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Automotive Stkm11a Welded Steel Tube Cold Drawn For Auto Exhaust System

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Automotive Stkm11a Welded Steel Tube Cold Drawn For Auto Exhaust System

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Brand Name :	TORICH
Model Number :	JIS 3445
Certification :	ISO 9001 ISO 14001 TS 16949 EN 10204.3.1 ABS DNV
Price :	USD 1650-1750 per ton
Payment Terms :	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability :	60000 Tons per year
Delivery Time :	35-45 days

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Automotive Stkm11a Welded Steel Tube Cold Drawn For Auto Exhaust System

STKM11A Automotive Welded Steel Tube Cold Drawn for Auto Exhaust System

application	Automobile and motorcycle Shock Absorber Pipe Hydraulic-cylinder Pipe Mechanical steel pipes for auto and motor parts Gas Spring pipe motor casing pipe
size	length--2~12m WT--2~5mm OD--10-20mm
material	STKM11A
Production process	ordinary high-frequency welded pipe
Advantages	small diameter and thick wall
Surface Quality	The internal and external surfaces of the steel tube are not allowed to have cracks, scabs, folds, delaminations, laps, and burns. Allows for scribes, scratches, misalignment of welds, burns, oxide scales, and external burr removal traces that are not more than a negative wall thickness deviation
Inspection items	chemical composition Tensile test Ultrasonic examination Eddy current flaw detection Bending test Flattening test

Permissible Tolerance of Outer Diameter and Wall Thickness (mm)

Type of steel Tube	Dimension of steel tube		Permissible tolerance

			Average class	High class

Hot-rolled (extruded and expanded) tube	Outer diameter D	All	±1% (min.+/-0.50)	-

	Wall thickness	All	+15%/-12.5% (min.+4.5/-4.0)	-

Cold-drawn (cold-rolled) tube	Outer diameter D	6~10	±0.2	±0.15
		>10~30	±0.40	±0.20
		>30~50	±0.45	±0.30
		>50	±1%	±0.8%
	Wall thickness	<1	±0.15	±0.12
		>1~3	+15% -10%	+12.5% -10%
		>3	+12.5% -10%	±10%
Note: For hot-expanded tubes with outer diameter>35mm,the permissible tolerance of wall thickness is±18%.

Longitudinal Mechanical Properties of Steel Tubes

NO.	Steel Grade	Tensile Strength(Mpa)	Yield point(Mpa)		Elongation after breaking(%)
			s<16	s>16	Elongation after breaking(%)
			Not less than
1	10	335~475	205	195	24
2	20	410~550	245	235	20
3	Q295	430~610	295	285	22
4	Q345	490~665	325	315	21

Permissible deviations of the product analysis from the specified limits

Element	Limiting values for cast analysis	Permissible deviatioon of the product analysis in % by mass
C	≤0.22	+0.02
Si	≤0.55	+0.05
Mn	≤1.60	+0.10
P	≤0.025	+0.005
S	≤0.015	+0.003
Al	≥0.025	-0.005

Automotive Stkm11a Welded Steel Tube Cold Drawn For Auto Exhaust System

What is your Guarantee?
1.SO9001:2008 and TS16949 certification, SGS, BV, TUV or other third party inspection is available.
2.High quality with competitive price.
3.Advanced technology, experienced engineer, ISO quality system for quality assurance and traceability.

Do you have agent or distributor in our country?
1.We are recruiting area agent and distributor all over the world, welcome to send us your mail or call us for detail discussion.

How is your production capability?
1.2000 tons monthly production capacity, 5000 tons monthly trading capability
2.Prompt and Timely shipment

How to get the sample?
1.You are requested to pay for sample charges and courier charges from China to your country; and the free sample is according the product like size, steel grade and quantity, please consult our sales for details
2.Sample charges will be refunded when order is placed.

What is your Payment Term?
1.T/T: 30% deposit in advance, the balance 70% paid before shipment
2.30% down payment, the balance 70% paid against L/C at sight
3.Upon negotiation

Who are your customers?
1.Stockists, Distributors,Wholesalors,Agents, Traders, End Users, etc

How long will you react on our requirement?
1.Your requirement would be treated within 24 hours on weekdays. Quotations would be sent upon technical details confirmed by customer!

Any more questions about your doubts, please feel free to send us your emails or call!

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