After years of development. ZHEHENG STEEL has been fully capable of producing according to the worldwide DIN. EN. ASTM. ASME. JIS. GOST stainless steel standard. The following is the standard we often produce.

ASTM STANDARD 
1. A 213/A 213M – 04 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler.  Superheater.  and Heat-Exchanger Tubes
2. A 249/A 249M – 01 Standard Specification for Welded Austenitic Steel Boiler.  Superheater.  HeatExchanger.  and Condenser Tubes
3. A 269 – 08 Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
4. A 270 – 98a Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing 
5. A 409/A 409M – 01 Standard Specification for Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
6. A 554 – 98 Standard Specification for Welded Stainless Steel Mechanical Tubing
7. A 778 – 01 Standard Specification for Welded,Unannealed Austenitic Stainless Steel Tubular Products 
8. A 240/A 240M – 09a Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate. Sheet.  and Strip for Pressure Vessels and for General Applications
9. A 249/A 249M – 08 Standard Specification for Welded Austenitic Steel Boiler.  Superheater.  Heat Exchanger.  and Condenser Tubes
10.  A 276 – 06 Standard Specification for Stainless Steel Bars and Shapes
11. A312/A312M − 15a Standard Specification for Seamless, Welded,and Heavily Cold Worked Austenitic Stainless Steel Pipes
12. A312/A312M − 17 Standard Specification for Seamless.  Welded.  and Heavily Cold Worked Austenitic Stainless Steel Pipes 
13.  A 314 – 97 Standard Specification for Stainless Steel Billets and Bars for Forging
14.  A 370 – 05 Standard Test Methods and Definitions for Mechanical Testing of Steel Products
15.  A 450/A 450M – 04a Standard Specification for General Requirements for Carbon.  Ferritic Alloy.  and Austenitic Alloy Steel Tubes
16.  A 480/A 480M – 06a Standard Specification for General Requirements for Flat-Rolled Stainless and Heat Resisting Steel Plate, Sheet, and Strip
17.  A 484/A 484M – 08 Standard Specification for General Requirements for Stainless Steel Bars.  Billets.  and Forgings 
18.  A511/A511M − 15a Standard Specification for Seamless Stainless Steel Mechanical Tubing
19.  A 554 – 03 Standard Specification for Welded Stainless Steel Mechanical Tubing
20.  A 688/A 688M – 04 Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes
21.  A 789/A 789M – 05a Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
22.  A 790/A 790M – 05a Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
23.  A 928/A 928M – 04 Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal
24.  E 112 – 96 Standard Test Methods for Determining Average Grain Size
25. E 213 – 04 Standard Practice for Ultrasonic Examination of Metal Pipe and Tubing
26. E 426 – 98 Standard Practice for Electromagnetic (Eddy-Current) Examination of Seamless and Welded Tubular Products.  Austenitic Stainless Steel and Similar Alloys
27.  A 182/A 182M – 02 Standard Specification for Forged or Rolled Alloy-Steel Pipe Flanges.  Forged Fittings. and Valves and Parts for High-Temperature Service
28.  A 249/A 249M – 04 Standard Specification for Welded Austenitic Steel Boiler,Superheater.  Heat Exchanger,and Condenser Tubes
29. ASTM A 409/A 409M - 95a Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service

DIN . EN STANDARD

1. BS EN 1092-1:2007 Flanges and their joints — Circular flanges for pipes,Valves,fittings and accessories,PNdesignated
2. BS EN 10088-2:2005 Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
3. BS EN 10253-2:2007 Non alloy and ferritic alloy steels with specific inspection requirements
4. BS EN 10222-2:2000 Steel forgings for pressure purposes

Zheheng Steel as a stainless steel pipe supplier and manufacturer,specialized in the area of stainless steel tubing,pipe fittings,valves and other stainless steel grade accessories.Competitive price and excellent service, welcome to contact with us and get quote quickly!