ASTM A213 254 SMO Seamless Tubes

‌ASTM A213 254 SMO Seamless Tube‌ is a high-end, molybdenum and nitrogen containing, low carbon, super austenitic stainless steel that offers excellent uniform corrosion resistance to pitting, crevice corrosion, stress corrosion cracking and corrosion fatigue.
254 SMO stainless steel heat exchanger tubes are much stronger than ordinary austenitic grades, almost twice as strong as 300 series stainless steels, and feature high ductility and impact strength‌.

Chemical Composition of ASTM A213 SMO 254 Stainless steel boiler tube

C	Si	Mn	P	S	Cr	Ni	Mo	N	Cu
≤0.020	≤0.80	≤1.00	≤0.030	≤0.010	20	18	6.1	0.20	0.7

Mechanical Properties of ASTM A213 SMO 254 Stainless steel heat exchanger tubes

Properties	Metric	Imperial
Tensile strength	680 MPa	98600 psi
Yield strength	300 MPa	43500 psi
Modulus of elasticity	195 GPa	28300 ksi
Shear modulus	75 GPa	10900 ksi
Poisson's ratio	0.30	0.30
Elongation at break	50 %	50 %
Hardness, Brinell	210	210

Product Name：ASTM A213 254 SMO Seamless Tubes
Manufacture：welded process,
Outside Diameter：12.7mm——127mm
Wall thickness：0.9mm——12.7mm
Length：6000mm、12000m or specified length as require

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