1.6368 15NiCuMoNb5-6-4 Seamless Multi Rifled Boiler Steel Tubes

• After-sales Service: Technical/Sample/Quality
• Warranty: Technical/Sample/Quality
• Type: Seamless
• Technique: Hot Rolled
• Material: Carbon/Alloy/Stainless
• Surface Treatment: Black
• Model NO.: 1.6368
• Usage: Boiler Pipe
• Section Shape: Round
• Feature: Multi Rifled
• Keywords: Boiler Steel Pipe
• Standard: DIN/ASTM/ISO/JIS
• Inspection: PED
• Transport Package: Wooden Case
• Specification: MAX 200MM
• Trademark: SHUNFU
• Origin: China

Product Description

Product Description

1.6368 15NiCuMoNb5-6-4 Seamless Multi Rifled Boiler Steel Tubes

Application
The rifled tubes are served in super/ultra super critical water wall panels over 300,000KW of boiler, chemical, electricity industries. This has a groove on its inside surface which functions to raise thermal efficiency by distrubing the fluid within the tube, featuring an extremely high thermal conduction property.


Certificate
ISO9001: 2000, PED(Pressure Equipment Directive), TS16949, DNV, KR
 

Seamless Steel Tube Chemical component

Steel name

Steel number

C

Si

Mn

P max

S max

Cr

Mo

Ni

Al

Cu

Nb

Ti max

V

Cr+Cu+Mo+Ni

Others

15NiCuMoNb5-6-4

1.6368

≤0.17

0,25 to 0.50

0,80 to 1.20

0.025

0.020

≤0.30

0.25 to 0.50

1.00 to 1.30

≤0.050

0.50 to 0.80

0.015 to 0.045

-

-

-

-

 

15NiCuMoNb5-6-4 1.6368 Seamless Steel Tube Heat Treatment

Steel grade	Steel number	Heat treatment	Austenizing Temperature °C	Cooling Medium	Tempering Temperature °C	Cooling medium
15NiCuMoNb5-6-4	1.6368	+NT	880 to 980	Air	580 to 680	air

  +NT = Normalising +Tempering 
 

15NiCuMoNb5-6-4 1.6368 Seamless Steel Tube Mechanical Property

Steel name	Steel number	Tensile properties at room temperature				Tensile Strength MPa	Elongation A min.%		Impact properties  Minimum avornge absorbed energy KV J
		T≤16	16<T≤40	40<T≤60	60<T≤100				l		t
		MPa	MPa	MPa	MPa		I	t	20	0	-10	20	0
15NiCuMoNb5-6-4	1.6368	440	440	440	440	610 to 780	19	17	40	-	-	27	-

 

15NiCuMoNb5-6-4 1.6368 Seamless Steel Tube Minimum proof strength at elevated temperature

Steel name	Steel number	Wall thickness mm	Minimum proof strength MPa at temperature of ºC
			100	150	200	250	300	350	400	450	500	550	600
15NiCuMoNb5-6-4	1.6368	≤80	422	412	402	392 '	382	373	343	304	-	-	-

Inspections

Chemical Composition,Mechanical Properties, Dimension and Surface Inspection,Inner Organization, Grain Size, UT Test
 

Size

OD 22-83mm
WT 4.5-18mm
Number of Ribs: 4-14

Package
Hexagonal bundles, strapped, both ends protected with plastic net Or wooden boxes according to length and destination Oiled inside / outside
Marking,oil-coating,varnish,end-protection by plastic caps to be confirmed.
 

Detailed Photos