Small Diameter Cold Drawn SS 304 Stainless Steel Seamless Pipe

About our Company    Wenzhou Bolai Stainless Steel Co., Ltd. with more than ten years manufacturing and exporting experience,has earned a reputation for providing guaranteed quality ,competitive prices, good service and on-time delivery of  your stainless steel pipe,tube and pipeline accessories.    

Featured Products


Small Diameter Cold Drawn Ss 304 Stainless Steel Seamless Pipe

About our Company


    Wenzhou Bolai Stainless Steel Co., Ltd. with more than ten years manufacturing and exporting experience,has earned a reputation for providing guaranteed quality ,competitive prices, good service and on-time delivery of  your stainless steel pipe,tube and pipeline accessories.
 

    Our factory with 25,000 square meters modern workshop is located in Longquan Zhejiang Province. Besides the advanced production equipment, we have a full set of  inspection devices,such as Germany-brand direct reading spectormeter,ultrasonic flaw detection equipment,eddy-current test equipment,hydrostatic testing machine,hydraulic universal tester and inter-granular corrosion equipment,etc.for guaranteeing the quality.

Small Diameter Cold Drawn Ss 304 Stainless Steel Seamless Pipe

Certificates


Our Quality Management System has been certified as per ISO9001:2015 . The production and testing facilities have been approved by various certification bodies. All production processes andinspection are strictly controlled according to the requirements of ISO9001:2015 and other certification bodies.
Small Diameter Cold Drawn Ss 304 Stainless Steel Seamless Pipe
Small Diameter Cold Drawn Ss 304 Stainless Steel Seamless Pipe


   Product Description

Small Diameter Cold Drawn Ss 304 Stainless Steel Seamless Pipe
Namestainless steel pipe
StandardASTM, JIS, DIN, EN, AISI, GOST, GB
Material GradeTP304 TP304L TP316 TP316L TP347 TP347H TP321 TP310 TP310 STP410 TP410S TP403
S31803/S32205 S32750 S32760
Outer DiameterSeamless Pipe: 6mm-812mm
Welded Pipe: 8mm-3000mm
ThicknessSeamless Pipe: 1mm - 60mm
Welded Pipe: 0.5mm - 45mm
Length5.8 - 7 m or as customers' request
ToleranceAccording to the Standard.
Surfaceannealed, pickled & annealed, polished , bright, matt
TestUT, ET, HT or as the requests of the customers
CertificateISO9001-2015 ,ASME, PED , TC
Delivery Time7-30 Days, Depends on quantity

                                          Table 1    Product Specification                                                 
Norminal Pipe SizeOutside Diameter(mm)     Norminal Wall Thickness(mm)
NPSDSCH5SSCH10SSCH20SSCH40SSCH40SCH80SCH80S
1/810.3---1.241.51.731.732.412.41
1/413.7---1.652.02.242.243.023.02
3/817.1---1.652.02.312.313.203.20
1/221.31.652.112.52.772.773.733.73
3/426.71.652.112.52.872.873.913.91
133.41.652.773.03.383.384.554.55
1 1/442.21.652.773.03.563.564.854.85
1 1/248.31.652.773.03.683.685.085.08
260.31.652.773.53.913.915.545.54
2 1/273.02.113.053.55.165.167.017.01
388.92.113.054.05.495.497.627.62
3 1/2101.62.113.054.05.745.748.088.08
4114.32.113.054.06.026.028.568.56
5141.32.773.405.06.556.559.539.53
6168.32.773.405.07.117.1110.9710.97
8219.12.773.766.58.188.1812.7012.70
10273.13.44.196.59.279.2715.0912.70
12323.93.964.576.59.5310.3117.4812.70
14355.63.964.788.0---11.1319.05---
16406.44.194.788.0---12.721.44---
18457.24.194.788.0---14.2723.83---
20508.04.785.549.5---15.0926.19---

                                           Table 2        Permissible deviation of OD and wall thickness                        mm

Hot Rolled Steel PipeCold Rolled Steel Pipe
SizeAllowable deviationSizeAllowable deviation
PAPCPAPC
Nominaloutside diameter
D
68~159±1.25%D±1%DD6~10±0.20±0.15
>10~30±0.30±0.20
>30~50±0.40±0.30
>50~219±0.85%D±0.75%D
>159±1.5%D>219±0.9%D±0.80%D
Nominal Wall thickness
S
<15+15%S
-12.5%S
±12.5%SS≤3±12%S±10%S
≥15+20%S
-15%S
>3+12.5%S
-10%S
±10%S

                                                                                                
 
Our production Equipment

Small Diameter Cold Drawn Ss 304 Stainless Steel Seamless Pipe

Inspections & Tests

All materials will be tested by destructive and non-destructive testing before delivery, the following testing are available in BOLAI Company:

★   Non-destructive tests: Eddy current test,  Ultrasonic test,  Hydrostatic test,  Dimension examination, Surface examination,  Hardness test
★   Destructive tests: Metallographic examination,  Intergranular corrosion test,  Mechanical property tests,  Tension test,   Flattening test,   Flaring test,  Bending test,  Impact test


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Small Diameter Cold Drawn Ss 304 Stainless Steel Seamless Pipe

Small Diameter Cold Drawn Ss 304 Stainless Steel Seamless Pipe
General character:
★ Various usage
★ Good corrosion resistance, durable using
★ Good oxidation resistance in different environment
★ High strength and high temperature resistance
★ Clean, smooth ,mirror surface


Applications:
Chemical industry,electricity power,automobile manufacturing,food,mining industry,aviation,ship manufacturing,supply gas


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Small Diameter Cold Drawn Ss 304 Stainless Steel Seamless Pipe






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FAQ
Q: Are you trading company or manufacturer ?
A: We are factory,and we have our own trading company.
Q: How long is your delivery time
A: Generally it is 5-10 days if the goods are in stock. Or it is about 20-30 days if it goes to produce, it is according to quantity.
Q: Do you provide samples ? Is it free or extra ?
A: Yes, we could offer the sample for free charge as request but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

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