1. Astm A240 AISI SUS 304l Stainless Steel Metal Sheet Steel Metal
Plate With Mirror Finish
Manufacturing Process of stainless steel sheet
Raw materials are sending to hot rolling units for rolling into
different sizes.
→Hot rolled material is annealing in cold rolled annealing furnace
and pickling in acid.
→All mill rolls are grinded on precision grinding machine with
proper chamfering after first shift .
→All sheets are pickled in different tanks and dried on brush roll
machine before dispatched.
→These sheets are again annealing and are sent to straighten
machine for straightening.
→Inspections are done at various stages. Keep proper control
overall internal process via rolling.
Features And Processing Technology
1D - the surface has discontinuous granular shape, also known as
fog surface.
Processing technology: hot rolling + annealing shot peening
pickling + cold rolling + annealing pickling.
2D - slightly shiny silver white.
Processing technology: hot rolling + annealing shot peening
pickling + cold rolling + annealing pickling.
2B - silver white and better gloss and flatness than 2D surface.
Processing technology: hot rolling + annealing shot peening
pickling + cold rolling + annealing pickling+ quenching and
tempering rolling.
BA - excellent surface gloss and high reflectivity, like mirror
surface.
Processing technology: hot rolling + annealing shot peening and
pickling + cold rolling + annealing and pickling+ surface polishing
+ tempering and rolling.
NO.3 - has good gloss and rough surface.
Processing technology: polishing, tempering and rolling of 2D
products or 2B with 100 ~ 120 grinding materials (JIS R6002).
NO.4 - has good gloss and fine lines on the surface.
Processing technology: polishing, tempering and rolling of 2D
products or 2B with 150 ~ 180 grinding materials (JIS R6002).
HL - silver gray with hair stripes.
| GRADE | CGCC CGCH CGCD1-CGCD3 CGC340-CGC570 GRADE | SS GRADE33-80 SGCC SGCH SGCD1-SGCD3 SGC340-SGC570 SGCC DX51D | GRADE33-80 SGLCC SGLCD SGLCDD SGLC400-SGLC570 SZACC SZACH SZAC340R |
| MODEL NO | 0.16MM-0.8MM*1250MM OR UNDER | (0.127-1.2*1250MM OR UNDER | 0.12MM-2MM*1250MM OR UNDER |
| TYPE | Steel coil Steel sheets/plates Corrugated steel sheets/plates | Steel coil Steel sheets/plates Corrugated steel sheets/plates | Steel coil Steel sheets/plates Corrugated steel sheets/plates |
| TECHNIQUE | Ccold rolled -galvalume /galvanized -PPGI/PPGL | Cold rolled - galvanized | Cold rolled -galvalume /Aluzinc |
SURFACE TREATMENT | Mini/regular/big/zero spangle, Chromate treatment /chromate-free treatment /untreated
unoile/oiled, TENSION LEVELLERT SKIN PASS anti-fingerprint/un-anti-fingerprint, Coating,color | Mini/regular/big/zero spangle, Chromate treatment /chromate-free treatment /untreated
unoile/oiled, TENSION LEVELLERT SKIN PASS anti-fingerprint/un-anti-fingerprint, Coating |
| APPLICATION | Structural use ,roofing, commercial use, household appliance,
industry, family |
2.chemical composition
| C | Si | Mn | P≤ | S≤ | Cr | Mo | Ni | Other |
| 201 | ≤0.15 | ≤1.00 | 5.5-7.5 | 0.06 | 0.03 | 16-18 | - | 3.5-5.5 | N≤0.25 |
| 202 | ≤0.15 | ≤1.00 | 7.5-10.0 | 0.06 | 0.03 | 17-19 | - | 4.0-6.0 | N≤0.25 |
| 301 | ≤0.15 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 16-18 | - | 6.0-8.0 | - |
| 303 | ≤0.15 | ≤1.00 | ≤2.00 | 0.2 | ≥0.015 | 17-19 | ≤0.6 | 8.0-10.0 | - |
| 304 | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 18-20 | - | 8-10.5 | - |
| 316 | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 16-18 | 2-3 | 10-14 | - |
| 430 | ≤0.12 | ≤0.75 | ≤1.00 | 0.04 | 0.03 | 16-18 | - | ≤0.6 | |
3.product show
