Stamping tee is a type of pipe branch connection formed through stamping technology, which has the advantages of high structural strength, good dimensional accuracy, and low flow resistance. It is widely used in industrial pipeline systems such as petroleum, chemical, power, and construction.

1、 Product Features

One time molding, high strength: using hydraulic bulging or hot pressing forming processes, the seamless structure avoids weak points in the weld seam, the wall thickness at the connection between the main and branch pipes is uniformly increased, and the compressive and fatigue resistance performance is excellent.

High dimensional accuracy: Mold stamping ensures stable external dimensions, with an ellipticity of ≤ 1% and high port parallelism, making it easy to weld and connect on site.

Low fluid resistance: The T-shaped or Y-shaped structure design is reasonable, the inner wall transition is smooth, reducing turbulence and pressure drop, and suitable for transporting high velocity media.

Material diversity and adaptability support customization of various materials, including carbon steel (Q235, 20 #), alloy steel, austenitic stainless steel, duplex steel, titanium alloy, Hastelloy, Monel, Inconel, and special metal customization.

Stainless steel stamped fittings have excellent corrosion resistance and are widely used in industries such as chemical, food, and pharmaceutical; Carbon steel pipe fittings are economical and practical, and are the preferred choice for municipal engineering and ordinary industrial pipelines; Alloy steel pipe fittings can meet the requirements of special working conditions such as high temperature and high pressure.

2、 Execution standards

national standard:

GB/T 12459-2017 "Steel butt welded seamless fittings"

GB/T 13401-2017 "Welded Steel Pipe Fittings"

Industry standards:

SH/T 3408-2021 "Steel butt welded fittings for petrochemical industry"

HG/T 21631-2022 "Steel butt welded fittings (chemical industry)"

International standards:

ASME B16.9 (American standard butt welded pipe fittings)

DIN 2615 (German standard tee)

ISO 3419 (International General Specification for Welded Pipe Parts)

3、 Size specifications

 注：A系列为ASME外径（60.3mm等），B系列为国标/欧标外径（57mm等）；等径三通三口直径相同，异径三通支管小于主管。

四、压力等级

公称压力范围‌：PN1.0MPa ~ PN420MPa（Sch5s ~ XXS）

常见等级对应‌：

Sch40‌：适用于PN1.6~2.5MPa，常规给排水、暖通系统

Sch80/XS‌：适用于PN4.0~10.0MPa，高压蒸汽、石油管线

XXS‌：适用于PN10.0MPa以上或强腐蚀环境，如核电、深海管道

耐温范围‌：

碳钢：-20℃ ~ +400℃

不锈钢：-40℃ ~ +600℃

合金钢：可达+650℃（如15CrMo）

实际选型需结合设计压力、温度、介质特性，依据ASME B31.3或GB 50316进行强度校核。