A seamless pipe, as the name suggests, is a pipe without a seam or a weld-joint. Seamless pipes are thought to be able to withstand higher pressure, higher temperatures, higher mechanical stress and a corrosive atmosphere. It can be found in a wide range of applications such as in oil and gas, refinery, petrochemical, chemical, fertilizer, power, automotive, bearing, mechanical and structural.
It is the resistance of air, steam, water and other weak corrosive media and acid, alkali, salt and other chemical etching medium corrosion of steel pipes. Also known as acid - resistant stainless steel. It will be more and more engineering use and become increasingly popular, and prospects.
The production of our seamless steel pipes is tightly regulated and all of the pipes we stock have been fully tested to international standards to ensure we only supply the highest quality products.
We offer
Our seamless pipes are manufactured in l in accordance with:
Dimensions in accordance with:
Seamless stainless steel pipe is a hollow steel bar, a large number of pipes used for conveying fluids, such as oil, gas, water, gas, steam,heat exchanger,mechinical machine.
| Product Name | Executive | Dimension | Steel Code / Steel Grade |
| Seamless Austenitic Stainless Steel Pipes | ASTM A312, A312M ASME SA312 / SA312M | OD: 1/4"-20" WT: SCH5S-SCH80S |
TP304, TP304L, TP304H, TP310, TP310S, TP316, TP316L, TP316Ti, TP317, TP317L, TP321, TP321H, TP347, TP347H |
| Seamless Austenitic Stainless Steel Tubing for General Service | ASTM A269 ASME SA269 | OD: 6.0-50.8mm WT: 0.8-10.0mm |
TP304, TP304L, TP304H, TP310, TP310S, TP316, TP316L, TP316Ti, TP317, TP317L, TP321, TP321H, TP347, TP347H |
| Seamless Austenitic Alloy-Steel Boiler, Super Heater and Heat-Exchanger Tubes | ASTM A213 / A213M ASME SA213 / SA213M | OD: 6.0-50.8mm WT: 0.8-10.0mm |
TP304, TP304L, TP304H, TP310, TP310S, TP316, TP316L, TP316Ti, TP317, TP317L, TP321, TP321H, TP347, TP347H |
| Seamless Duplex Stainless Steel Tubing for General Service | ASTM A789 / A789M | OD: 19.0-60.5mm WT: 1.2-5.0mm |
S31803, S32205, S32750 |
| Seamless Duplex Stainless Steel Pipes | ASTM A790 / A790M | OD: 3/4"-10" WT: SCH5S-SCH80S |
S31803, S32205, S32750 |
| Seamless Stainless Steel Mechanical Tubing | ASTM A511 | OD: 6.0-50.8mm WT: 0.8-10.0mm |
MT304, MT304L, MT304H, MT310, MT310S, MT316, MT316L, MT317, MT317L, MT321, MT321H, MT347 |
| Seamless Stainless Steel Tubes for Pressure Purposes | EN 10216 DIN 17456, 17458 | OD: 6.0-530.0mm WT: 0.8-34.0mm |
1.4301, 1.4307, 1.4541, 1.4401, 1.4404, 1.4571, 1.4878, 1.4432, 1.4462 |
| Steel Grade | C% Max. | Si% Max. | Mn% Max. | P% Max. | S% Max. | Cr% Max. | Ni% Max. | Mo% Max. | Ti %马克斯。 | Other |
| SUS 304 | 0.08 | 1.0 | 2.0 | 0.045 | 0.03 | 18.0-20.0 | 8.0-10.5 | - | - | - |
| SUS 304L | 0.03 | 1.0 | 2.0 | 0.045 | 0.03 | 18.0-20.0 | 9.0-13.0 | - | - | 铜:1.0 - -3.0 |
| SUS 310S | 0.08 | 1.5 | 2.0 | 0.045 | 0.03 | 24.0-26.0 | 19.0-22.0 | - | - | - |
| SUS 316L | 0.03 | 1.0 | 2.0 | 0.045 | 0.03 | 16.0 - -18.0 | 12.0-15.0 | 2.0-3.0 | - | - |
| SUS 321 | 0.08 | 1.0 | 2.0 | 0.045 | 0.03 | 17.0-19.0 | 9.0-13.0 | - | 5XC MIN | - |
| Steel Grade | N/mm2MIN. 拉应力 |
N/mm2MIN. Proof Stress |
Elongation MIN. | HRB MAX. Hardness | Bendability:Bending Angle | Bendability:Inside Radius |
| SUS 304 | 520 | 205 | 40 | 90 | No Require | - |
| SUS 304L | 480 | 175 | 40 | 90 | No Require | - |
| SUS 310S | 520 | 205 | 40 | 90 | No Require | - |
| SUS 316L | 480 | 175 | 40 | 90 | No Require | - |
| SUS 321 | 520 | 205 | 40 | 90 | No Require | - |
Also known as "marine grade" stainless steel due to its increased ability to resist saltwater corrosion compared to type 304. SS316 is often used for building nuclear reprocessing plants.
304 Stainless is a low carbon (0.08% max) version of basic 18-8 also known as 302.
Type 316 is more resistant to atmospheric and other mild environments than Type 304.
310年代不锈钢has excellent resistance to oxidation under constant temperatures to 2000°F.
317L is a molybdenum bearing austenitic chromium nickel steel similar to type 316, except the alloy content in 317L is somewhat higher.
Type 321 is basic type 304 modified by adding titanium in an amount at least 5 times the carbon plus nitrogen contents.
Type 410 is a martensitic stainless steel which is magnetic, resists corrosion in mild environents and has fairly good ductility.
2205双(不成功)S31803母材, or Avesta Sheffield 2205 is a ferritic-austenitic stainless steel.
Duplex 2507 (UNS S32750) is a super duplex stainless steel with 25% chromium, 4% molybdenum..
UNS S32760 is described as a super duplex stainless with a microstructure of 50:50 austenite and ferrite.
ASTM A269 / A269M Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
ASME SA 249 Standard Specification for Welded Austenitic Steel Boiler,
Superheater, Heat-Exchanger, and Condenser Tubes.
904L stainless steel consists of chromium, nickel, molybdenum and copper contents, these elements give type 904L stainless steel excellent properties
Stainless steel seamless pipe can resist high temperatures for cleanliness and maintain the purity of materials which contact stainless steel directly. Stainless steel pipe and tubing are used in chemical plants, aviation fields, marine equipment, cryogenic transportation, medical and architectural industries.
304 (0Crr18Ni9)Seamless stainless steel pipe
First, the thicker the wall thickness of the product, it is more economical and practical, the wall thickness of the thinner, its processing costs will rise substantially;
Secondly, the process of the product determines its limitations, the low accuracy of the general seamless tube: non-uniform wall thickness, the appearance of low brightness tube, the high cost of fixed length, and within the appearance of pitting, black spots difficult to remove; Third, the detection and plastic must be offline processing. So it is at high pressure, high strength, the mechanical structure timber reflects its superiority.
The corrosion resistance of stainless steel seamless pipe depends on the alloying elements contained in the steel. Chromium is the basic elements of corrosion resistance for the stainless steel, about 12% the amount of chromium in the steel, chromium and oxygen role in the corrosive medium, the steel surface to form a thin oxide film (passive film) matrix can prevent the steel from further corrosion. Removing chromium, stainless steel seamless pipe commonly used alloying elements there are nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., to meet the requirements of the various uses of the organization and performance of stainless steel.
Capped end stainless steel tube
Tubes putted in wooden boxes
The wooden boxes packing for stainless products
Warehouse
Pipe size range:
Stainless steel is one of the more standardized materials in the building and engineering industries.
