, 1.5D elbows are typically selected.

(2) Classification by Pressure Rating

Approximately 17 pressure grades, aligned with U.S. pipe standards:
Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS, Sch80, Sch100, Sch120, Sch140, Sch160, XXS
Most commonly used: STD (Standard) and XS (Extra Strong)

(3) Classification by Elbow Angle

• 45° butt weld elbows

• 90° butt weld elbows

• 180° butt weld elbows

• Other non-standard angles (e.g., 60°)

APPLICATION AREA

Mechanical manufacturing, household appliances, pressure vessels, structural pipe fabrication, architectural decoration, chemical equipment, nuclear power, home appliances, catering kitchenware, elevators, solar energy, metal products, containers, automotive applications, precision electronics, rail transit, sanitary ware, food machinery.

PRODUCTION STRENGTH