8 Singapore 
5 India 
4 Ukraine 
3 Brazil 
2 Vietnam 
2 Australia 
2 UK 
2 China 
1 Germany 
1 Hong Kong 
Allianz Steel Group
- Address: 25th floor, C3 Building, Wanda Plaza, Kaifu District, Changsha, Hunan , China
- Email:
- Phone: +8617773160488
Business description
allianz steel group was established in1996，and ronsco as our brand was built in 2014.as a stainless steel supplier with 26 years experience, we have a professional service team to provide high standard products mainly including: stainless steel pipe, stainless steel sheet, stainless steel coil, and stainless steel bar.
based on our reliable technical support, timely and qualified delivery, customs clearance assistance, and careful after-sales services.
we have won the long-term cooperation of thousand of customers all over the world.
after 26 years of development, ronsco has now grown up to over 200 employees, half of whom have worked in stainless steel industry for more than 10 years.
besides, we possess 15 product experts and experienced technicians to ensure the product quality.
according to ronsco anual report, our anual sales is about 20000 tons and our regular stocks are 3000 tons.
benefit from strategic cooperation with world-famous manufacturers such as tisco, and bao steel, we have provided over 1,000 customers from more than 80 countries and earned a high reputation throughout the world.
ronsco has always adhered to the “customer-oriented” business philosophy and made every effort to meet customer requirements and pursue a win-win cooperation with customers.
our products:
stainless steel seamless pipe
stainless steel welded pipe
nickel alloy seamless pipe
nickel alloy welded pipe
stainless steel plates & coils
stainless steel bars
stainless steel profiles
pipe fittings and flanges
fabrication center
Latest listings
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Stainless Steel 431 PlateMetals - Stainless Steel - Allianz Steel Group - China - April 27, 2025 - 1.00 Dollar US$Product Name: AISI 431 ( EN 1.4057, UNS S43100 ) Stainless Steel Plates & Sheets Equivalent Materials: AISI 431, UNS S43100 , EN / W Nr 1.4057, SUS431, X17CrNi16-2 Type: Cold drawn, Hot rolled, Forged Shape: Round Bar, Flat Bar, Forged Bar, Brigh...
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Duplex 2205 PipeMetals - Stainless Steel - Allianz Steel Group - China - April 27, 2025 - 1.00 Dollar US$Product Name: Duplex 2205 Stainless Steel Seamless Pipe, UNS S31803 Tubes and Pipes Equivalent Materials: SAF 2205, AISI 2205, UNS S32205/S31803, EN/W Nr 1.4462, F51, X2CrNiMoN22-5-3 Type: Seamless Shape: Square / Rectangular / Round / Special-shaped...
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Stainless Steel 431 Round BarMetals - Stainless Steel - Allianz Steel Group - China - April 27, 2025 - 1.00 Dollar US$Product Name: AISI 431 (UNS S43100, 1.4057) Stainless Steel Round Bar Equivalent Materials: AISI 431, UNS S43100, SUS431, DIN / W Nr 1.4057, X17CrNi16-2 Type: Cold drawn, Hot rolled, Forged Shape: Round bar, Flat Bar, Square bar, Hexagonal bar, Octag...
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Nickel Alloy 625 PipeMetals - Alloy Steel - Allianz Steel Group - China - April 20, 2025 - 1.00 Dollar US$Product Name: AISI 431 (UNS S43100, 1.4057) Stainless Steel Round Bar Equivalent Materials: AISI 431, UNS S43100, SUS431, DIN / W Nr 1.4057, X17CrNi16-2 Type: Cold drawn, Hot rolled, Forged Shape: Round bar, Flat Bar, Square bar, Hexagonal bar, Octag...
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Incoloy 825 PipeMetals - Alloy Steel - Allianz Steel Group - China - April 20, 2025 - 1.00 Dollar US$characteristic as below 1. excellent corrosion resistance of different kinds of media in both oxidation and reduction environments. 2. excellent resistance of pitting and crevice corrosion, and won't happen stress corrosion cracking because of chlori...
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Alloy 400 PipeMetals - Alloy Steel - Allianz Steel Group - China - April 20, 2025 - 1.00 Dollar US$product name: monel alloy 400 (uns n04400/2.4360) seamless pipes & tubes equivalent materials: alloy 400, uns n04400, w-nr 2.4360, ni68cu28fe type: seamless shape: square / rectangular / round standard: astm b 164 (rods, wires), astm b 564 (forgi...
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Duplex 2507 Stainless Steel PlateMetals - Stainless Steel - Allianz Steel Group - China - April 14, 2025 - 1.00 Dollar US$saf2507(1.4410/uns s32750) is a ferritic-austenitic (duplex) stainless steel, which combines many of the most beneficial properties of ferritic steel and austenitic steel, because the steel contains high chromium and molybdenum therefore, it has exce...
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Nitronic 50 Round BarMetal Manufacturing - Allianz Steel Group - China - April 14, 2025 - 1.00 Dollar US$product name：nitronic 50 round bar type：cold drawn, hot rolled, forged shape：round bar, flat bar, square bar, hexagonal bar, octagonal bars standard：astm a182, a193/4, a276, a479 diameter：6mm - 600mm finish：bright, pickling, black, polished, packing：...
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En 1.4462 Stainless Steel PipeMetals - Stainless Steel - Allianz Steel Group - China - April 14, 2025 - 1.00 Dollar US$product name：en 1.4462 duplex stainless steel pipe type：welded shap e：square / rectangular / round standard：gb, aisi, astm, din, en, jis out diameter：welded pipe 1.9mm - 5000mm or customized thickness：w elded pipe 0.5mm - 80mm or customized max lengt...
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904l Stainless Steel Seamless PipePipes / Tubing - Allianz Steel Group - China - April 14, 2025 - 1.00 Dollar US$product name：904l stainelss steel pipe equivalent materials：aisi 904l, uns n08904, din 1.4539, aisi 904l, sus 890l, nas 255, 00cr20ni25mo4.5cu, x1nicrmocu25-20-5 type seamless shape：square / rectangular / round standard：gb, aisi, astm, din, en, jis ...
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