Structural Cold Drawn 30CrMo Welded Pipe for Automotive Frame Tube

• Customization: Available
• Type: Seamless or Welded
• Technique: Cold Drawn
• Model NO.: ST34-2 37-2 44-2 52-3
• 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: En10305-3DIN2393,ASTM A519,GB/T8162
• Delivery Condition: Bkw, Bkw, Nbk,+Cr1 +Sr,Cold Drawn
• Steel Grade: Q345, 20cr, 40cr, 20crmo, 30-35CrMo, 42CrMo, etc.
• 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

Product Description

 

Cold drawn Automotive Frame Steel Tube

Product Description

Body frame is a common method of motor vehicle manufacturing in which a separate body or bus is mounted on a solid and relatively rigid frame or chassis, which carries the power system (engine and transmission), wheels and its suspension, brakes and steering are installed.

 

Sprcification

Standard

Standard	Steel Grade	chemical composition
		C	Si	Mn	P,S	Cu	Ni	Mo	Cr
GB/T8162	10	0.07~0.14	0.17~0.37	0.35~0.65	≤0.035	≤0.25	≤0.25	/	≤0.15
	20	0.17~0.24	0.17~0.37	0.35~0.65	≤0.035	≤0.25	≤0.25	/	≤0.25
	35	0.32~0.40	0.17~0.37	0.50~0.80	≤0.035	≤0.25	≤0.25	/	≤0.25
	45	0.42~0.50	0.17~0.37	0.50~0.80	≤0.035	≤0.25	≤0.25	/	≤0.25
	16Mn	0.12~0.20	0.20~0.55	1.20~1.60	≤0.035	≤0.25	≤0.25	/	≤0.25
	12CrMo	0.08~0.15	0.17~0.37	0.40~0.70	≤0.035	≤0.25	≤0.30	0.40~0.55	0.40~0.70
	15CrMo	0.12~0.18	0.17~0.37	0.40~0.70	≤0.035	≤0.25	≤0.30	0.40~0.55	0.80~1.10
	12Cr1MoV	0.08~0.15	0.17~0.37	0.40~0.70	≤0.035	≤0.25	≤0.30	0.25~0.35	0.90~1.20

It is mainly used for general structure and mechanical structure.

Its representative material (grade): carbon steel 20, 45 steel; Alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.

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

Cold Drawn Welded Steel Pipe Process 

Cold Drawn Seamless Steel Pipe 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 adhere to our company tenet Customer First, Quality formost and always try our best to serve our customer with our full heart.

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