German-Standards
DIN 17456 Seamless circular austenitic stainless steel tubes for general service
DIN 17457 Welded circular austenitic stainless steel tubes subject to special requirements
DIN 17458 Seamless circular austenitic stainless steel tubes subject to special requirements
DIN 17459 Seamless circular high-temperature austenitic stainless steel tubes
DIN 28180-85 Seamless steel tubes for tubular heat exchangers
DIN EN ISO 1127 Seamless stainless steel tubes (Dimensions and weights)
EN10305-1 Steel Tubes for Precision Application-Seamless Cold Drawn Tubes
EN10305-2 Steel Tubes for Precision Application-Welded Cold Drawn Tubes
EN10305-3 Steel Tubes for Precision Application-Welded Cold Sized Tubes
EN10305-4 Steel Tubes for Precision Application-Seamless Cold Drawn Tubes for Hydraulic and Pneumatic Power Systems
EN10305-3 Steel Tubes for Precision Application-Welded and COld Sized Square and Rectangular Tubes
EN 10216-1/ DIN 17175 Seamless Steel Tubes for Pressure Purposes
EN 10216-2 Seamless Steel Tubes for Pressure Purposes-Non-alloy and alloy steel tubes with specified elevated temperature properties
EN 10216-4 Seamless Steel Tubes for Pressure Purposes
EN 10217-1 Welded Steel Tubes for Pressure Purposes-Non-Alloy Steel Tubes with specified room temperature properties-P195TR1, P235TR1,P265TR1, P195TR2, P235TR2, P265TR2
EN 10296-1 Welded Circular Steel Tubes for Mechanical and General Engineering Purpose-Non-Alloy and Alloy Steel Tubes.
Grade 304 / 304L / 304H DIN17456 DIN 17458 EN 10216-5 TC 1/2 Stainless Steel Seamless Pipe
DIN17456 DIN 17458 EN 10216-5 TC 1/2 1.4301, 1.4307, 1.4404, Stainless Steel Seamless Pipe
Final Finishing:
Solution Annealed & Pickled
Size according to ANSI B16.10: B16.19 , SCH5S, SCH10S, SCH20, SCH30, SCH40S, SCH60, SCH80S, SCH100, SCH120, SCH160, XS, XXS.
General Properties
Alloy 317LMN and 317L are molybdenum - bearing austenitic stainless steels with greatly increased resistance to chemical attack as compared to the conventional chromium - nickel austenitic stainless steels such as Alloy 304. In addition, 317LMN and 317L alloys offer higher creep, stress - to - rupture, and tensile strengths at elevated temperatures than conventional stainless steels. All are low carbon or "L" grades to provide resistance to sensitization during welding and other thermal processes. The "M" and "N" designations indicate that the compositions contain increased levels of molybdenum and nitrogen respectively. The combination of molybdenum and nitrogen is particularly effective in enhancing resistance to pitting and crevice corrosion, especially in process streams containing acids, chlorides, and sulfur compounds at elevated temperatures. Nitrogen also serves to increase the strength of these alloys. Both alloys are intended for severe service conditions such as flue gas desulfurization (FGD) systems.
MAIN PRODUCTION STANDARDS:
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STANDARD TYPE
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STANDARD
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EN
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EN10216 - 5, EN10216 - 2
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DIN
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DIN 17456, DIN 17458
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ASTM
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ASTM A312, A213, A269, A511, A789, A790 ETC
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GOST
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GOST 9941, GOST 5632
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JIS
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JIS G3459, JIS G3463
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GB
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GB/T14975, GB/T14975, GB13296, GB5310, GB9948
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Stainless Steel Seamless Pipe:
1.A999/A999M: Each pipe shall be subjected to the nondestructive electric test or the hydrostatic test, the pipe of test to be used shall be at the option of the mfg, unless otherwise specified in the PO.
2. The Pipe lengths: Unless otherwise agreed upon, all size from NPS 1/8” TO AND INCLUDING nps 8 are available in a length up to 24ft with the permitted range of 15 to 24 ft. Short length are acceptable and the number and min, length shall be agreed upon between mfg and purchaser.
3. The finished pipe shall be reasonably straight and shall have workmanlike finish, Removal of imperfections by grinding is permitted, provided the W.T are not decreased to the less than the permitted in Section 9 of Specification A999/A999M
4. Butt Weld End: According to ANSI B 16.25
5. Pipe Marking: Specified in A999/999M, include “ Logo+Standard+SIZE+Heat No.+Lot No.+H.T/E.T/U.T”
6. Packing: Each Pipe end is protected by Plastic cap. Then packed by Anti - rust steel strip, The outside of the bundle is plastic woven bag, or Plastic film.
7. Packing Mark: SIZE + STEEL GRADE+ QTY OF PIECE/WEIGHT/METRE.
Standard Specification:
ASTM A213/A213M - 11a: Standard Specification for Seamless Ferritic and Austenitic Alloy - Steel Boiler, Superheater, and Heat - Exchanger Tubes
ASTM A269 - 10: Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
ASTM A312/A312M - 12: Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
ASTM A511/A511M - 12: Standard Specification for Seamless Stainless Steel Mechanical Tubing
ASTM A789/A789M - 10a: Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
ASTM A790/A790M - 11: Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
DIN 17456 - 2010: GENERAL PUROSE SEAMLESS CIRCULAR STAINLESS STEEL TUBES.
DIN 17458 - 2010: Seamless Circular of Austenitic Stainless Steel Tube
EN10216 - 5 CT 1/2: Stainless Steel Seamless Pipe & Tube
GOST 9941 - 81: SEAMLESS COLD - AND WARM - WORKED TUBES MADE OF CORROSION RESISTANT STEEL.
Others like BS, JIS standard or can supply
Description:
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Mechanical Property
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Material Item
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304
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304L
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304
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316L
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Top Technology
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Tensile Strength
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≥ 520
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≥ 485
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≥ 520
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≥ 485
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Yield Strength
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≥ 205
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≥ 170
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≥ 205
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≥ 170
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Extension
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≥ 35%
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≥ 35%
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≥ 35%
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≥ 35%
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Hardness (HV)
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< 90
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< 90
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< 90
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< 90
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Application:
- Food processing equipment, particularly in beer brewing, milk processing & wine making.
- Kitchen benches, sinks, troughs, equipment and appliances
- Architectural panelling, railings & trim
- Chemical containers, including for transport
- Heat Exchangers
- Woven or welded screens for mining, quarrying & water filtration
- Threaded fasteners
- Springs
- Ship building, onshore , offshore, Maire.
- Others
Hebei shengtian pipe-fitting group Co., ltd.deal with DIN 17456 Seamless Stainless Steel Round pipes,
stainless steel seamless pipe and tube already more than 30 years, every year sell more than 80000 tons of stainless steel seamless pipe and tube. Our client already cover more than 45 countries. 
