chemical composition | 44660 | 445J2 | 444 |
C | ≤0.03 | ≤0.025 | ≤0.025 |
S | ≤0.03 | ≤0.03 | ≤0.03 |
P | ≤0.04 | ≤0.04 | ≤0.04 |
Mn | ≤1.0 | ≤1.0 | ≤1.0 |
Si | ≤1.0 | ≤1.0 | ≤1.0 |
Cr | 25-28 | 21-24 | 17-20 |
Ni | 1.0-3.5 |
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 |
Ferritic stainless steel (400 Series) has a chromium content of 15%~30% and has a bcc structure.
It has the characteristics of large thermal conductivity, small expansion coefficient,
good oxidation resistance and excellent resistance to stress corrosion.
Ferritic stainless steel is an excellent substitute material in many applications of austenitic stainless steel (300 Series).
Ferritic stainless steel contains
no nickel, the main elements are chromium and iron,
and chromium is a particularly corrosive element of stainless steel.
Ferrite price is not only low and stable, so it has been widely applied in industry.
▶ 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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