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Boiler tubes, heat exchanger tubes

Welded pipes

L, LL, KLM finned tubes (finned tubes)

G embedded fin tubes (finned tubes)

(serrated) extruded finned tubes

high frequency welded (serrated) fin tubes (finned tubes)

Laser welded fin tubes (finned tubes)

hot dipped galvanized oval (elliptical) finned tubes, rectangular fin tubes

condenser fin flat tubes

inner finned tubes (finned tubes)

Studded Pipes

H / double H fin tubes (finned tubes)

longitudinal fin tubes (finned tubes)

Tube finning machine

Aluminum plates, strips,foils

Aluminum welding wire rod

Aluminum tubes, profile

Economizer for Boiler

air-cooled heat exchanger (air cooler)

seamless fin tubes with two longitudinal opposite fins

material

cast pipes

standard & specification

 
 
ASTM A334 alloy steel tubes for heat exchanger & boilers

ASTM A334 Standards specifications download

ASTM A 334 Low Temperature Tubes / Alloy Steel for Heat exchanger and Boilers
Chemical composition and mechanical properties
Manufacturing Process: Seamless or Welded Chemical Analysis

GradeC maxMnP maxS maxSiNimin YS KSI [MPA]min TS KSI [MPA]El (%)
10.300.40-1.060.0250.025  30 [205]55 [380]35
30.190.31-0.640.0250.0250.18-0.373.18-3.8235 [240]65 [450]30
60.300.29-1.060.0250.0250.10 min 35 [240]60 [415]30
70.190.90 max0.0250.0250.13-0.322.03-2.5735 [240]65 [450]30
80.130.90 max0.0250.0250.13-0.328.40-9.6075 [520]100 [690]22
910.200.40-1.060.0250.025 1.60-2.2446 [315]63 [435]28
1120.100.60 max0.0250.0250.35 max35.0-37.035 [240]65 [450]18

 
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