Home > Products > Industrial Pipeline Series > Stainless Steel Seamless Pipes Tp321 ASTM A321/A312M Stainless Welded Steel Pipe A312 316L TP304L A321 TP304 TP304H N08904 JIS G3459
Stainless Steel Seamless Pipes Tp321 ASTM A321/A312M Stainless Welded Steel Pipe A312 316L TP304L A321 TP304 TP304H N08904 JIS G3459
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Product Details
Type | Stainless Steel Pipes | Certification | ISO, ROHS, IBR, AISI, ASTM, GB, EN, DIN, JIS, Other | |
Shape | Round | Grade | Other | |
Technique | Other | Surface Treatment | Polished | |
Standard | ASTM, AISI, GB, JIS, DIN, EN, Other | Specification | OEM | |
Trademark | ZHONGZHENG INTERNATIONAL | Origin | China |
Product Description
316L TP304 BA clean pipe
The A312 Tp304 Pipe is either pushed or pulled to form the shape from usually a round billet of the raw material. It is more resistant to corrosion than the ordinary 304 Stainless Steel Pipe. Our 304 Stainless Steel Seamless Pipe low carbon content which makes it highly weldable and formable. The Stainless Steel 304 Welded Pipe can come in different shapes such as the SS 304 Round Pipe or the SS 304 Square Pipe. The SS 304 Erw Pipe is used in long service chemical and industrial applications. There are different schedules such as the SS 304 Sch 40 Pipe. Our products are made in superior quality and have highly competitive pricing in the market.
If you are looking for a reliable & one of the oldest 304 Stainless Steel Pipe supplier in India who can provide material with mirror polish pipe and plain/ bevel/ threaded so check our client and price list. Oshwin Overseas supply SS 304 Seamless Pipe from 6" NB to 120 Inch Nb in all types like Seamless, ERW, Welded, fabricated & Grooved. All our material comes with International specification of ASTM A312, A249, and ASME SA 312. We can provide 304 Steel Pipe thickness from 1.2mm to 2mm. The pipe length standard size 3 meter, 6 meter and 10 meter. But we are one of the supplier who provide cut to length pipe in grade 304 which saves your cost and avoid wastage. Oshwin is SS 304 Pipe supplier who stock pipes in all surface finish like Mill Finish, Annealed, Anodized, Sand Blasted, Brushed, Polished, Bright Annealed, Cold Drawn and many others. We can also provide SS Pipe polish services from 182 - 320 grit. Our brushed and satin finish pipe are used in renowned shopping malls in India & UAE. You can contact us for a full price list and product list.
Item | Stainless Steel Round Pipe / Tube | |
Steel grade | 200 / 300 / 400 series | |
Standard | ASTM A213,A312,ASTM A269,ASTM A778,ASTM A789,DIN 17456, DIN17457,DIN 17459,JIS G3459,JIS G3463,GOST9941,EN10216, BS3605, GB13296 | |
Material | 304,304L,309S,310S,316,316Ti,317,317L,321,347,347H,304N,316L, 316N,201,202 | |
Surface | Polishing,annealing,pickling,bright(NO.1/NO.2D/NO.2B/BA/NO.3/NO.4/NO.7/NO.8) | |
Type | Hot rolled and cold rolled | |
Size | Wall thickness | 0.15-50mm |
Outer diameter | DN15-DN600 | |
Delivery time | 7-35 weekdays | |
Package | Standard Export Package,Suit for All Kinds of Tran |
Surface Finish | Definition | Application |
2B | Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster. | Medical equipment, Food industry, Construction material, Kitchen utensils. |
BA/8K mirror | Those processed with bright heat treatment after cold rolling. | Kitchen utensils, Electric equipment, Building construction. |
NO.3 | Those finished by polishing with No.100 to No.120 abrasives specified in JIS R6001. | Kitchen utensils, Building construction. |
NO.4 | Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001. | Kitchen utensils, Building construction, Medical equipment. |
Hairline | Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size. | Building Construction. |
NO.1 | The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling. | Chemical tank, pipe. |
Normal pipe size | OD | Normal wall thickness | |||||||||||||
DN | inch | ASME | SCH10 | SCH20 | SCH30 | STD | SCH40 | SCH60 | XS | SCH80 | SCH100 | SCH120 | SCH140 | SCH160 | XXS |
15 | 1/2 | 21.3 | 2.11 | 2.41 | 2.77 | 2.77 | 3.73 | 3.73 | 4.78 | 7.47 | |||||
20 | 3/4 | 26.7 | 2.11 | 2.41 | 2.87 | 2.87 | 3.91 | 3.91 | 5.56 | 7.82 | |||||
25 | 1 | 33.4 | 2.77 | 2.9 | 3.38 | 3.38 | 4.55 | 4.55 | 6.35 | 9.09 | |||||
32 | 1.25 | 42.2 | 2.77 | 2.97 | 3.56 | 3.56 | 4.85 | 4.85 | 6.35 | 9.7 | |||||
40 | 1.5 | 48.3 | 2.77 | 3.18 | 3.68 | 3.68 | 5.08 | 5.08 | 7.14 | 10.15 | |||||
50 | 2 | 60.3 | 2.77 | 3.18 | 3.91 | 3.91 | 5.54 | 5.54 | 8.74 | 11.07 | |||||
65 | 2.5 | 73 | 3.05 | 4.78 | 5.16 | 5.16 | 7.01 | 7.01 | 9.53 | 14.02 | |||||
80 | 3 | 88.9 | 3.05 | 4.78 | 5.49 | 5.49 | 7.62 | 7.62 | 11.13 | 15.25 | |||||
90 | 3.5 | 101.6 | 3.05 | 4.78 | 5.74 | 5.74 | 8.08 | 8.08 | |||||||
100 | 4 | 114.3 | 3.05 | 4.78 | 6.02 | 6.02 | 8.56 | 8.56 | 11.13 | 13.49 | 17.12 | ||||
125 | 5 | 141.3 | 3.4 | 6.55 | 6.55 | 9.53 | 9.53 | 12.7 | 15.88 | 19.05 | |||||
150 | 6 | 168.3 | 3.4 | 7.11 | 7.11 | 10.97 | 10.97 | 14.27 | 18.26 | 21.95 | |||||
200 | 8 | 219.1 | 3.76 | 6.35 | 7.04 | 8.18 | 8.18 | 10.31 | 12.7 | 12.7 | 15.09 | 18.26 | 20.62 | 23.01 | 22.23 |
250 | 10 | 273 | 4.19 | 6.35 | 7.8 | 9.27 | 9.27 | 12.7 | 12.7 | 15.09 | 18.26 | 21.44 | 25.4 | 18.58 | 25.4 |
300 | 12 | 323.8 | 4.57 | 6.35 | 8.38 | 9.53 | 10.31 | 14.27 | 12.7 | 17.48 | 21.44 | 25.4 | 28.58 | 33.32 | 25.4 |
350 | 14 | 355.6 | 6.35 | 7.92 | 9.53 | 9.53 | 11.13 | 15.09 | 12.7 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | |
400 | 16 | 406.4 | 6.35 | 7.92 | 9.53 | 9.53 | 12.7 | 16.66 | 12.7 | 21.44 | 26.19 | 30.96 | 36.53 | 40.19 | |
450 | 18 | 457.2 | 6.35 | 7.92 | 11.13 | 9.53 | 14.27 | 19.05 | 12.7 | 23.83 | 39.36 | 34.93 | 39.67 | 45.24 | |
500 | 20 | 508 | 6.35 | 9.53 | 12.7 | 9.53 | 15.09 | 20.62 | 12.7 | 26.19 | 32.54 | 38.1 | 44.45 | 50.01 | |
550 | 22 | 558.8 | 6.35 | 9.53 | 12.7 | 9.53 | 22.23 | 12.7 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | ||
600 | 24 | 609.6 | 6.35 | 9.53 | 14.27 | 9.53 | 17.48 | 24.61 | 12.7 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | |
650 | 26 | 660.4 | 7.92 | 12.7 | 9.53 | 12.7 | |||||||||
700 | 28 | 711.2 | 7.92 | 12.7 | 15.88 | 9.53 | 12.7 | ||||||||
750 | 30 | 762 | 7.92 | 12.7 | 15.88 | 9.53 | 12.7 | ||||||||
800 | 32 | 812.8 | 7.92 | 12.7 | 15.88 | 9.53 | 17.48 | 12.7 | |||||||
850 | 34 | 863.6 | 7.92 | 12.7 | 15.88 | 9.53 | 17.48 | 12.7 | |||||||
900 | 36 | 914.4 | 7.92 | 12.7 | 15.88 | 9.53 | 19.05 | 12.7 |
The 304 stainless steel pipes are one of the most used products in the piping applications. The SS 304 pipes differ in material grades, dimensions and in the finishing and mechanical properties. 304 is the most used stainless steel product. There are cold worked and annealed types of pipes in the 304 grade of steel.
There are different procedures involving the making of these different types of AISI 304 pipes. The cold worked pipes are drawn from raw material. They are not forged or formed through welding. They are drawn to shape during production. This process involves heating and allowing the material to cool while drawing it to the desired shape. There are ? hard, ? hard, ? hard and full hard types.
The cold worked SS 304 pipe could be reheated to gain temper and to increase ductility. The annealing process can be solution annealing or bright annealing. These processes involve heating of the material to certain temperature and then allowing the material to cool rapidly but not faster than the rate at which it would cool under air. The solution heat treatment on 304 grade steel can take place in the range of 1010 - 1120 degrees Celsius of heat.
ASTM A312 TP304 Mechanical Properties
Stainless Steel Gr. | 304 |
Rockwell B (HR B) maximum | 92 |
Brinell (HB) maximum | 201 |
Tensile Strength minimum (MPa) | 515 |
Yield Strength 0.2% Proof minimum (MPa) | 205 |
Elongation minimum (% in 50mm) | 40 |
Hardness | - |
SS Grade | 304 | 304N | 304LN |
---|---|---|---|
Ni | 8 – 11 | 8 – 11 | 8 – 11 |
Fe | Balance | ||
Cr | 18 – 20 | 18 – 20 | 18 – 20 |
C | 0.08 max | 0.08 max | 0.035 max |
Si | 0.75 max | 0.75 max | 0.75 max |
Mn | 2 max | 2 max | 2 max |
P | 0.040 max | 0.040 max | 0.040 max |
S | 0.030 max | 0.030 max | 0.030 max |
N | 0.10 – 0.16 | 0.10 – 0.16 |
GRADE | UNS | EN | JIS | AFNOR | BS | WERKSTOFF NR. | GOST | SS |
UNDER | USA | EUROPE | JAPAN | RUSSIAN | BRITISH | GERMAN | RUSSIAN | SWEDISH |
ASTM A312 TP 304 | S30400 | X5CrNi18-10 | SUS 304 | Z7CN18‐09 | 304S31 | 1.4301 | 08Х18Н10 | 2332 |
Nominal Pipe Size (NPS) | ASTM A312 304 Welded Pipe |
---|---|
IPS 1/4 to 1-1/2 | +.015/-.031 |
IPS 2 to 4 | +.031/-.031 |
IPS 5 to 8 | +.093/-.031 |
Density (kg/m3) | 8000 |
Product | Country | HS Code |
---|---|---|
304 Stainless Steel Pipe | Malaysia | 73049000 |
Maldives | 73042400 | |
Netherlands | 73044100 | |
Singapore | 73049000 | |
Italy | 73044100 | |
Oman | 73049000 | |
Qatar | 73041990 | |
China | 73041110 | |
United Arab Emirates (UAE) | 73041990 | |
Saudi Arabia (KSA) | 73049000 |
Company Profile

Zhongzheng Stainless Steel Co., Ltd. is a China-based manufacturer specializing in R&D, production, and distribution of stainless steel products. Established in the early 2000s, it serves industries including construction, machinery, food/medical equipment, and energy with precision tubes, sheets, profiles, and custom components.
Contact Us
- Zhongzheng Stainless Steel Co., Ltd.
- Contact nameLaijing Bu Chat Now
- AddressRoom 104-07, Building 5, Jinghu Technology Park Huanajinghu Garden, Donglihu Subdistrict Dongli District,
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