25*25mm Customized Precision Square Welding Automotive Chair Pipe

• Type: Seamless or 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
• Model NO.: EN 10305-2 10305-3 10305-5 10305-6
• Standard: En 10305-2 10305-3 10305-5 10305-6
• Delivery Condition: Bkw, Nbk, +Cr1 +Sr, Cold Drawn
• Steel Grade: E195/235/275/355
• Certificate: ISO 9001 Ts16949
• Secondary or Not: Non-Secondary
• Application: Automotive, Hydraulic System and Precision Device
• Size: Size as Per Real Request
• Transport Package: Plywood Box or Bundles
• Specification: OD10-55mm
• Trademark: CW
• Origin: China
• HS Code: 7304319000

Product Description

Automotive Chair Carbon Welded Steel Tube

Smooth surface: free from scale, rust, and imperfections

High precision for Size

Good Mechanical Performance

Lower roughness of inner and other surface

Welding seam invisible and untouchable

 

Advantage

The car seat is one of the important devices in the car body, which is composed of a seat frame, a cushion, a backrest, a slide rail, and an adjustment mechanism.

Standards

 

DIN2394	Steel Grade	C max	Si max	Mn max	P max	S max	Al
	St34-2	0.15	0.30	0.60	0.025	0.025	-
	St37-2	0.17	0.30	0.70	0.025	0.025	-
	St44-2	0.21	0.30	1.10	0.025	0.025	-
	St52-3	0.22	0.55	1.60	0.025	0.025	≥0.020

 

Standard	Steel Grade	C max	Si max	Mn max	P max	S max	Cr	Mo
EN10305-3	E235	0.17	0.35	1.20	0.025	0.025	-	-

Standard	Steel Grade	C	Si max	Mn max	P max	S max	Cr	Mo
ASTM A513	1010-1025	0.13-0.28	-	0.3-1.6	0.04	0.05	-	-

 

Standard	Steel Grade	C max	Si max	Mn max	P max	S max	Cr	Mo
GB/T13793	Q235B	0.20	0.35	1.4	0.045	0.045	-	-

Welding and mandrel drawn welding tubes

Standard		Steel Grades	Size Range
DIN	2393	St34-2/37-2/44-2/52-3	OD5 - 150mm × WT0.5-10-mm
	2394	St 34-2/St 37-2/St 44-2/St 52-3	OD5 - 150mm × WT0.5-10-mm
EN	10305-2	E195/235/275/355	OD5 - 150mm × WT0.5-10-mm
	10305-3	E195/235/275/355	OD5 - 150mm × WT0.5-10-mm
	10305-5	E195/235/275/355	OD5 - 150mm × WT0.5-10-mm
	10305-6	E195/235/275/355	OD5 - 150mm × WT0.5-10-mm
JIS	G3445	STKM11/12/13/etc	OD5 - 150mm × WT0.5-10-mm
ASTM	A512	1010/1020/1025/1030	OD5 - 150mm × WT0.5-10-mm
ASTM	A513 TYPE 5	1010/1020/1025/1030	OD5 - 150mm × WT0.5-10-mm
GB/T	31315-2014	SPCC/Q195/Q235	OD5 - 150mm × WT0.5-10-mm
	24187	BHG1/SPCC	OD3-30mm× WT0.5-3mm
	13793	Q195/Q235B/Q345B	OD5 - 150mm × WT0.5-10-mm
SAE	J525	1010/1020	OD5 - 150mm × WT0.5-10-mm
	J526	1010/1020	OD5 - 150mm × WT0.5-10-mm
NF	A49-341	TS30a/TS34a/TS42a/TS37a	OD5 - 150mm × WT0.5-10-mm
BS	6323(-6)	CWS2/CWS4/CWS5	OD5 - 150mm × WT0.5-10-mm

Product Description

Standard	DIN2394, EN 10305-3, EN 10305-4 and others
Size	OD:10-15mm   Thickness:1.2-2.0mm
Production	Welding and forming
Material	Q235B, STKM 13C, ST52 and others
Application	Seat Headrest Outboard Frame
Surface Treatment	Spraying,chrome plating
Subsequent processing	Bending,flattening,welding
Detail shape as per customer drawing

1. High strength values (elongation at break, tensile strength)
2. High torsional strength and durability
3. Very good welding properties  
4. High geometrical accuracy (eccentricity, roundness)     
5. Excellent surface condition

Manufacture Process

 

Packaging & Shipping

 

Other Products

 

 

FAQ

 

1. who are we? We are based in Jiangsu, China, start from 2010,sell to Eastern Asia(20.00%),Mid East(20.00%),Eastern Europe(15.00%),Southeast Asia(15.00%),Northern Europe(10.00%),Domestic Market(10.00%),South America(5.00%),Western Europe(5.00%),South Asia(0.00%),North America(0.00%),Oceania(0.00%),Southern Europe(0.00%),Central America(0.00%),Africa(0.00%). There are total about 11-50 people in our office.

2. how can we guarantee quality? Always a pre-production sample before mass production; Always final Inspection before shipment;

3.what can you buy from us? Steel Pipe, Seamless Pipe, Hydraulic Oil Tube, Precision Tube, Stainless Steel Tube

4. why should you buy from us not from other suppliers? Production: Advanced production line and drawing with special oil to make the surface in best condition. Lower roughness and good mechanical performance. Inspection before delivery: Professional team for inspection and randomly check

5. what services can we provide? Accepted Delivery Terms: FOB,CFR,CIF,EXW,DDP,DDU; Accepted Payment Currency:USD,EUR,HKD,CNY; Accepted Payment Type: T/T,L/C,MoneyGram; Language Spoken:English,Chinese,Spanish,Japanese

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.