347 / 347H Stainless Steel Tube SEAMLESS AND WELDED ASTM A 312 ASME SA 312 / ASTM A 358 ASME SA 358
Stainless Steel 347/347H Seamless Pipes, SS 347/347H Seamless Tubing, UNS S34700 / UNS S34709 Tube, DIN 1.4550 / 1.4961 Tube Exporter.
TP 347H Stainless Tube is a brand of stainless steel manufactured according to the ASTM standard. tp347h stainless steel pipe s are equivalent to china 0Cr18Ni11Nb stainless steel pipe.
Size : 1/8″NB TO 30″NB IN
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Form : Round Pipes & Tubes, Square Pipes & Tubes, Rectangular Pipes & Tubes
Type : Seamless / ERW / EFW / Welded / Fabricated
Length : 1-12m
End : Plain End, Beveled End
TP347H STAINLESS STEEL PIPE BRIF INTRODUCTION.
tp347h stainless steel pipe: chromium 18%, including nickel 11%
tp347h stainless steel pipe = 0Cr18Ni11Nb contains Nb, which increases the corrosion resistance of crystals and increases the strength and plasticity. Reduce the thickness of the material. As a structural strength component.
tp347h stainless steel pipe heat treatment: solid solution treatment (980-1150 ℃) cold fast
tp347h mechanical properties of austenitic steel of stainless steel tube with solid solution (GB/t4237-92)
Yield strength is greater than 205 / MPa, the tensile strength is greater than 520 / MPa, the elongation rate is greater than 35%, hardness test: HBS is less than 187, HRB is less than 90, HV is less than 200
tp347h stainless steel pipe chemical composition: C is less than 0.08, Si less than 1.00, Mn is less than 2.00, P is less than 0.035, S is less than 0.30, Ni = 9 ~ 13, Cr = 17.00 ~ 19.00, Nb is greater than 5 * C %
In air or chemical corrosion resistant to corrosion medium of a kind of high alloy steel, stainless steel is a beautiful surface and corrosion resistant performance is good, need not after surface treatment, such as color of plating and the surface of the stainless steel inherent performance, used in a variety of steel a, often called stainless steel. It represents the performance of 13 chrome steel, 18-8 chrome nickel steel.
From the perspective of metallography analysis, because the stainless steel containing chromium and make the surface form very thin chromium film, the film is isolated from intrusion in the steel corrosion of oxygen.
To maintain the corrosion resistance inherent in stainless steel, steel must contain more than 12 percent chromium.