Stamping 45 ° Bend_Shanghai Hongguan, Hongguan Special Materials, Hongguan Stainless Steel

Stamping 45 ° elbow

Stamped 45 ° elbow is a type of pipeline connector formed through stamping technology, widely used in industrial pipeline systems to achieve 45 ° directional deflection. It has the advantages of high dimensional accuracy, low flow resistance, and good strength.

1、 Product Features

High forming accuracy: using cold/hot stamping technology, the pipe size is stable, the ellipticity is ≤ 1%, and the wall thickness error is within ± 0.3mm.

High connection strength: suitable for welding, flange or socket connections, with strong pull-out resistance and can withstand high pressure and vibration loads in the system.

Low fluid resistance: The 45 ° angle design balances steering efficiency and compact space, especially suitable for slow turning scenarios in medium and low-pressure pipelines.

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, making them an ideal 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 19228-2016 "Stainless Steel Compression Fitting" (applicable to double compression structure)

Industry standards:

HG/T 2132-2021 "Glass lined 45 ° Bend"

International standards:

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

ISO 3419, DIN 2605 (German standard)

3、 Size specifications

Nominal diameter DN	Common outer diameter (mm)	Bending radius (LR=1.5D)	Angular tolerance
DN15	21.3 / 18	22.5 mm	±0.5°
DN25	33.7 / 32	38 mm	±0.5°
DN50	60.3 / 57	76 mm	±0.5°
DN100	114.3 / 108	152 mm	±0.5°
DN150	168.3 / 159	229 mm	±0.5°

Note: Series A refers to the American standard outer diameter (ASME), while Series B refers to the national/European standard outer diameter; The bending radius can be divided into long radius (LR=1.5D) and short radius (SR=1.0D), with LR being more conducive to reducing flow resistance.

4、 Pressure level

Nominal pressure range: PN1.0MPa~PN420MPa (Sch5s~XXS)

Common level correspondences:

Sch40: Suitable for PN1.6~2.5MPa (conventional industrial pipelines)

Sch80/XS: Suitable for PN4.0~10.0MPa (high-pressure steam, petroleum pipelines)

XXS: Suitable for environments with PN above 10.0MPa or extreme corrosion

Blasting pressure: ≥ 8.0MPa (double compression structure)

Working temperature range:

Carbon steel: -20 ℃~+232 ℃

Stainless steel: -40 ℃~+150 ℃