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Welded Seamless Alloy Steel Tube ASTM A554 For Mechanical 304 306

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Welded Seamless Alloy Steel Tube ASTM A554 For Mechanical 304 306

China Welded Seamless Alloy Steel Tube ASTM A554  For Mechanical 304 306 supplier
Welded Seamless Alloy Steel Tube ASTM A554  For Mechanical 304 306 supplier Welded Seamless Alloy Steel Tube ASTM A554  For Mechanical 304 306 supplier Welded Seamless Alloy Steel Tube ASTM A554  For Mechanical 304 306 supplier Welded Seamless Alloy Steel Tube ASTM A554  For Mechanical 304 306 supplier

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Product Details:

Place of Origin: CHINA
Brand Name: TORICH
Certification: ISO 9001
Model Number: ASTM A554

Payment & Shipping Terms:

Minimum Order Quantity: 2 Tons
Price: negotiable
Packaging Details: in Plywood cases or bundles
Delivery Time: 30-45 days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 60000 Tons per Year
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Detailed Product Description
Product Name: ASTM A554 Welded Stainless Steel Tubing For Mechanical 304 306 Type: Stainless Steel
Surface: Pickling Material: 304 306
Shape: Round Shape Usage: Mechanical
Length: 3-9m OD: 50-1000mm
WT: 0.25-50mm

ASTM A554 Welded Stainless Steel Tubing for Mechanical 304 306

Name  stainless steel pipe
Items Square tubes, round tubes, oval pipes, special shaped pipes,
empaistic pipes, fittings
Standard ASTM A554, A249, A269 and A270
Material Grade 201: Ni 0.8%~1%
202: Ni 3.5%~4.5%
304: Ni 8%, Cr 18%
316: Ni 10%, Cr 18%
316L: Ni10%~14%
430: Cr16%~18%
Outer Diameter 9.53mm--159mm
Thickness 0.3mm - 3.0mm
Length 6m or as customers' request
  a) Outer Diameter: +/- 0.2mm
Tolerance b) Thickness: +/- 0.02mm
  c) Length: +/- 5mm
Surface Pickling and annealing
AP tube
BA tube
MP tube
EP tube
end treatment 1) Plain
2) Beveled
3) Thread with Coupling or cap
4)Bending
Application Liquid or gas transportation,such as oil and gas,water or chemical liquids.
Test Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT
Chemical Composition of Material Material Composition 201 202 304 316L 430
C ≤0.15 ≤0.15 ≤0.08 ≤0.035 ≤0.12
Si ≤1.00 ≤1.00 ≤1.00 ≤1.00 ≤1.00
Mn 5.5-7.5 7.5-10 ≤2.00 ≤2.00 ≤1.00
P ≤0.06 ≤0.06 ≤0.045 ≤0.045 ≤0.040
S ≤0.03 ≤0.03 ≤0.030 ≤0.030 ≤0.030
Cr 13-15 14-17 18-20 16-18 16-18
Ni 0.7-1.1 3.5-4.5 8-10.5 10-14  
Mo       2.0-3.0  
Material Item 201 202 304 316
Mechanical Property Tensile Strength ≥535 ≥520 ≥520 ≥520
Yield Strength ≥245 ≥205 ≥205 ≥205
Extension ≥30% ≥30% ≥35% ≥35%
Hardness (HV) <105 <100 <90 <90
Payment Payment by T/T, 30% as advance payment and 70% balance pay before shipping.
Delivery time A.7 days if this goods is stock goods.
B. 15 days if this goods will be produced after order
Validity Valid time is 3 days for price usually.

 

Surface Quality:

Inside and outside surface is smooth.There is no delamination,crack,folding,double skin,twisted,pickling,residual scale or other defects.

 

Test Item:

Chemical Component

Tensile Test

Hydraulic Test

Eddy current Test

Flattening Test

Weld Transverse Bending Test

Intergranular Corrosion Test

Radiographic Inspection

Flanging Test

Austenitic Grain Size

Impact Test of Weld Joint

 


 

Welded Seamless Alloy Steel Tube ASTM A554  For Mechanical 304 306

Welded Seamless Alloy Steel Tube ASTM A554  For Mechanical 304 306

Welded Seamless Alloy Steel Tube ASTM A554  For Mechanical 304 306

 

 

QUALITY CONTROL

1. Incoming Raw Material Inspection

2. Raw Material Segregation to avoid steel grade mix-up

3. Heating and Hammering End for Cold Drawing

4. Cold Drawing and Cold Rolling, on line inspection

5. Heat Treatment, +A, +SRA, +LC, +N, Q+T

6. Straightening-Cutting to specified length-Finished Measuring Inspection

7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc

8. Packing and Stocking.

 

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.

 

 

 
 
 

Contact Details
TORICH INTERNATIONAL CO.,LTD

Contact Person: Vivian He

Tel: +8618958207675

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