chemical composition | 304 | 304L | 316 | 316L |
C | ≤0.07 | ≤0.03 | ≤0.08 | ≤0.03 |
S | ≤0.03 | ≤0.03 | ≤0.03 | ≤0.03 |
P | ≤0.035 | ≤0.035 | ≤0.035 | ≤0.035 |
Mn | ≤2.0 | ≤2.0 | ≤2.0 | ≤2.0 |
Si | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 |
Cr | 17-20 | 17-20 | 16-18 | 16-18 |
Ni | 8--12 | 8--12 | 12--16 | 12--16 |
ASTM A688 | water heater with austenitic stainless steel welded pipe |
ASTM A803 | water heater in ferritic stainless steel welded pipe |
ASTM A790 | ferritic austenitic stainless steel seamless pipe and welded pipe |
ASTM A651 | water use stainless steel tube |
ASTM A249 | boiler super-heater, heat ex-changer and condenser with austenitic steel welded steel pipe |
ASTM A312 | austenitic stainless steel seamless pipe and welded pipe |
ASTM A268 | general seamless and welded ferritic and martensitic stainless steel pipe |
ASTM A269 | general requirements for general purpose austenitic alloy steel pipe |
ASTM A1016 | ferritic steel and austenitic steel pipe general requirements |
ASTM E92 | vickers harness test method of metal material |
ASTM E309 | tubular steel magnetic saturation eddy current inspection of practical discipline |
ASTM A763 | ferritic stainless steel inter-granular corrosion sensitivity of the method |
ASTM G48 | ferric chloride solution is used to test the pitting corrosion and crevice corrosion resistant alloy and stainless steel standard test methods |
GB/T 30065-2013 | water heater with ferritic stainless steel welded steel pipe |
GB/T 30066-2013 | heater ex-changer and condenser with ferritic stainless steel welded steel pip |
GB/T 21832-2008 | austenitic, ferritic duplex stainless steel welded tube |
GB/T 2771-2008 | fluid conveying by stainless steel welded pipe |
GB/T 24593-2009 | austenitic stainless steel welded tubes for heat exchanger |
GB/T 228 | metal material tensile test at room temperature |
GB/T 232 | Metal material bending test method of GB/T 232 |
GB/T 241 | metal pipe hydraulic test method |
GB/T 242 | metal tube flaring test method |
GB/T 245 | metal edge test method |
GB/T 246 | metal tube flattening test method |
GB/T 2102 | steel pipe acceptance, packing, mark and quality certificate |
GB/T 4334.5 | sulfuric acid stainless steel - copper sulfate corrosion test method |
GB/T 6394 | metal average grain size determination method |
GB/T 7735 | steel tube eddy current testing method |
GB/T 30065-2013 | water heater with ferritic stainless steel welded steel pipe |
GB/T 30066-2013 | heater ex-changer and condenser with ferritic stainless steel welded steel pip |
JIS G3463-2006 | stainless steel pipe for boiler heat ex-changer |
Austenitic stainless steel is stainless steel with austenitic structure at high temperature and normal temperature.
The steel contains about Cr of about 18%, Ni 8%~10% and C about 0.1%, and has stable austenite structure.
Austenitic chromium nickel stainless steel includes the famous 18Cr-8Ni steel
and the high Cr-Ni series steel which is developed on this basis by adding Cr, Ni content and adding Mo, Cu, Si,
Nb, Ti and other elements.
Austenitic stainless steel is non magnetic and has high toughness and plasticity, but its strength is low.
It is impossible to strengthen it by phase change. It can only be strengthened through cold processing,
such as adding S, Ca, Se, Te and other elements. It has good cutting ability.
▶ PACKAGGING & DELIVERY
● Be wrapped with polyvinyl chloride film
● Stick label on the both end
Each Piece in polybag and several pieces per bundle,or according to customer's request
● Delivery time:25-30 days after receiving deposit
● Shipping details: Generally,the delivery time is 3-10 days for the sample ,about 25-35 for mass production
▶ PAYMENT TERM
● We can also provide different payment terms (L / C, T / T, CIF,PayPal, Western Union)
● WELDED PIPE
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