Pipe material c/w NACE MR0175

How to verify material A106 grade B comply with Nace MR 0175.

Addition to verify: delivery condition and hardness survey.

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How to verify fittings?

Hardness requirements for parent metal.

Para. 7.3 and Annex A2.1 in NACE MR 0175-2 2015: carbon steel and low alloy steel
Para. 6.2 in NACE MR 0175-3 2015: corrosion-resistant alloys

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Carbon and low-alloy steels are acceptable at 22 HRC maximum hardness provided they contain less than 1 % mass fraction nickel, are not free-machining steels and are used in one of the following heat-treatment conditions:
a) hot-rolled (carbon steels only);
b) annealed;
c) normalized;
d) normalized and tempered;
e) normalized, austenitized, quenched, and tempered;
f) austenitized, quenched, and tempered

Carbon steels acceptable with revised or additional restrictions
In addition to the restrictions of A.2.1.2, some carbon steels are acceptable subject to the following revised or additional restrictions.
a) Forgings produced in accordance with ASTM A105 are acceptable if the hardness does not exceed 187 HBW.
b) Wrought pipe fittings to ASTM A234, grades WPB and WPC are acceptable if the hardness does not exceed 197 HBW.

Here are sample test report
Flange’s mill certificate




These mill should remark heat treatment method.

Annealed at 1060 deg. C/ 1mm WT, and rapid cooling in cold water.

Yes, should include in test report.
All of reports stated heat treatment by normalized, annealed.

Here is the step by step to review MTC ASTM A106 Gr. B