• Model NO.：316,304L,316,316L,317L,321,347H,310S,S31803,904L
• Surface Treatment：Polish,Pickling,Bright Annealing
• Outside Diameter：4mm - 914.4mm;8mm-630mm
• Wall Thickness：0.6mm - 30mm;0.5mm-45mm
• Length：5.8-6.1 M or as Customers′ Request
• Inspection：Dekra,TUV
• Transport Package：Woven Bags, Plastic Bags, Cap Ends, Plywood Cases
• Specification：GB, ASTM(ASME), EN, DIN, JIS
• Trademark：ZJDP
• Origin：Zhejiang, China
• Production Capacity：23000ton,Year

Name
304/316 Stainless Steel Buttweld Pipe 
Items
Square tubes, round tubes, oval pipes, special shaped pipes,
empaistic pipes, fittings
Standard
ASTM GB, EN, JIS, DIN, AISI..
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
 
Tolerance
a) Outer Diameter:  +/- 0.2mm
b) Thickness: +/- 0.02mm
c) Length: +/- 5mm
Surface
180G, 240G, 320G Satin / Hairline
400G, 600G Mirror finish
Application
handrail,railing, staircase, weldmesh screen,door,window, balcony,fence,bench,furniture,etc
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
 
 
Mechanical Property
Material Item    
201
202
304
316
Tensile Strength
≥535
≥520
≥520
≥520
Yield Strength
≥245
≥205
≥205
≥205
Extension
≥30%
≥30%
≥35%
≥35%
Hardness (HV)
<105
<100
<90
<90
 4. FAQ:
Q1: What's the advantage of your company?
A: Our company specialized in stainless steel industry for more than 20 years ,in trading for more than 10years. We know how to solve any kinds of emergency accident during trading to give you a high quality and safety services .. 

Q2: I do not have experience to purchase  from China before. How to start my first order?
A:  It is easy and simple. Please feel free to contact with us. Experienced team is ready to help you step by step.

Q3: Can I get some samples?
A: Yes, we're honored to offer you samples for quality check.

Q4:How to confirm the quality ?
A: Third party inspection is warmly welcome before shipment. We have cooperated with SGS,TUV ,BV,FIDES,etc.If you require the previous release notice issued by them,we would like to send you before order. 

Q5: Is it possible to know how is my product going on without visiting your company?
   A: We will offer a detailed products schedule and send weekly reports with digital pictures and videos which show the machining progress.

Q6: What is the production cycle?
A: It varies a lot depending on product dimension,technical requirements and quantity. We always try to meet customers' requirement by adjusting workshop schedule.

Q7: What is your payment?
A: Normally, by T/T 30% down payment, 70% balance before shipment. 100% L/C at sight is also accepted by us.

  Our Advantage
 
(1): High quality stainless steel tube with reasonable price. 
(2): Wide excellent experiences with after-sale service. 
(3): Every process will be checked by responsible QC which insures every product's quality.
(4): Professional packing teams which keep every packing safely. 
(5): Trial order can be done in one week. 
(6): Samples can be provided as your requirements. 

We are professional manufacturer of stainless steel products, including stainless steel decorative pipes,industrial stainless welded pipes, special-shaped pipes, stainless steel
sheet and etc. Main materials are: 304,304L,316,316L,321,317L,347H,S31803,2205,904L and so on.

Surface Finish :

Surface finish	Characteristics and application
No.2B	The surface brightness and flatness of no2B is better than no2D. then through a special surface treatment to improve its mechanical properties,No2B could nearly satisfy comprehensive uses.
No.3	Polished with abrasive belt of git#100-#200, have better brightness with discontinuous coarse stria, used as inner and external ornaments for building, electrical appliances and kitchen utensils etc.
No.4	Polished with abrasive belt of grit #150-#180,have better brightness with discontinuous coarse stria, but thinner than No3, are used as bathtub buildings inner and external ornaments electrical appliances kitchen utensils and food processing equipment etc.
HL	Polished with abrasive belt of grit #150-#320 on the NO.4 finish and has continuous streaks, mainly used as buildings ornaments elevators, door of building, frontal plate etc.
BA	Cold rolled, bright annealed and skin-passed, the product have excellent brightness and good reflexivity like mirror, kitchen apparatus, ornament etc.
8K	The product have excellent brightness and prefer reflexivity can to be the mirror.