A269 304L Seamless Stainless Steel Boiler Heat Exchanger Tube

• Type: Stainless Steel Pipes
• Standard: ASTM, AISI, GB, JIS, DIN, EN
• Grade: 300 Series
• Certification: ISO, BV, GB
• Shape: Round
• Technique: Cold Dranw
• Model NO.: EM-304L
• Surface Treatment: Pickling
• Thickness: 5s-Xxs
• Od: 1/8" - 24"
• Production Way: Cold Drawn/ Hot Rolled/ Cold Rolled
• Transport Package: in Bundles or Wooden Case
• Specification: 1/8" - 24"
• Trademark: Kingmetal
• Origin: China
• HS Code: 73044190
• Production Capacity: 20000 Ton/Year

Product Description

Kingmetal steel industry Co., Ltd is a subsidiary of Kingmetal Group. We are a professional pipe manufacturer, specialized in stainless steel seamless pipe, stainless steel welded pipe, stainless steel pipe fitting, and also are capable to supply sheet, plate, bar, fastener, flange in all stainless steel grade with competitive price and excellent quality. 
 
Products are exported to more than 50 Countries and Areas in last 26 years. Including Europe, America, Russia, South Korea, South Africa, Middle East, Taiwan, Chile, Peru, Brazil and so on. 
 
Existing testing equipment include PMI Chemical Testing, Ultrasonic Detector test deceive, Eddy Current Inspection decieve, Universal Testing Machine and Hardness Tester. Chemical composition, mechanical property are 100% guaranteed. 
 

Standards	ASTM 249/ 269 DIN17457 EN10216
Specification	OD:6mm-1219mm,WT:0.5-30mm, Length: Max. 20meters
Material	TP304, TP304H, TP304LN, TP304L,TP310/S, TP316L, TP316H,TP316/316L,TP317L,TP321/321H,TP347,S31803,2205,2507,ect
Process method	ERW,TIG
Surface finish	Annealed & Pickled /Bright Annealed,Polished
Applications	For fluid and gas transport, structure and Machining, heat exchanger, boiler
Packing	Seaworthy Wooden Cases / Steel Framed Cases / Bundle
Marking	All tubes are marked as follows: SPEZILLA. Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request. )

Material	ASTM A249  Chemical Composition % Max
	C	Mn	P	S	Si	Cr	Ni	Mo	N B	Nb	Ti
TP304	0.08	2	0.045	0.03	1	18.0-20.0	8.0-11.0	^	^	^ .	^
TP304L	0.035	2	0.045	0.03	1	18.0-20.0	8.0-12.0	^	^	^	^
TP316	0.08	2	0.045	0.03	1	16.0-18.0	10.0-14.0	2.00-3.00	^	^	^
TP316L	0.035 D	2	0.045	0.03	1	16.0-18.0	10.0-15.0	2.00-3.00	^	^	^
TP321	0.08	2	0.045	0.03	1	17.0-19.0	9.0-12.0	^	^	^	5C -0.70
TP347	0.08	2	0.045	0.03	1	17.0-19.0	9.0-12.0			10C -1.10	^

 

Material	Heat treatment	Temperure F (C) Min.	Hardness
			Brinell	Rockwell
TP304	Solution	1900 (1040)	192HBW/200HV	90HRB
TP304L	Solution	1900 (1040)	192HBW/200HV	90HRB
TP316	Solution	1900(1040)	192HBW/200HV	90HRB
TP316L	Solution	1900(1040)	192HBW/200HV	90HRB
TP321	Solution	1900(1040) F	192HBW/200HV	90HRB
TP347	Solution	1900(1040)	192HBW/200HV	90HRB

OD, inch	OD Tolerance inch(mm)	WT Tolerance %	Length Tolernace inch(mm)
			+	-
≤ 1 / 2	± 0.005 ( 0.13 )	± 15	1 / 8  ( 3.2 )	0
> 1 / 2 ~1 1 / 2	± 0.005(0.13)	± 10	1 / 8 (3.2)	0
> 1 1 / 2 ~< 3 1 / 2	± 0.010(0.25)	± 10	3 / 16 (4.8)	0
> 3 1 / 2 ~< 5 1 / 2	± 0.015(0.38)	± 10	3 / 16 (4.8)	0
> 5 1 / 2 ~< 8	± 0.030(0.76)	± 10	3 / 16 (4.8)	0
8~< 12	± 0.040(1.01)	± 10	3 / 16 (4.8)	0
12~< 14	± 0.050(1.26)	± 10	3 / 16 (4.8)	0