A WIDE RANGE OF SURFACE FINISHES FOR MULTIPLE AESTHETIC AND TECHNICAL SOLUTIONS
COLD ROLLED SHEETS
| FINISHES | |||||
| DESCRIPTION | AISI ASTM A 480 |
EN 10088-2 |
CORRESPONDING ACCIAI SPECIALI TERNI |
CONDITIONS OF THE SURFACE |
NOTES |
| Hot rolled, annealed, pickled and cold re-rolled | 2H | Work hardened | Polished | Cold worked to obtain higher levels of hardness | |
| Cold rolled, annealed and descaled | 2E | ZH | Wrinkled and opaque | Generally used for steels with scales very resistant to pickling | |
| Cold rolled, annealed and pickled | 2D | 2D | 2D | Smooth | Finish for good formability, but not as smooth as 2B or 2R |
| Cold rolled, annealed, pickled and final roll pass | 2B | 2B | 2B | Smoother than 2D | Most common finish to ensure good corrosion resistance, smoothness and flatness |
| Cold rolled, polish annealed and a light final roll pass | BA | 2R | BA | Smooth, polished, reflecting | Smoother and more polished than 2B |
| Satin | 3 | 2K | 3 | Opaque | Unidirectional weaving |
| Satin | 4 | 2K | 4 | Satin, polished | Unidirectional development |
| Satin | 6 | 2K | 6 | Low albedo | Unidirectional development |
| Brushed and polished | 7 | 2K | 7 | Polished | High degree of polish, the grinding traces are not removed |
| Scotch Brite | 2J | Scotch Brite | Polished | Brushed in a single direction | |
| Decorated on one surface | 2M | Decorated | Various designs are available | Excellent finish mainly for architectural applications | |
| Colour pre-painted | Vernest® | Colour painted | Coloured for general uses | ||
| Pre-painted transparent | Silver Ice® | Painted transparent | Anti-fingerprint, easy to clean | ||
| Pre-painted with primer | Primerinox® | Painted with primer | Special for adhering to polyurethane foams | ||
The availability of the various finishes must be verified for the steel grade on the basis of specific requests
Standard Finishes
2H – Hardened state coils
| TYPICAL MECHANICAL PROPERTIES | ||||
| TYPE ACCIAI SPECIALITERNI |
HARDENING DEGREE | BREAKING LOAD Rm (mpa) |
0.2% YIELD STRESS Rp 0.2% mpa |
ELONGATION A50 (%) |
| 301 301 L |
Annealed | > 620 | > 310 | > 40 |
| 1/8 crude | > 690 | > 380 | > 40 | |
| 1/4 crude | > 860 | > 515 | > 25 | |
| 1/2 crude | > 1035 | > 760 | > 18 | |
| 3/4 crude | > 1205 | > 930 | > 12 | |
| Crude steel | > 1275 | > 965 | > 9 | |
| Annealed | > 515 | > 205 | > 40 | |
| 304 | 1/16 crude | > 620 | > 310 | > 40 |
| 1/8 crude | > 690 | > 380 | > 30 | |
| 1/4 crude | > 860 | > 515 | > 10 | |
| 1/2 crude | > 1035 | > 760 | > 7 | |
| 430 HT | Up to HRC 32 | |||
Conditions of supply: Thickness from 0.4 to 2.00; width from 1000 to 1250 mm
The hardening operation gives the stainless steels an increase in mechanical strength. Acciai Speciali Terni offers HT 430, 304, 301 and 301 L hardened steels
2E – Cold rolled, annealed and descaled sheets
Thickness tolerances
in accordance with
UNI EN ISO 9445-2 standard
| MINIMUM THICKNESS mm | |||
| STEEL GROUP | WIDTH mm | ||
| 1020 | 1270 | 1520 | |
| 304 / 321 | 1,50 | 1,50 | 2,50 |
| 301 | 1,50 | 1,80 | 3,00 |
| 316L | 1,50 | 2,50 | 4,00 |
| 309S | 1,80 | 2,00 | 3,50 |
| 310 | 1,80 | 3,00 | 4,00 |
The table may be subject to future revisions in order to take into account new ranges of thicknesses and new materials
HOT ROLLED SHEETS
Surface Finishes
A wide range of surface finishes for multiple aesthetic and technical solutions
| FINISHES | |||||
| DESCRIPTION | AISI ASTM A 480 |
EN 10088-2 |
CORRESPONDING ACCIAI SPECIALI TERNI |
CONDITIONS OF THE SURFACE | NOTES |
| Hot rolled, not annealed not pickled sheets | (HR) | 1U | Black | Covered in scales | Suitable for products to be further processed (e.g. rerolling) |
| Hot rolled, annealed and pickled | 1 | 1D | 1 | Scale-free | Common standard to ensure good resistance to corrosion |
| Rice grained | 1M | 1M | Printed rice grains | Printed on one surface only | |
| RICE GRAINED PRODUCT SHAPE LIST | |||||||||
| Nominal thickness (mm) | 3 | 3,5 | 4 | 4,5 | 5 | 5,5 | 6 | 6,35 | |
| Rice grain thickness (mm) | 1,39 | 1,39 | 1,39 | 1,52 | 1,52 | 1,52 | 1,52 | 1,52 | |
| Weight (kg/m2) | 30 | 33 | 38 | 41 | 45 | 48 | 52 | 55 | |
| Length (mm) | 1000 – 6000 | ||||||||
| Acciai Speciali Terni 304 MS – 304MSA – 304 L |
Width | 1020, 1270 mm | Minimum thickness | 3 mm | |||||
| 1545 mm | 4 mm | ||||||||
| Acciai Speciali Terni 316 – 316 L | Width | 1020 mm | Minimum thickness | 4 mm | |||||
| 1270 mm | 5 mm | ||||||||
The anti-slip characteristics of rice grained sheets are certified according to DIN 51130
The dimensional tolerances of the rice grain comply with ASTM A793 Pattern B
Special dimension and tolerance requirements will be evaluated in each case
DECORATED AND MICRO-DECORATED FINISHES
Perfection in all its details.
The decorated and micro-decorated finishes are obtained through the use of specially decorated rollers, during the cold-rolling process; subsequently the material is subjected to polished annealing heat treatment.
The finishes may be customised on demand
| SHAPE LIST | |||
| TYPE | THICKNESS | WIDTH | SHEETS |
| 304 / 430 | 0,6 ÷ 1,5 | 500 ÷ 1250 | 500 ÷ 4000 |
| 0,8 ÷ 1,5 | 1251 ÷ 1520 | 500 ÷ 4000 | |
* On request.
