ASTM312 304/304L Welded Pipe
Huzhou Dapu Stainless Steel Co., Ltd.- Usage：Pipeline Transport, Oil,Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
- Surface Treatment：Polish,Pickling,Bright Annealing
- Technique：ERW
- Material：Stainless Steel
- Type：Seamless ,Welded...
- Section Shape：Round
Base Info
- Trademark：ZJDP
- Specification：GB, ASTM(ASME), EN, DIN, JIS
- Transport Package：Woven Bags, Plastic Bags, Cap Ends, Plywood Cases
- Model NO.：304,304L
- Origin：Zhejiang, China
- Production Capacity：23000ton,Year
Description
Name
Square tubes, round tubes, oval pipes, special shaped pipes, empaistic pipes, fittings
Standard
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
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 pipe products, including stainless steel double standard pipes,industrial stainless steel welded pipes,stainless steel seamless pipe,Stainless steel section tube, stainless steel
sheet,stainless plate,stainless steel strip,steel ingot, steel bar and pipe fitting.etc. Main material: Austenite 304, 304L, 316, 316L, 321, 310S, 317L,347H,907L,etc; Duplex stainless steel S32304,
S31803/S2205, S32750, S32550, etc;Nickel base alloy N08800, N08825,N06600, N06690, etc and so on.
The produce are widely used in petroleum, chemical, paper, machinery, medicine, shipping, heat exchanger and other field.
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. |
