Austenitic stainless steel refers to the stainless steel with chromium nickel as the main alloy element and has austenitic structure at room temperature. The stable austenitic structure is obtained when Cr, Ni and C are about 18%, 8%~10% and 0.1% respectively. Austenitic chromium-nickel stainless steel includes the well-knew 18CR-8Ni steel and the high Cr-Ni series steel developed by adding elements such as Mo, Cu, Si, Nb, Ti and so on.
Austenitic stainless steel is nonmagnetic and has good mechanical properties (high toughness and malleability), easy to be machined, stamped and welded. High chromium content greatly improves the corrosion resistance of steel, because the surface is easy to form a very dense and hard chrome oxide protective film. In the oxidizing environment, it has good corrosion resistance, heat resistance and low temperature resistance, suitable for heavy load and no high requirements corrosion resistance equipment and components, and has a very wide range of uses especially in civil, light industry and other fields.
Grads:304, 304L, 316, 316L, 310S, 321, 321H, 347, 347H
Chinese Standards: GB/T 12771-2019, GB/T 24593-2018, HG/T 20537.1~4-1992
American Standards: ASTM A312-21, ASTM A358-19, ASTM A249-18, ASTM A778-16, ASTM A813-14, ASTM A1016-18ï¼?
European standards: EN10217-7: 2021.
Super Austenitic stainless steel is a type of alloy content (MO, CR, Ni, N, etc.) significantly higher than that of ordinary austenitic stainless steel. It is one of the important directions for the development of high -quality special stainless steel. The typical of Super Austenitic stainless steel containing 6%molybdenum and 7%molybdenum.The synergy of CR, MO and N make Super Austenite stainless steel in acidic acid -containing has a very excellent anti -uniform corrosion performance. Under the conditions of seawater, gap, and low -speed scouring, it has good erosive resistance (Pren 56) and better resistant to resistance. Especially for sulfuric acid root ions, chloride ions and other acid root ions, it can be used in a very harsh working environment. In addition, Super austenitic Stainless Steel also has excellent comprehensive mechanical performance. Therefore, these steels are widely used in very harsh service environments such as flue gas treatment equipment, nuclear power industry, pharmaceutical engineering, pulp bleach, phosphate fertilizer and fertilizer industry, marine industry and waste treatment. American standard: ASTM A312-21 ASTM A358-19 ASTM A249-18 European standard: EN10217-7: 2021
01) Commodity name: seamless austenitic stainless steel tubing for general purposes 02) Process method: cold drawn, cold rolling 03) Surface finish: annealed/manual polished/mechanical polished 04) Material: TP304, TP304L, TP310/S, TP316L, TP316/TP316L dual grade, TP317L, TP321, TP347 05) Standards: ASTM A269/M 06) Size: a) O.D.: 6mm to 80mm b) W.T.: 0.89mm, 1mm, 1.5mm, 2mm, 2.5mm and 3mm 07) Delivery conditions: annealed & pickled 08) Applications: for instrumentation service 09) Packing: plastic bag for each piece then packed in seaworthy wooden cases 10) Min order quantity: 10 metric tons or upon negotiation 11) Delivery date: According to order
Cp01 Commodity: austenitic stainless steel seamless pipe 01) process method: cold drawn/cold pilgered 02) surface finish: annealed & pickled /manual polished/mechanical polished 03) ends: plain ends/ bevelled ends acc. To ansi b.16.25 04) material: tp304, tp304l, tp310/s, tp316, tp316l, tp316/316l dual grade, tp317l, tp321, tp347/h 05) standards: astm (asme) sa/a312/m 06) size: A) nps: 1/8" to 10" B) schedule: 5/5s, 10/10s, 20/20s, 40/40s, 80/80s, 120/120s, 160/160s, acc. To ansi b36.19/36.10 C) o.D.: 0.405" to 10" (10.27mm-273.5mm) D) w.T.: 0.049" to 1.125"(1.24mm-28.58mm) 07) length: max.11 meters 08) delivery conditions: annealed & pickled 09) applications: for fluid and gas transport; structure and machining A) general service (petroleum, food, chemical, paper, fertilizer, fabric, aviation and nuclear) B) fluid, gas and oil transport C) pressure and heat transmission D) construction and ornament 10) packing: plastic bag for each piece then packed in seaworthy wooden cases 11) min order quantity: 5 metric tons or upon negotiation 12) delivery date: min. 45 days Plastic bag for each piece then packed in seaworthy wooden cases
01) Commodity name: welded austenitic stainless steel pipes & tubes 02) Process method: tig & plasma-welded 03) Surface finish: annealed/manual polished/mechanical polished 04) Material: 304, 304l, 310/s, 316l, 316/316l dual grade, 317l, 321, 347. 05) Standards: astm a 249/m, astm a 554/m, jis 3463, jis 3468, en 10217-7, din 17455/57, astm a 269/m, astm a 312/m, astm a 778/m, astm a 789, astm a 790, jis 3463, jis 3468, en 10217-7, din 17455/57, gb/t 12771/12770 06) Specifications: a) o.D.: 16mm -630mm B)w.T. : 0.5mm¿c 12mm C)length: customized 07) Delivery conditions: annealed & pickled 08) applications: for general service, for fluid and gas transport; structure and machining, oil and gas service, chemical and fertile. 09) packing: simple package by weaving bags. (or as per the customerí»s request by weaving bags For each piece then packed in seaworthy wooden case)
01) commodity name: austenitic stainless steel coil pipes & tubes 02) process method: cold drawn/cold pilgered 03) material: tp304, tp304l, tp316, tp316l, dual grade 317l , 316ti, tp321 04) standard: astm ( asme) , en, din, jis and etc. 05) Specifications: a) o.D.: 1/4í¦ -3/4í¦ B) w.T. : 0.028í¦- 0.065í¦ C) length: customized 06) delivery conditions: annealed & pickled 07) applications: widely used in petrol, chemical, pharmacy, foodstuff, machinery, spaceflight, war industry, boiler gas, hot water heating parts, hardware, shipping, power and other industries. Packing: packed by weaving bags in bundles, then protected by seaworthy wooden case.
Seamless stainless steel pipe Features: 1) commodity: seamless stainless steel pipe/tube 2) process method: cold drawn/cold rolled 3) surface finish: anneal/pickling/manual polish/ mechanical polish 4) material: tp304, tp304h, tp304ln, tp304l, tp310/s, tp316l, tp316h, tp316/316l, tp317l, tp321/321h, tp347, s31803 and so on. 5) standards: astm a312/213/269, din17457, en10216 , etc. 6) size: A) nps: 1/8" to 10" B) schedule: 5/5s, 10/10s, 20/20s, 40/40s, 80/80s, 120/120s, 160/160s, acc. To ansi b36.19/36.10 C) o. D.: 6 mm to 219 mm D) w. T.: 0.5 mm to 25 mm 7) length: max. 20 meters 8) delivery conditions: annealled, picklinged and polished 9) packing: seaworthy wooden cases/steel framed cases/ simple packaging 10) certificate: iso 9001:2000, ped, tuv Packing: seaworthy wooden cases/steel framed cases/ simple packaging
Seamless stainless steel pipe Features: 1. Commodity: seamless stainless steel pipe/tube 2. Process method: cold drawn/cold rolled 3. Surface finish: anneal/pickling/manual polish/ mechanical polish 4. Material: tp304, tp304h, tp304ln, tp304l, tp310/s, tp316l, tp316h, tp316/316l, tp317l, tp321/321h, tp347, s31803 and so on. 5. Standards: astm a312/213/269, din17457, en10216 , etc. 6. Size: A) nps: 1/8" to 10" B) schedule: 5/5s, 10/10s, 20/20s, 40/40s, 80/80s, 120/120s, 160/160s, acc. To ansi b36.19/36.10 C) o. D.: 6 mm to 219 mm D) w. T.: 0.5 mm to 25 mm 7. Length: max. 20 meters 8. Delivery conditions: annealled, picklinged and polished 9. Packing: seaworthy wooden cases/steel framed cases/ simple packaging 10. Certificate: iso 9001:2000, ped, tuv 9. Packing: seaworthy wooden cases/steel framed cases/ simple packaging
Features: 1) Commodity: Seamless stainless steel pipe/tube 2) Process method: Cold drawn/cold rolled 3) Surface finish: Anneal/pickling/manual polish/ mechanical polish 4) Material: TP304, TP304H, TP304LN, TP304L, TP310/S, TP316L, TP316H, TP316/316L, TP317L, TP321/321H, TP347, S31803 and so on. 5) Standards: ASTM A312/213/269, DIN17457, EN10216 , etc. 6) Size: A) NPS: 1/8" to 10" B) Schedule: 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S, acc. To ANSI B36.19/36.10 C) O. D.: 6 mm to 219 mm D) W. T.: 0.5 mm to 25 mm 7) Length: Max. 20 meters 8) Delivery conditions: Annealled, Picklinged and Polished 9) packing: Seaworthy wooden cases/steel framed cases/ simple packaging 10) Certificate: ISO 9001:2000, PED, TUV packing: Seaworthy wooden cases/steel framed cases/ simple packaging
01) Commodity name: austenitic stainless steel u-formed pipes & tubes 02) Process method: cold drawn/cold pilgered 03) Material: tp304, tp304l, tp316, tp316l, tp321 04) Standard: astm ( asme) , en, din, jis and etc. 05) Specifications: a) o.D.: 10mm -219mm B) W.T. : 1mmíºc 13mm C) Length: customized 06) Delivery conditions: annealed & pickled 07) Applications: widely used to manufacture outdoor equipment building materials, heat resistant parts, and parts that are difficult to make heat treatment for chemical, coal, petroleum industries. 08) Packing: packed by weaving bags in bundles, then protected by seaworthy wooden case.
