JIS G3463 stainless steel boiler and heat exchanger tubes

JIS G3463 Stainless Steel Boiler and Heat Exchanger Tubes

JIS G3463 stainless steel boiler tubes are widely used in heat exchange systems within industrial applications. These tubes are designed for both internal and external heat transfer, making them ideal for use in boilers, superheaters, condensers, and other heat exchanger components across chemical and petrochemical industries.

Dimensions:
External Diameter: 19.05 mm – 168.3 mm
Wall Thickness: 2.0 mm – 14 mm
Length: Up to 19,000 mm

These tubes can be manufactured using either seamless or welded methods, such as automatic arc welding, laser welding, or resistance welding. However, they are not recommended for use in heating furnace applications due to their specific design and material properties.

Chemical Composition of JIS G3463 Steel Tubes:

Grade Chemical Composition %
C Si Mn P S Ni Cr Mo
SUS 304TB 0.08 max. 1.00 max. 2.00 max. 0.040 max. 0.030 max. 8.00–11.00 18.00–20.00 -
SUS 304HTB 0.04–0.10 0.75 max. 2.00 max. 0.040 max. 0.030 max. 8.00–11.00 18.00–20.00 -
SUS 304LTB 0.030 max. 1.00 max. 2.00 max. 0.040 max. 0.030 max. 9.00–13.00 18.00–20.00 -
SUS 309STB 0.15 max. 1.00 max. 2.00 max. 0.040 max. 0.030 max. 12.00–15.00 22.00–24.00 -
SUS 310TB 0.08 max 1.00 max. 2.00 max. 0.040 max. 0.030 max. 12.00–15.00 22.00–24.00 -
SUS 310STB 0.15 max. 1.50 max. 2.00 max. 0.040 max. 0.030 max. 19.00–22.00 24.00–26.00 -
SUS 316TB 0.08 max. 1.50 max. 2.00 max. 0.040 max. 0.030 max. 19.00–22.00 24.00–26.00 -
SUS 316HTB 0.08 max. 1.00 max. 2.00 max. 0.040 max. 0.030 max. 10.00–14.00 16.00–18.00 2.00–3.00
SUS 316LTB 0.04–0.10 0.75 max. 2.00 max. 0.040 max. 0.030 max. 11.00–14.00 16.00–18.00 2.00–3.00
SUS 316TiTB 0.030 max. 1.00 max. 2.00 max. 0.040 max. 0.030 max. 12.00–16.00 16.00–18.00 2.00–3.00

Mechanical Properties of JIS G3463 Steel Tubes:

Symbol of Grade Mechanical Properties:
Tensile Strength kgf/mm² (N/mm²) Proof Stress kgf/mm² (N/mm²) Elongation %
20 mm min. in outside diameter 10 mm or over to and excl. 20 mm in outside diameter Under 10 mm in outside diameter
No.11 test piece / No.12 test piece No.11 test piece No.11 test piece
SUS304TB 53 {520} min 21 {206} min. 35 min. 30 min. 27 min.
SUS304HTB 53 {520} min 21 {206} min. 35 min. 30 min. 27 min.
SUS304LTB 49 {481} min 18 {177} min. 35 min. 30 min. 27 min.
SUS309TB 53 {520} min 21 {206} min 35 min. 30 min. 27 min.
SUS309STB 53 {520} min 21 {206} min 35 min. 30 min. 27 min.
SUS310TB 53 {520} min 21 {206} min 35 min. 30 min. 27 min.
SUS310STB 53 {520} min 21 {206} min 35 min. 30 min. 27 min.
SUS316TB 53 {520} min 21 {206} min 35 min. 30 min. 27 min.
SUS316HTB 53 {520} min 21 {206} min 35 min. 30 min. 27 min.
SUS316LTB 49 {481} min 18 {177} min 35 min. 30 min. 27 min.
SUS316TiTB 53 {520} min 21 {206} min 35 min. 30 min. 27 min.

Equivalent Grades for JIS G3463 Steel Tubes:

JIS ASTM/ASME BS DIN
SA-213 T91 17175-X10CrMoVNb91
G3463 SUS304TB SA-213 Tp-304 17456 X2CrNi1911
G3463 SUS304HTB SA-213 Tp 304H 3059 CFS304S51
G3463 SUS316TB SA-213 Tp 316 17456 X5CrNiMo17122
G3463 SUS316HTB SA-213 Tp 316H 3059 CFS316S51
G3463 SUS321TB SA-213 Tp 321 17456 X6CrNiTi1810
G3463 SUS321HTB SA-213 Tp 321H 3059 CFS321S51
G3463 SUS347TB SA-213 Tp 347 17456 X5CrNiNB1810
G3463 SUS347HTB SA-213 Tp 347H 3059 CFS347S51

JIS G3463 stainless steel tubes are known for their high corrosion resistance, durability, and ability to withstand high temperatures. They are commonly used in environments where reliability and performance are critical. Whether you're looking for standard or high-temperature grades, there is a suitable option available for your application. Always ensure the selection matches the specific requirements of your project, including temperature, pressure, and chemical exposure conditions.

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