Stainless Steel Tube for Boiler

Stainless steel pipe/tube, Seamless austenitic stainless steel pipe/tube, Seamless duplex stainless steel pipe/tube,
U tubes

Huzhou Gaolin Stainless Steel Tube Manufacture Co., Ltd. is a professional manufacturer of stainless steel boiler tubes.

Materials: TP304/304L/304H/304N, TP310S/310H, TP316/316L/316H, TP317/317L, TP321/321H, TP347/347H, TP316Ti, TP904L, 254SMo, 600/N06600, 625/N06625, 800/N08800, N08904, 800H，N08825/N08811,
S31260, S31803, S32205, S32304, S32750, SAF2205, SAF2304, SAF2507, 1.4301, 1.4306, 1.4401, 1.4404, 1.4833, 1.4845, 1.4571, 1.4438, 1.4541, 1.4550, 1.4539, 1.4362,
1.4462, 1.4410, 1.4501, 12X18H10T, 08X18H10T, 03X18H11, 03X17H14M3 and so on.

Standards: ASTM A213, ASME SA213, ASTM B163, ASME SB163, EN10216-5, JIS G3463, DIN17458

Specification: OD 6mm to 1016mm; WT 0.5mm to 30mm; Length Max 25m.

Tests: all tubes should be hydro static tested, non-destructive tested (ET and/or UT).

The chemical composition of part of above materials which could be used for boiler tubes are as following. This table list material from N8810/800H to TP444/S44400. Other material composition would be listed in other products.

Product Analysis:

An analysis of either one billet or one tube shall be made from each heat. The chemical composition thus determined shall conform to the requirements specified. 7.2.2 If the original test for product analysis fails, retests of two additional billets or tubes shall be made. Both retests, for the elements in question, shall meet the requirements of the specification; otherwise all remaining material in the heat shall be rejected or, at the option of the producer, each billet or tube may be individually tested for acceptance. Billets or tubes that do not meet the requirements of the specification shall be rejected.

Grain size shall be as given in Table 3, as determined in accordance with Test Methods E112. 8.2 Grain size determinations, to demonstrate compliance with 8.1, shall be made on one end of one finished tube from each lot..

Subsequent to the solution anneal required in Section 6, Grades TP309HCb, TP310HCb, TP310HCbN, TP321, TP321H, TP347, TP347H, TP348, and TP348H shall be given a stabilization heat treatment at a temperature lower than that used for the initial solution annealing heat treatment. The temperature of stabilization heat treatment shall be at a temperature as agreed upon between the purchaser and vendor.

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