En 10217-7 1.4301 1.4307 1.4401 1.4404 Bright Annealed Welded Stainless Steel Tube Tubing

• Type: Welded
• Material: Stainless Steel
• Usage: Boiler Pipe
• Section Shape: Round
• Standard: En 10217-7
• Stainless Steel: 1.4301 , 1.4306 , 1.4845 , 1.4401 , 1.4404 , 1.457
• Model NO.: EN 10217-7
• Welding: TIG
• Surface Condition: Ba, Annealing Pickling, Polishing
• Application: Boiler, Superheater, Heat Exchanger, or Condenser
• Transport Package: Wooden Box
• Specification: 6 - 114.3 mm
• Trademark: Dingshang
• Origin: China
• HS Code: 7306400000
• Production Capacity: 7000 Ton/Year

Product Description

EN 10217-7 1.4301 1.4307 1.4401 1.4404 Welded Stainless Steel Tube

ISO9001:2015 and PED 2014/68/EU certified manufacturer
DINGSHANG has got quality management system ISO9001, EU pressure equipment directive PED and AD2000 all issued by the Lloyd's, and also a Chinese national special equipment manufacturing license (TS certificate).


 

Product Description
 

Material	Stainless Steel 304/304L/316L
Shape	Round Tubes
Production Standards	ASTM A270, ASTM A269, ASTM A249, ASTM A778, ASTM A789, DIN 11850, EN 10357, EN 10217-7 and so on.
Outer Diameter	16mm - 2000mm ;
Thickness	0.8mm - 20 mm ;
Length	6 Meters - 20 Meters ; As customers' request ;
Tolerance	According to the Standard, +/-10% Commonly ;
Surface Treatment	Annealing pickling, Bright Annealed, Polishing finish
Application	Petrochemical Industry; Chemical Fertilizer Industry; Oil Refining Industry; Oil And Gas Industry; Light Industry And Food Industry; Pulp And Paper Industry; Energy And Environmental Industries.
Test	Flaring test; Flattening test; Bending Test; Hydraulic Test; Eddy Current test
Design	OEM / ODM / Customized
Certificate	ISO9001 ; ISO14001; PED.

 
Stainless Steel Welded Tube Tolerances
 

Stainless Steel Heat Exchanger Tube Tolerances
Standard	OD(mm)	WT(mm)	Length(meters)	Grade
ASTM A249, ASTM A269,  EN 10217-7	15.88 to 114.3	0.3 to 4.0	Up to 18.3 meter	1.4301, 1.4306, 1.4404,  AISI 304/304l/316l,  S31803/S32205, etc
Standard	Outside Diameter		Thickness	Length
ASTM A249 (A1016)	<25.4	±0.10	±10%S	OD<50.8+3-0 OD≥50.8+5-0
	≥25.4~<38.1	±0.15
	≥38.1~<50.8	±0.20
	≥50.8~<63.5	±0.25
	≥63.5~<76.2	±0.31
ASTM A269 (A1016)	<38.1	±0.13	OD<12.7±15%  OD≥12.7±10%	OD<38.1+3.2-0 OD≥38.1+4.8-0

Factory Workshop & Production Lines



Quality and Tests



Certificates

Stainless Steel Grades
 

 

American Standard	TP304 , TP304L , TP310S , TP316 , TP316L , TP316Ti , TP321 , TP347 , 904L , S31803 Etc
European Standard	1.4301 , 1.4306 , 1.4845 , 1.4401 , 1.4404 , 1.4571 , 1.4541 , 1.4550 , 1.4539 , 1.4462 Etc
German Standard	X5CrNi18-10 , X2CrNi19-11 , X12CrNi25-21 , X5CrNi17-12-2 , X5CrNi17-12-3 , X2CrNiMo18-14-3 , X6CrNiTi18-10 , X6CrNiTb18-10 Etc

Company Introduction

Huzhou Dingshang stainless steel Co., Ltd. is located in Huzhou city Zhejiang Province, about one hour to Jiangsu, Shanghai and Hangzhou.

DINGSHANG is professional 

China Stainless Steel Pipe Manufacturer and Stainless Steel Tube Suppliers

, the company specializes in industrial stainless steel welded tubes and special alloys tubes, with an annual production capacity of up to 7,000 tons.

The tubes are produced to conform to GB, ASTM/ASME, JIS, DIN, EN, GOST and ISO standards.



Some special requirements from clients can also be met. Due to excellent technicians, advanced production equipment, satisfactory inspection and testing equipment and perfect quality assurance system,

DINGSHANG upholds the business philosophy of improvement, trustworthiness and co-win. Based on reliable quality tubes and prompt replies, DINGSHANG's materials have been sold nationwide and exported to more than 20 countries including leading economies worldwide.

EN 10217-7 1.4301 1.4307 1.4401 1.4404 Welded Stainless Steel Tube