Boiler Steel Pipes & Tubes

The products are widely used in the industries of petrochemical refinery, electric power, economizer, heat-exchanger, super-heater …etc.
Standard Grade
ASTM/ASME A179  A179
ASTM/ASME A192 A192
ASTM/ASME A210 Gr.A1, Gr.C
ASTM/ASME A209 T1, T1A
ASTM/ASME A213 T5, T9, T11, T12, T22, T91
ASTM/ASME A334 Gr.1, Gr.3, Gr.6

Dimenssion

– OD: 15-89 mm

– Wt: 1.5-10 mm

– Length: 3-28 m

Heat treatment methods applied in the boiler pipes:

Heat treatment is a method of changing the physical properties of high-pressure boiler pipe by heating and cooling. Heat treatment can improve the microstructure of high-pressure boiler pipe, so as to meet the required physical requirements. Toughness, hardness and wear resistance are obtained by heat treatment. In order to obtain these characteristics, it is necessary to adopt quenching, annealing, tempering and surface hardening.

Quenching:

Hardening, also called quenching, is that high pressure boiler pipe is heated evenly to the appropriate temperature, then quickly immerse in water or oil for rapid cooling, and cooling in the air or in the freezing zone. So that the high-pressure boiler pipe can obtain the required hardness.

Tempering:

High pressure boiler pipe will become brittle after hardening. And the stress caused by quenching can make the high-pressure boiler pipe tapped and broken. The tempering method can be used to eliminate brittleness. Although the hardness of high-pressure boiler pipe is lighter reduced, its the toughness can be increased to reduce the brittleness.

Annealing:

Annealing is the method to eliminate the internal stress of high-pressure boiler pipe. The annealing method is that the steel parts need to be heated to the critical temperature, then put in dry ash, lime, asbestos or closed in the furnace, then let it cooling slowly.

1 / 4
2 / 4
3 / 4
4 / 4

See also :

A106 Pipes

ASTM A106 High Temperature Pipe

A53 Pipes

ASTM A53 Welded And Seamless Pipes

API 5L Pipes

API 5L Seamless Pipes

Boiler steel Tubes

Boiler Steel Pipes & Tubes

Welded pipes

Welded Pipes (ERW, LSAW, SSAW)

JIS G3445

JIS G3445

JIS G3454, JIS G3455, JIS G3456

JIS G3454, JIS G3455, JIS G3456

JIS G3461, JIS G3462

JIS G3461, JIS G3462

High Pressure Boiler Tubes

High Pressure Boiler Tubes

ASTM A210 Boiler Tubes

ASTM A210 Boiler Tubes

ASTM A192 Boiler Tubes

ASTM A192 Boiler Tubes

ASTM A179 Boiler tubes

ASTM A179 Boiler tubes

ASTM A209 Boiler Tubes

ASTM A209 Boiler Tubes