Tp347/347H (1.4550, 1.4912) High-Temperature Stainles Steel Tube

Model NO.: High-temperature tube Technique: Hot Rolled Surface Treatment: Polished Section Shape: Round Stainless Steel: 1.4404(AISI 316L) Trademark: C&N Type: Seamless Material: Stainless Steel Usage: Pipeline Transport, Oil/Gas Drilling Stainless Steel Tube: 304/304L 316/316L Stainless Steel Pipe: 1.4401(AISI 316) Origin: China We offer high quality stainless steel pipe 


Stainless Steel 347 UNS S34700 is advantageous for high temperature service because of its good mechanical properties . SS 347 also has excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800° to 1500° F. SS 347 is similar to SS 321 with respect to intergranular corrosion which is achieved through the use of columbium as a stabilizing element to maximize this feature. SS 347 can not be hardened through heat treating, but elevated properties may be obtained through cold reduction. SS 347H is a modification of SS 347 with a higher carbon content, to provide improved high temperature strength.
Chemical Composition

	SS 347	SS 347H
Ni	9 - 13	9 - 13
Cr	17 - 19	17 - 19
C	0.08 max	0.04 - 0.10
Mo	3 - 4	3 - 4
Fe	Balance
Mn	2 max	2 max
Si	0.75 max	0.75 max
S	0.03 max	0.03 max
P	0.045 max	0.045 max
Co + Ta	10xC min  1.00 max	8xC min  1.00 max

Specifications

Stainless Steel SS 347 / 347H
AISI	347 / 347H
UNS	S34700 / S34709
Werkstoff Nr.	1.4550 / 1.4961

Mechanical & Physical Properties

Density	8.0 g/cm3
Melting Point	1454 °C (2650 °F)
Tensile Strength	Psi - 75000 , MPa - 515
Yield Strength (0.2%Offset)	Psi - 30000 , MPa - 205

Process method:    Cold drawn / Hot rolled

Surface finish: Anneal / pickling / polished / bright anneal


Standards: ASTM A 312
Size: A) NPS: 1/4" to 26"
         B) Schedule: Sch 5S, 10S, 20S, 40S, 80S

Our production scope;

Specifications:
EN 10216-5	EN 10297-2
DIN 17456	DIN 17458
ASTM A269	ASTM A312
ASTM A213	ASTM A511

Grades:
EN	ASTM/ASME
1.4301 / 1.4307	TP 304 / 304L
1.4401 / 1.4404 / 1.4435	TP 316 / 316L
1.4541 / 1.4878	TP 321 / 321H
1.4571	TP 316Ti
1.4550 / 1.4961	TP 347 / 347H
1.4841	TP310
1.4845	TP 310S
1.4948	TP 304H
1.4539	UNS N08904 (TP904L)
1.4410	UNS S32750
1.4462	UNS S31803 (DUPLEX)
1.4507	UNS S32550

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Product Categories : Stainless Steel Pipe