ASTM A213 SS 347H Tube

1. Standard: ASTM A213, ASME SA213
2. OD Size: 6mm-720mm
3. Wall Thickness: 0.5mm-50mm
4. Equivalent: UNS S34709, DIN 1.4961, AISI 347h

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Product Introduction

ASTM A213 SS 347h Tube is a high carbon version of the 347 grade, with stabilizing alloying elements such as niobium and titanium added, which not only has excellent high temperature strength, but also reduces the risk of intergranular corrosion at high temperatures. UNS S34709 Tube has excellent corrosion resistance in acidic and alkaline environments, such as sulfuric acid, hydrochloric acid and alkaline solutions. We are a SS 347h Tubing supplier with 15+ export experience, contact us for more information and free quotes!

ASTM A213 TP321H stainless tube material standard:

ASTM A213: ASTM A213 TP321H is a specification for seamless ferritic and austenitic stainless steel tubing for high-temperature and general corrosive service.

American Standard Grades: TP310S, 316Ti, TP317, TP317L, TP321, TP321H, TP347, TP347H, S31254, N08926, N08904

European Standard Grades: 1.4301, 1.4306, 1.4401/1.4436, 1.4404/1.4435, 1.4571, 1.4449, 1.4438, 1.4541, 1.4878, 1.4841, 1.4845, 1.4550, 1.4961, 1.4547, 1.4539

ASTM A213 TP347h Stainless Steel Seamless Tube

ASTM A213 TP347H Stainless Steel Tube Seamless Specifications

Outer Diameter	6mm-720mm
Wall Thickness	0.5mm-50mm
Length	Normally fixed length 6m, can as per customer's requirement
Standard	ASTM A213, ASME SA213
Process Method	Hot Rolled, Cold Drawn, or Cold Rolled

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Chemical Composition of ASME SA213 S34709 Seamless Tubes

Grade	C, %	Si, %	Mn, %	P, %	S, %	Cr, %	Ni, %	Nb+Ta, %	Ti, %
SS 347H	0.04-0.10	1.00 max	2.00 max	0.045 max	0.030 max	17.0-19.0	9.0-13.0	8*C-1.1	5*C-0.70

SS 347H Seamless Tube Mechanical Properties

Alloy	Specification	Tensile Strength MPa	Tensile Strength ksi	Yield Strength MPa	Yield Strength ksi	Elongation in 2 inches (min.) %	Grain Size Req.	Hardness HBW
347H	ASTM A213	515	75	205	30	35	7 or coarser	192

TP347h Stainless Steel Tube Applications

Oil and Gas
Chemical Processing
Power Generation Boilers
Superheaters
Heat Exchangers

TP347h VS TP347 Stainless Steel Pipe

347H has better resistance to sensitization than 347 stainless steel pipe. This is because 347H has a higher carbon content and some stabilizing alloying elements such as niobium (Nb) and titanium (Ti) are added.

Din 1.4961 Stainless Steel Tube Heat Treatment Requirements

Grade	UNS	Heat Treat Type	Austenitizing / Solutioning Temperature, min or range °F [°C]	Cooling Media	ASTM Grain Size No. B
	Designation
TP347H	S34709	Solution treatment	Cold Worked: 2000°F[1100°C]	water or another rapid cool	7
			Hot Rolled: 1925°F[1050°C]