Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Model No.: JIS 3445 STKM11A
Brand: TORICH
Type: Welded
Certification: UL
Application: Hydraulic Pipe
Section Shape: Round
Surface Treatment: Oiled
Usage: Auto Exhaust System
Technique: Cold Drawn
Material: Carbon Steel
Shape: Round
Length: 2-12m
Surface: Oiled
Product Name: STKM11A Auto Exhaust System Welded Steel Pipe
STEEL GRADE: STKM11A
Packaging: In bundles In wooden boxes
Productivity: 60000 Tons per Year
Transportation: Ocean,Land,Air
Place of Origin: China
Supply Ability: 60000 Tons per Year
Certificate: ISO 9001 ISO 14001 TS 16949 EN 10204.3.1 ABS DNV
HS Code: 7306301100
Port: Ningbo,Shanghai
Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,FCA,CPT
STKM11A Auto Exhaust System Welded Steel Pipe
length--2~12m WT--2~5mm OD--10-20mm chemical composition Tensile test Ultrasonic examination Eddy current flaw detection Bending test Flattening test
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 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
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 | ||||
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 |
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!
Product Categories : Automotive Steel Tube
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Fill in more information so that we can get in touch with you faster
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.