Heat - Exchanger Stainless Steel Welded Tube , Stainless Steel 316 Pipe Fittings

A 249 / A 249M 316 Stainless Steel Welded Tube Superheater, Heat- Exchanger, and Condenser Tubes

We offer A 249/A 249M – 01 TP304H, TP309H, TP309HCb, TP310H,
TP310HCb, TP316H, TP321H, TP347H, and TP348H
are modifications of Grades TP304, TP309S, TP309Cb,
TP310S, TP310Cb, TP316, TP321, TP347, and TP348 Welded Stainless Steel Pipe  Standard Specification for
Welded Austenitic Steel Boiler, Superheater, Heat-
Exchanger, and Condenser Tubes

1.1 This specification 2 covers nominal-wall-thickness
welded tubes made from the austenitic steels listed in Table 1,
with various grades intended for such use as boiler, super-
heater, heat exchanger, or condenser tubes.
1.2 Grades TP304H, TP309H, TP309HCb, TP310H,
TP310HCb, TP316H, TP321H, TP347H, and TP348H
are modifications of Grades TP304, TP309S, TP309Cb,
TP310S, TP310Cb, TP316, TP321, TP347, and TP348, and are
intended for high-temperature service such as for superheaters
and reheaters.

Other standard type:

QUALITY CONTROL

1~ Incoming Raw Material Inspection

2~ Raw Material Segregation to avoid steel grade mix-up

3~ Heating and Hammering End for Cold Drawing

4~ Cold Drawing and Cold Rolling, on line inspection

5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T

6~ Straightening-Cutting to specified length-Finished Measuring Inspection

7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc

8~ Packing and Stocking

ZHEHENG STEEL has passed approved by ABS, DNV, GL, BV, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2008, ISO 14001-2004 With good quality and competitive price, we warm a good reputation in domestic and international markets. We hope to build a good and long relationship with customers from home and abroad.