AISI 316L · 03Kh17N14M3 · 1.4404 · 2B / No.1 · t 0.5–50 · 1 500×3 000 · ASTM A240
Stainless sheet AISI 316L
Austenitic sheet with molybdenum for chloride environments, chemical plants, water treatment and marine equipment
AISI 304 / 304L · 08Kh18N10 · 1.4301 · 2B / BA / No.1 · t 0.5–50 · 1 500×3 000 · ASTM A240
Stainless sheet AISI 304 / 304L
Chromium-nickel austenitic sheet for food and chemical equipment, tanks and architecture
ASTM A240/A240MEN 10088-2:2014GB/T 3280-2015GB/T 4237-2015GB/T 20878-2007GOST 5582-75GOST 7350-77GOST 5632-2014AISI 304AISI 304L08Kh18N1003Kh18N1106Cr19Ni10022Cr19Ni101.43011.4307
Parameters
| Parameters | |
|---|---|
| Thickness | cold-rolled 0.5–3 mm; hot-rolled 3–50 mm |
| Width | 1 000, 1 219, 1 250, 1 500 mm |
| Length | 2 000, 2 438, 3 000, 6 000 mm |
| Steel grade | 304, 304L; 08Kh18N10, 03Kh18N11; 1.4301, 1.4307 |
| Finish | 2B, BA, No.1, No.4, HL |
| Protective film | on the face side for 2B, BA, No.4, HL |
| Certificate | Mill MTC with heat chemical composition; on request — EN 10204 3.1 |
Sizes and weight
| t, mm | Weight, kg/m² | Sheet 1 500×6 000, kg |
|---|---|---|
| 0.5 | 3.93 | 35.3 |
| 0.8 | 6.28 | 56.5 |
| 1 | 7.85 | 70.6 |
| 1.2 | 9.42 | 84.8 |
| 1.5 | 11.8 | 106 |
| 2 | 15.7 | 141.3 |
| 2.5 | 19.6 | 176.6 |
| 3 | 23.5 | 212 |
| 4 | 31.4 | 282.6 |
| 5 | 39.3 | 353.3 |
| 6 | 47.1 | 423.9 |
| 8 | 62.8 | 565.2 |
| 10 | 78.5 | 706.5 |
| 12 | 94.2 | 847.8 |
| 16 | 125.6 | 1 130 |
| 20 | 157 | 1 413 |
Theoretical weight at steel density 7.85 g/cm³. Actual batch weight is by scale and mill certificate.
Description
AISI 304 is an austenitic chromium-nickel steel: chromium 17.5–19.5 %, nickel 8–10.5 % to ASTM A240/A240M. Chromium forms a passive oxide film on the surface, nickel stabilises the austenitic structure — the steel is non-magnetic in the annealed condition, welds and stamps well. Thin sheet up to 3 mm is cold-rolled by mills in China to GB/T 3280-2015 with a 2B or BA finish, heavy plate is hot-rolled to GB/T 4237-2015 with a No.1 finish after pickling. The nearest equivalents are 08Kh18N10 to GOST 5632-2014, 06Cr19Ni10 to GB/T 20878, 1.4301 to EN 10088-2.
304L differs in carbon content — up to 0.03 % against 0.07 % for 304: when heavy plate is welded, chromium carbides do not precipitate in the weld zone and resistance to intergranular corrosion is retained without subsequent heat treatment. Equivalents of 304L are 03Kh18N11 to GOST, 022Cr19Ni10 to GB, 1.4307 to EN. Separately: 12Kh18N10T is the equivalent of titanium-stabilised grade 321, not of 304, and one must not be substituted for the other in a specification. The finish is chosen for the product: 2B — general purpose, BA — bright after bright annealing, No.4 and HL — brushed for architecture and lifts, No.1 — for heavy plate to be welded.
At the mill before shipment the bureau's inspector checks the chemical composition of the sample sheets with a portable X-ray fluorescence analyser — chromium and nickel content against the grade limits — and compares it with the mill test certificate (MTC) by heat number; this rules out substitution of 304 by manganese steel 201. Thickness is measured with a micrometer at several points, format and squareness of cut with a tape, and the surface is examined for scores, dents, heat tint and damage to the protective film. Packaging with interleaving between sheets is checked. The report with photographs is handed to you before shipment. The calculated table below uses a density of 7.85 g/cm³; the density of 1.4301 steel to EN 10088 is 7.9 g/cm³, so the actual weight by weighing at the mill is less than 1 % above the calculated one and is stated in the packing list.
Applications
- food, dairy and pharmaceutical equipment
- tanks, vessels and heat exchangers
- kitchen and retail equipment, extractor hoods
- lift cladding, handrails, facade elements
- chemical and textile industry equipment
- air ducts and flues
Packing and shipment
Timber pallet or crate: sheets with protective film, paper interleaving between sheets, steel top cover, strapped with steel band; mill tag with grade, heat, thickness, finish and number of sheets.
Grade equivalents
| GOST | GB (China) | ASTM | EN | Note |
|---|---|---|---|---|
| St3sp / St3ps | Q235B | A36 | S235JR | Nearest equivalents. Q235B and S235JR specify impact toughness at +20 °C, GOST 14637 by category; A36 has a higher yield strength, 250 MPa. |
| 09G2S | Q355B (Q345B before 2018) | A572 Grade 50 | S355JR / S355J2 | Nearest equivalents by strength. The 09G2S category for impact toughness at −40 or −70 °C is specified separately; Q355B is tested at +20 °C. |
| 08ps | DC01 | A1008 CS Type B | DC01 | SPCC to JIS G3141 is the same class of general-purpose cold-rolled low-carbon steel. |
| 08ps to GOST 14918 | DX51D+Z | A653 CS Type B | DX51D+Z | The DX51D+Z designation in GB/T 2518 matches EN 10346. Zinc coating weight (Z100–Z275) is specified separately from the grade. |
| GOST 34180 based on 08ps | TDC51D+Z | A755 based on A653 | DX51D+Z to EN 10169 | The grade describes the steel substrate and the zinc. Type and thickness of the polymer layer, RAL colour and environment class are set by the specification. |
| 08Kh18N10 | 06Cr19Ni10 | 304 | 1.4301 (X5CrNi18-10) | 12Kh18N10T is the equivalent of titanium-stabilised grade 321, not of 304. |
| 03Kh18N11 | 022Cr19Ni10 | 304L | 1.4307 (X2CrNi18-9) | Low-carbon version of 304 (carbon up to 0.03 %) for welded structures without subsequent heat treatment. |
| 03Kh17N14M3 | 022Cr17Ni12Mo2 | 316L | 1.4404 (X2CrNiMo17-12-2) | Molybdenum 2–3 % to ASTM A240. Mills in China certify to ASTM or EN; the GOST grade is entered in the MTC on request as an equivalent. |
Equivalents are the closest match, not identical: chemistry and tolerances differ between standards. The exact grade and standard are written into the contract.
Related items
08ps · DC01 · SPCC · t 0.5–3 · 1 250×2 500 · GOST 19904
Cold-rolled sheet 08ps
Cold-rolled low-carbon steel sheet with close thickness tolerance and clean surface for stamping, bending and painting
Buyer questions
How to read a mill test certificate for sheet
In the certificate (MTC) the mill states the standard and grade, heat number, thickness and format, chemical composition of the heat, mechanical test results and batch number. We check the heat number against the tag on every bundle and the marking on the sheets, and the composition and properties against the requirements of the standard named in the specification. A certificate without a heat number, or with a composition outside the limits of the standard, is grounds for not accepting the batch.
How St3sp differs from St3ps and from Q235B
St3sp is killed steel, fully deoxidised; St3ps is semi-killed. For welded structures and service at sub-zero temperatures St3sp with a category to GOST 14637 is usually specified. Q235B is the Chinese grade of the same class with a yield strength of 235 MPa minimum and an impact test at +20 °C. A mill in China issues the certificate to GB/T 700 or, under contract, rolls the plate to GOST requirements and states this in the MTC.
How sheet tonnage is calculated
Theoretical weight per square metre is 7.85 kg for every millimetre of thickness; the weight of a sheet is thickness multiplied by area and by 7.85. Actual weight differs because of the thickness tolerance: a minus tolerance makes the batch lighter than theoretical. In the specification we fix which weight the batch is settled by — theoretical or actual by weighing at the mill — and the same weight goes into the packing list.
What is checked during inspection at the mill
Thickness with a micrometer at several points of every sample sheet, width and length with a tape, flatness and squareness of cut, surface for laminations, laps and scale, marking and tags, certificate by heat and composition, packaging. For coated products — zinc or polymer thickness with a coating gauge; for stainless steel — a composition check with a portable analyser. The result is a report with photographs before shipment.
How a batch is calculated
The batch is calculated for your volume — send the specification: grade and standard, thickness, sheet format, coating and surface, quantity in sheets or tonnes, certificate requirements. From the specification we find a producing mill, agree the rolling and packaging terms and reply with a calculation.
Price request
Send your specification and we will quote your batch
Steel pricing depends on grade, size, tonnage and delivery terms on the day of contract. A number on the page would be wrong by the time you read it.
Request received