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N70MFVН70МФВ (ЭП814А)

Welded equipment for hot hydrochloric, sulfuric and phosphoric acid and other reducing media; resists intergranular corrosion (GOST 5632)

GOST alloysNi corrosion-resistant
Units

Chemical composition

Ni 70%Mo 26%V 1.5%W 0.27%Minor & residual 1.9%

Nominal: mid-range where both limits are given, the cap where only a maximum is, balance takes the remainder. Exact specified ranges below.

ElementName Content %
Main elements4 elements
Ni NickelBal.
Mo Molybdenum25 – 27%
V Vanadium1.4 – 1.7%
W Tungsten0.1 – 0.45%
ElementName Content %
Minor & residual8 elements
Fe Iron≤ 0.8%
Cr Chromium≤ 0.3%
Ti Titanium≤ 0.15%
C Carbon≤ 0.02%
Si Silicon≤ 0.1%
Mn Manganese≤ 0.5%
S Sulphur≤ 0.012%
P Phosphorus≤ 0.015%

Where this grade is recommended

Not yet in the condition-scoring matrix. Send us your service conditions and we will advise on a like-for-like basis.

Designations & equivalents

Latin transliterationN70MFV

Cross-references are common near-equivalents for search and shortlisting; substitution across standards requires clause-by-clause verification. All grades in one cross-reference table →

Applicable standards

Name the standard and its edition on the order.

Frequently asked questions

What is Н70МФВ (ЭП814А) · UNS N70MFV?

Н70МФВ (ЭП814А) · UNS N70MFV — Ni corrosion-resistant. Welded equipment for hot hydrochloric, sulfuric and phosphoric acid and other reducing media; resists intergranular corrosion (GOST 5632)

Which standards cover N70MFV?

GOST 5632-2014

In which forms is N70MFV available?

Tube, plate, strip, bar, forgings, wire and other forms — sizes and delivery condition confirmed per order, with EN 10204 3.1 / 3.2 certification.

Same series

Download PDF datasheet

This grade’s datasheet as an A4 PDF — for filing, printing or forwarding to colleagues.

Download PDF datasheet

Supply & enquiry

Tube & pipeφ1 – 219 × 0.25 – 25 mmPlate4.76 – 80 mmBarφ8 – 300 mmWire & filler metalsφ0.01 – 8 mm

For this grade we can supply, against your service conditions:

Or email us: info@kochlin.com