CF8 / 1.4308 Stainless Steel Investment Casting

CF8 (ASTM A351 / A743) and 1.4308 – GX5CrNi19-10 (EN 10283) are the cast counterparts of 304 stainless steel. Without molybdenum, CF8 costs less than CF8M and offers good general corrosion resistance for food, process and architectural parts where chlorides are not a major concern. BRK Metal casts CF8 / 1.4308 as a regular production alloy, for parts from 1 g to 25 kg.

Designations and equivalents

Standard	Designation	Note
ASTM A351 / A743	CF8	Cast grade, solution annealed
EN 10283 / EN 10213	1.4308 – GX5CrNi19-10	European cast grade
AISI (wrought)	304	Nearest wrought equivalent, not identical

Chemical composition (wt. %)

Element	CF8 (ASTM A351)	1.4308 (EN 10283)
C	≤ 0.08	≤ 0.07
Cr	18.0 – 21.0	18.0 – 20.0
Ni	8.0 – 11.0	8.0 – 11.0
Mn	≤ 1.50	≤ 1.50
Si	≤ 2.00	≤ 1.50

Mechanical properties (solution annealed)

Property	CF8 (ASTM)	1.4308 (EN)
Tensile strength Rm	≥ 485 MPa	440 – 640 MPa
Yield strength Rp0.2	≥ 205 MPa	≥ 200 MPa
Elongation A	≥ 35 %	≥ 30 %

Values are minimums or ranges from the referenced standards for orientation; the current edition of the standard and your drawing requirements apply.

CF8 or CF8M?

Choose CF8 / 1.4308 for general corrosion resistance at lower cost. Choose CF8M / 1.4408 when the part is exposed to chlorides, sea water, cleaning chemicals or other pitting-prone environments.

Typical applications

Food processing and kitchen equipment, valve and pump bodies for water, fittings, architectural hardware, textile machinery parts and general machine components.

Design and production notes

Heat treatment: supplied solution annealed.
Magnetism: like other cast austenitic grades, CF8 contains some ferrite and can be slightly magnetic.
Tolerances: see dimensions and tolerances (VDG P690).
Finishing: machining and surface treatments on request.

More: all material options, stainless steel investment casting.

How to request a quote

Send a 2D drawing (PDF) and, if available, a 3D model (STEP), the alloy and condition you need, annual and per-order quantities, and any machining, coating or documentation requirements. Prices are calculated per part; the minimum order quantity depends on part size and geometry. Contact us to send your request.

FAQ

Is CF8 the same as 304 stainless steel?

CF8 is the cast equivalent of 304. Composition is similar but not identical, and the cast structure contains some ferrite. For cast parts, drawings normally specify CF8 or 1.4308.

When should I use CF8M instead of CF8?

When the part is exposed to chlorides, sea water or aggressive cleaning agents. The molybdenum in CF8M improves resistance to pitting and crevice corrosion.

Do you cast CF8 / 1.4308 regularly?

Yes. CF8 / 1.4308 is one of our regular production alloys, for parts from about 1 g to 25 kg.

Contact

You can contact us either by phone or by email. Our team will get back to you as soon as possible.