What are the available steel grades?

We offer a wide range including E355, ST52, 20#, 16Mn, Q345B, Q345D, 42CrMo, 27SiMn, and various ASTM, DIN, and JIS grades.

What are the size specifications?

Outer diameter ranges from 5mm to 150mm, and wall thickness ranges from 0.5mm to 10mm.

What surface treatments are offered?

We provide Bright Annealing, Black Phosphating, Galvanizing, and Oiled finishes.

Is OEM service available?

Yes, OEM service is available for our customers.

What is the lead time for production?

The average lead time is one month for both peak season and off-season.

What payment terms do you accept?

We accept LC (Letter of Credit) and T/T (Telegraphic Transfer).

What is the minimum order quantity?

The product description does not specify a minimum order quantity.

En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube

Zhangjiagang Chewit International Co., Ltd.

7 yrs

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Product Highlights

Precision Steel Tube Construction: Composed of precision steel pipe for shock absorber working and liquid storage cylinders.
Lightweight Design: Preferred component to achieve lightweight of the shock absorber.
Wide Material Range: Available in Carbon, E355, ST52, 20#, 16Mn, Q345B, and many other steel grades.
Multiple Surface Treatments: Options include Bright Annealing, Black Phosphating, Galvanizing, and Oiled finish.
Versatile Applications: Suitable for Shock Absorber, Hydraulic Cylinder, Gas Spring, Seat Lifter, and Motor Casing.
Strict Quality Inspection: All products undergo double inspection by professional quality controllers before delivery.
OEM Service Available: Customization services are available for specific manufacturing needs.
Global Market Coverage: Main markets include North America, Europe, Southeast Asia, Middle East, and Africa.

Product Attributes

Customization: Available
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
Standard: En10305-1 En10305-3DIN2391 2393,ASTM A519,GB/T8713
Delivery Condition: Bkw, Bkw, Nbk,+Cr1 +Sr,Cold Drawn
Steel Grade: E355,235,St45,52,Q345b,16mn,10#,20#,1010,1020
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: OD5-150mm
Trademark: CW
Origin: China
HS Code: 7304319000

En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube

En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube pictures & photos — En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube

En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube
En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube
En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube
En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube
En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube
En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube
En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube

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En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube
En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube
En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube
En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube
En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube
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Product Description

E355 ST52 Seamless Automotive Chassis Steel Tube

The working cylinder and liquid storage cylinder are composed of precision steel pipe, which is one of the important components of the shock absorber and the preferred component to achieve the lightweight of the shock absorber.
Cylinder: Provides reciprocating movement of the piston rod within the cylinder block. The key characteristics are inner surface, inner and outer diameter tolerances, roughness, etc.

EN10305-1 EN10305-3	E355 E235 E410 E470 C45E
DIN2391 DIN2393	ST52 ST45
ASTM A519	SAE1020 SAE1045 SAE1026
GB/T 8713	20# 45# 16Mn Q345B Q345D Q345E 42CrMo 27SiMn
ASTM A513	1010, 1020, 1030
JIS G3445	STKM 11, STKM 12, STKM13

Specifications:

OD:18-63.5mm
Thickness:1.0-6.0mm
Surface Treatment:Oiled
Delivery Condition:Cold drawn/cold rolled

Other standard and material:
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
SAE	J525	low carbon steel	OD5 - 150mm × WT0.5-10-mm
	J526	low carbon steel	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

COLD DRAWN SEAMLESS STEEL TUBE
Standards		Steel Grades	Size Range
DIN	2391	ST35/45/52	OD5 - 150mm × WT0.5-10-mm
	1629	ST37/44/52	OD5 - 150mm × WT0.5-10-mm
	1630	ST37.4/44.4/52.4	OD5 - 150mm × WT0.5-10-mm
	2445	ST35/ST52/ST37.4//52.4	OD5 - 150mm × WT0.5-10-mm
GB/T	8162	10/20/16Mn/35/45/30CrMo/42CrMo/etc	OD5 - 150mm × WT0.5-10-mm
	8163	10/20/16Mn/35/45/30CrMo/42CrMo/etc	OD5 - 150mm × WT0.5-10-mm
	3639	10/20/16Mn/35/45/30CrMo/42CrMo/etc	OD5 - 150mm × WT0.5-10-mm
EN	10305-1	E215/235/255/355	OD5 - 150mm × WT0.5-10-mm
EN	10305-4	E215/235/255/355	OD5 - 150mm × WT0.5-10-mm
ASTM	A822-A450	A822	OD5 - 150mm × WT0.5-10-mm
	A179-A450	A179	OD5 - 150mm × WT0.5-10-mm
	A519	1010/1015/1025/1030/1045/4130/4140/etc	OD5 - 150mm × WT0.5-10-mm
SAE	J524	Low carbon steel	OD5 - 150mm × WT0.5-10-mm
JIS	G3445	STKM11A/12A/12B/12C/13A/13B/13C/S45C/etc	OD5 - 150mm × WT0.5-10-mm
JIS	G3455	STS35/38/42/49	OD5 - 150mm × WT0.5-10-mm
ISO	8535	ST 35 / 45 / 52/ 37.4 / 44.4 /52.4	OD5 - 150mm × WT0.5-10-mm
NF	A49-310	TU37b/TU52b	OD5 - 150mm × WT0.5-10-mm
BS	3602	CFS 360	OD5 - 150mm × WT0.5-10-mm
BS	6323(-4)	CFS2/CFS3/CFS4/CFS5	OD5 - 150mm × WT0.5-10-mm
GOST	8733-74	10/20/35/45/10Г2/15Х/20Х/40Х/30ХГСА/15ХМ	OD5 - 150mm × WT0.5-10-mm
	8734-75	10/20/35/45/10Г2/15Х/20Х/40Х/30ХГСА/15ХМ	OD5 - 150mm × WT0.5-10-mm
	9567-75	10/20/35/45/10Г2/15Х/20Х/40Х/30ХГСА/15ХМ	OD5 - 150mm × WT0.5-10-mm

Shock Absorber
Hydraulic Cylinder
Gas Spring
Seat Lifter Pipe
Motor Casing Pipe
Seat Modulator Pipe, etc.

Seamless:

En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube Welding:

En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube 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 adhere to our company tenet Customer First, Quality formost and always try our best to serve our customer with our full heart.

En10305-1 En10305-3 Automobile Shock Absorber Cylinder Steel Tube

About the Supplier

This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI204814". Items marked "" are certified.

Zhangjiagang Chewit International Co., Ltd.

Company Profile

Chewit international has two manufacture. One is for precision stee pipe --- CW tube. Another is manufacture steel forgings.

CW tube, one of the most professional precision tube supplier in China, has a history of more than 20 years.

Our product includes cold drawn precision seamless steel tube, cold drawn welded tube, welded stainless steel tube, tube assambly. Our tubes are used for automotive industry, hydraulic system, Mechanical fields, precision device and others.

Our company covers a toal area of 10000 square meters with the asset of more than 10 million. We have around 120 employees...Due to the advanced production line and full sets of inspection equipments, the tubes produced are promised to be in high quality.

We have ten cold drawn lines, two lines of 20 tons, three lines of 10 tons, five lines of 5 tons to promise the mass output. We use special cold drawing process to make sure the inner and outer surface in low roughness. And the precision drawing mold to garanttee the minimum size tolerance.

We have heat treatment furnace with and without oxygen environment for processing. The bright annealing furnace without oxygen to ensure the tube surface condition best without oxidization and shinning like mirror.

We have a strong and responsible inspection team. All the tubes have to pass eddy current non-destructive test, and ultrosonic non-destructive test as per customer request. We check the tube size and surface 100%. Chemical and mechanical tests are carried out for each batch of tube.

Our forging manufacture covers total area above 100000m2 with with a production capacity of 90000 tons for various kinds of forgings. Also we are eligible for a total of 11 authorized patents, including 3 invention patents.

We are supplier of Wind Power, Oil & gas, Transportation, Ship building, gear box...

We own TPG, API 20B, the European PED, MAN Diesel & Turbo, Classification society: ABS, CCS, BV, DNV, GL, LR, KR, RINA, NK.

Since 2006, we have entered into global purchasing system of the most famous company.

We have established a perfect quality management system and HSE management system. We have API Q1, ISO 9001, ISO 14001: 2004, OHSAS 18001: 2007.

We always adhere to a pragmatic, integrity, unity and innovative as business philosophy.

Scientific management, improving quality, continuous improvement, and pursuit of excellence in quality, to provide customers with first-class forging products and perfect technical services.

About Our Factory & Business Background

Business Type: Manufacturer/Factory & Trading Company
Address: 73 East Changjiang Road, Deji, Jingang Town, Zhangjiagang City, Suzhou, Jiangsu, China
Plant Area: 100 square meters
Number of Employees: 6
Registered Capital: 3,000,000 RMB
Terms of Payment: LC, T/T
International Commercial Terms(Incoterms): FOB, CIF, CFR
Average Lead Time: Peak Season Lead Time: one month
Off Season Lead Time: one month
Nearest Port: shanghai

Our Production Capability & Technical Expertise

Main Products: Carbon Seamless Pipe, Steel Forging, Stainless Tube
Production Machines: Cutting Machine, Heat Treating Machine, Stretching Machine, Straightening Machine, Diagnostic Machine, Cutting Machine, Hydraulic Universal Testing Machine
OEM Service Available: Yes
Test Reports for Raw Materials: RoHS, Others

Our Industry Experience & Global Business Record

Year of Establishment: 2010-01-12
Export Year: 2013-08-01
Main Markets: North America, South America, Europe, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea)
Number of Foreign Trading Staff: 4
Overseas Agent/Branch: No

FAQ

What are the available steel grades?: We offer a wide range including E355, ST52, 20#, 16Mn, Q345B, Q345D, 42CrMo, 27SiMn, and various ASTM, DIN, and JIS grades.
What are the size specifications?: Outer diameter ranges from 5mm to 150mm, and wall thickness ranges from 0.5mm to 10mm.
What surface treatments are offered?: We provide Bright Annealing, Black Phosphating, Galvanizing, and Oiled finishes.
Is OEM service available?: Yes, OEM service is available for our customers.
What is the lead time for production?: The average lead time is one month for both peak season and off-season.
What payment terms do you accept?: We accept LC (Letter of Credit) and T/T (Telegraphic Transfer).
What is the minimum order quantity?: The product description does not specify a minimum order quantity.
Where is the nearest port for shipping?: The nearest port is Shanghai.