Precision Steel Tubes for Shock Absorbers Gas Spring

• Type: Welded
• Technique: Cold Drawn
• Material: Carbon
• Surface Treatment: Bright Annealing,Black Phosphating,Galvanizing
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Heat Exchanger
• Section Shape: Round
• Standard: DIN2393 2394,En10305-2/3/5/6,JIS G3445,etc
• Delivery Condition: Bk (+C) Bkw (+LC) Bks (+Sr) Gbk (+a) Nbk (+N)
• Steel Grade: St34-2/37-2/44-2/52-3,E195/235/275/355,Stkm11/etc
• Certificate: ISO 9001 Ts16949
• Secondary or Not: Non-Secondary
• Application: Automotive,Hydraulic System and Precision Device
• Transport Package: Plywood Box or Bundles
• Specification: OD3-100mm
• Trademark: CW
• Origin: China
• HS Code: 7304319000

Product Description

 

Detailed Photos

Standards

 

Standard		Steel Grades	Size Range
DIN	2393	St34-2/37-2/44-2/52-3	OD3 - 100mm or As per request
	2394	St 34-2/St 37-2/St 44-2/St 52-3	OD3 - 100mm or As per request
EN	10305-2	E195/235/275/355	OD3 - 100mm or As per request
	10305-3	E195/235/275/355	OD3 - 100mm or As per request
	10305-5	E195/235/275/355	OD3 - 100mm or As per request
	10305-6	E195/235/275/355	OD3 - 100mm or As per request
JIS	G3445	STKM11/12/13/etc	OD3 - 100mm or As per request
ASTM	A512	1010/1015/1025/1030	OD3 - 100mm or As per request
ASTM	A513	1010/1015/1025/1030	OD3 - 100mm or As per request
SAE	J525	low carbon steel	OD3 - 100mm or As per request
	J526	low carbon steel	OD3 - 100mm or As per request
NF	A49-341	TS30a/TS34a/TS42a/TS37a	OD3 - 100mm or As per request
BS	6323(-6)	CWS2/CWS4/CWS5	OD3 - 100mm or As per request

Certificates: According to EN 10204 3.1  Inspection Items: Tensile stength, Yield stength, Elongation, Flattenging, FlaringChemical analysisEddy Current  Test 100%, Size and surface checking 100%Other test item can be arranged as per request DELIVERY CONDITIONS: The tubes can be produced in the following delivery conditions:  BK (+C) Cold finished/hard (cold finished as drawn). No heat treatment after the last cold forming process. BKW (+LC) Cold finished/soft (lightly cold worked) After the last heat treatment there is a light finishing pass (cold drawing). BKS (+SR) Cold finished/stress relieve annealed.  After the final cold forming process the tubes are stress relieve annealed. GBK (+A) Annealed.  After the final cold forming process the tubes are annealed in a controlled atmosphere. NBK (+N) Normalized. (Mainly focus on) After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere

Manufacture Process

Company Profile

Chewit International

Chewit international Located in zhangjiagang city which is along The Yangtze Golden Channel the junction of River and Coast Economic Belt. It owns an excellent geographic position, as it is close to Nanjing city in the north, adjacent to Suzhou and Wuxi cities in the south, next to Shanghai international city in the east. Zhangjiagang international port and State highway endow us a convenient water and land transportation which links us to the outside world both home and aboard. Chewit International is one group company with two manufactures one is producing steel forgings for Marine, Power, Boiler, Ocean, Oil, Petrochemical, Mechanical and Hydraulic fields and the other is producing precision steel tubes for automotive industry and hydraulic system and also one semi-independent company specially for import and export business. We have a total area of 150000 square meters with the employees over 200 people. All the products well produced by our mills need to be double inspected by chewit professional quality controller and then we will offer our customer the vivid report for the tested items. Only those products which are inspected well can be allowed to delivery to our customers. By the means of strict inspection, we wined a lot of customer for long term business both home and abroad. We have customers like Danieli, Cedervall,Wartsila,Sannat mansur, SeaLink, Tata Group,  Continental, Iran Khodro and also other well reputated ones. We adhere to our company tenet Customer First, Quality formost and always try our best to serve our customer with our full heart.

Packaging & Shipping