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STEEL GRADES

You are here: Home / PRODUCTS AND SERVICES / STAINLESS STEEL FLAT PRODUCTS / PORTFOLIO / STEEL GRADES

STEEL GRADES

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A COMPLETE RANGE OF STAINLESS STEEL GRADES

With its stainless steel grades and the wide range of available finishes ranging from traditional finishes (BA, Scotch Brite, satin…) to the anti-fingerprint Silver Ice finishes or even the special finishes which can be produced on demand, Acciai Speciali Terni is capable of meeting the multiple needs of the vorious market sectors.

MARTENSITIC FERRITIC
FERRO CHROME CHROMIUM CHROMIUM-STABILISED CHROMIUM-STABILISED SUPER-FERRITIC STEELS CHROMIUM MOLYBDENUM
Acciai Speciali Terni 420A 420J2 420 410 S STR 12 430 409 409 LI 430 TI 439 M 439 MPS 441 LI 441 PS 470 LI 434 444 4513
EN 10088-2 1.4021 1.4028 1.4034 1.4000 1.4003 1.4016 1.4512 1.4512 1.4520 1.4510 1.4510 1.4509 1.4509 1.4613 1.4113 1.4521 1.4513
CONDITIONS OF SUPPLY
HOT ROLLED SHEETS AND COILS Finish 1 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

Rice grained

COLD
ROLLED
SHEETS AND COILS

2E
2D / 2B ✓ ✓ ✓* ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
BA ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓*** ✓*** ✓ ✓ ✓ ✓
Work hardened ✓**
Decorated ✓
INDICATIVE CHEMICAL COMPOSITION C 0,21 0,32 0,46 0,03 0,02 0,04 0,02 0,01 0,02 0,02 0,02 0,02 0,02 0,01 0,06 0,02 0,02
Cr 13,2 13,2 13,2 12,2 11,3 16,2 11,5 11,5 16,2 17,7 17,7 18,2 18,2 24,0 16,7 17,7 16,3
Ni – 0.5 – – – – – – – – – – – –
Mo – – – – – – – – – – – 1,0 2,1 1,2
Other – – – Ti Ti Ti Ti, Nb Ti, Nb Ti, Nb Ti, Nb Ti, Nb – Ti, Nb Ti
MECHANICAL
FEATURES
AT 20 °C – INDICATIVE
VALUES
Yield stress 0,2% 360 360 400 300 320 300 250 250 300 280 280 300 290 330 320 330 300
Breaking load Rm 590 650 700 450 500 500 420 420 450 450 450 470 450 490 500 500 470
Elongation A%
A80 (thickness <3mm)
A5 (thickness ≥3mm)
26 23 19 25 23 27 30 32 27 28 34 30 34 30 25 28 28
FOOD CONTACT M. DECREE 21/3/73 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
RESISTANCE
TO
CORROSION
General + + + ° ° + ° ° + + + + + +++ ++ +++ ++
Pitting + + + ° ° + ° + ++ + ++ ++ ++ +++ ++ +++ ++
Under tension + + + + + ++ + + ++ ++ ++ ++ ++ +++ ++ +++ ++
Hot worked + + + ° ° + ° ++ + ++ + +++ +++ +++ + + +
FORMABILITY + + + + + + ++ ++ ++ ++ ++ ++ +++ ++ + + ++
WELDABILITY + + + + ++ + ++ +++ +++ +++ +++ +++ +++ +++ + +++ +++
AUSTENITIC STEELS
CHROMIUM NICKEL CHROMIUM NICKEL MOLYBDENUM HEAT-RESISTANT
Acciai Speciali Terni 301 301 Cu 301 L 304 304 L 304 DL 304 MSA 304 MS 304 PSA 304 PS 304 PSQ 321 316 316 L 316 SLD 316 Ti 304 H **** 309 S ***** 310 S ***** 321 H ***** 4828 *****
EN 10088-2 1.4310 1.4310 1.4318 1.4301 1.4306 1.4307 1.4301 1.4301 1.4301 1.4301 1.4301 1.4541 1.4401 1.4404 1.4435 1.4571 1.4948 1.4833 1.4845 1.4878 1.4828
CONDITIONS OF SUPPLY
HOT ROLLED SHEETS AND COILS Finish 1 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
Rice grained ✓ ✓ ✓ ✓ ✓
COLD
ROLLED
SHEETS AND COILS
2E ✓ ✓ ✓ ✓ ✓ ✓
2D / 2B ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
BA ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
Work hardened ✓ ✓ ✓ ✓ ✓
Decorated ✓ ✓ ✓ ✓ ✓ ✓ ✓
INDICATIVE CHEMICAL COMPOSITION C 0,10 0,09 0,03 0,04 0,03 0,025 0,04 0,04 0,04 0,04 0,04 0,05 0,06 0,03 0,03 0,05 0,06 0,06 0,05 0,05 0,05
Cr 17,4 17,2 17,2 18,2 18,2 18,2 18,2 18,2 18,2 18,2 18,2 17,3 16,7 16,7 17,4 16,7 18,2 22,6 24,3 17,2 19,3
Ni 7,6 6,0 6,6 8,1 10,1 8,1 8,1 8,6 8,6 9,1 9,6 9,1 10,6 10,3 13,0 10,6 8,1 13,1 19,1 9,1 11,1
Mo – – – – – – – – – – – – 2,1 2,1 2,7 2,1 – – – – –
Other – Cu N – – – Cu – Cu – – Ti – – – Ti N Ti Si Si Ti
MECHANICAL
FEATURES
AT 20 °C – INDICATIVE
VALUES
Yield stress 0,2% 280 270 350 270 250 250 260 250 250 250 240 250 300 270 300 270 300 300 260 260 290
Breaking load Rm 700 750 800 650 570 630 630 630 620 600 600 590 610 580 600 580 600 600 580 600 640
Elongation A%
A80 (thickness <3mm)
A5 (thickness ≥3mm)
50 58 45 54 55 54 56 56 58 58 60 57 50 52 50 55 54 45 45 57 55
FOOD CONTACT M. DECREE .21/3/73 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
RESISTANCE
TO
CORROSION
General + ++ ++ ++ ++ ++ ++ ++ ++ ++ ++ +++ +++ +++ ++++ +++ ++ +++ +++ +++ +++
Pitting + ++ ++ ++ ++ ++ ++ ++ ++ ++ ++ +++ +++ +++ ++++ +++ ++ +++ +++ +++ ++
Under tension ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° °
Hot worked + ++ ++ ++ ++ ++ ++ ++ ++ ++ ++ +++ ++ ++ ++ ++ ++ ++++ ++++ ++ +++
FORMABILITY ++ +++ ++ ++ +++ ++ +++ +++ ++++ ++++ ++++ +++ ++ +++ +++ +++ ++ + + ++ +
WELDABILITY ++ +++ ++++ +++ ++++ ++++ +++ +++ +++ +++ +++ +++ +++ ++++ ++++ ++++ +++ +++ ++ ++ +++
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