KROMPAProduct Catalogue

KROMPA

Product Catalogue · 2026

KROMPA

Made from coil,cut to your size.

product groups

products

grades

316 is supplied on request.

How to read

Dimensions, weights and grade data are on the pages that follow. Weight values are theoretical calculations and may vary with production tolerance. What we need for a quotation: page 18.

1KROMPA

About Krompa

We were founded in 2023 in the Batman OSB.

Danalı Köyü Organize Sanayi Bölgesi mevkii 21. Cad. No:11, Beşiri / BATMAN

Close-up of stainless tubes and a box section, representative image — Representative image; not a photograph of a Krompa product or facility.

What we do

We convert coil into stainless tube and box section on our own line. We hold sheet, tube and box section in stock and cut to the size on your order.

Services

Cut-to-LengthWe cut sheet to the size you want.
Tube & Profile CuttingWe cut tube and box section to your length.
Made-to-Order ProductionTell us the size and grade; we review it together.

2KROMPA

Krompa1–2
Products
Grade10–11
Industries12–13
Weight Charts14–17
Ordering18

3KROMPAContents

Tube

We make tube from coil on our own line, supply it from stock and cut it to your length.

Ø38 × 1.5 mm tube: 1.36 kg/m (calculated with 304 density)

4KROMPATube

Ø38 stainless tube, two pieces, representative image

Ø38Stainless steel tube

From stock · cut to size

Outside Diameter	38mm
Wall Thickness	0.5–1.5mm
Inside Diameter	35–37mm
Unit Weight	0.465–1.36kg/m

Ø32 stainless tube, two pieces, representative image

Ø32Stainless steel tube

From stock · cut to size

Outside Diameter	32mm
Wall Thickness	0.5–1.5mm
Inside Diameter	29–31mm
Unit Weight	0.391–1.14kg/m

Theoretical weight referencePage 14

Grade on request; weights are calculated with the 304 density (7.9 g/cm³).

5KROMPATube

Section

We make box section from coil on our own line, supply it from stock and cut it to your length.

40 × 40 × 1.5 mm section: 1.82 kg/m (at 304 density)

6KROMPASection

40 × 20 stainless box section, two pieces, representative image

40 × 20Stainless steel section

From stock · cut to size

Width	40mm
Height	20mm
Wall Thickness	0.5–1.5mm

40 × 40 stainless box section, two pieces, representative image

40 × 40Stainless steel section

From stock · cut to size

Width	40mm
Height	40mm
Wall Thickness	0.5–1.5mm

Unit weight

kg/m

Wall thickness (mm)	40 × 20
0.5	0.466
1	0.916
1.2	1.09
1.5	1.35

Wall thickness (mm)	40 × 40
0.5	0.624
1	1.23
1.2	1.47
1.5	1.82

This chart is a material reference; it does not show Krompa's production or stock range.

Theoretical weight reference · More sizesPage 15

Grade on request; weights are calculated with the 304 density (7.9 g/cm³).

7KROMPASection

Sheet

Stainless steel sheet · 4 grades

Thickness0.85–2mm

Edge stack of five stainless sheets, representative image

AISI 201EN 1.4372

From stock · cut to size

Density	7.86g/cm³
Unit Weight	6.68–15.72kg/m²

AISI 430EN 1.4016

From stock · cut to size

Density	7.75g/cm³
Unit Weight	6.59–15.50kg/m²

AISI 304EN 1.4301

From stock · cut to size

Density	7.9g/cm³
Unit Weight	6.72–15.80kg/m²

AISI 316EN 1.4401

Supplied on request

Density	8g/cm³
Unit Weight	6.80–16.00kg/m²

8KROMPASheet

Stainless steel sheet

kg/m² by thickness and grade

This chart is a material reference; it does not show Krompa's production or stock range.

Thickness (mm)	AISI 201	AISI 430	AISI 304	AISI 316
0.85	6.68	6.59	6.72	6.80
1	7.86	7.75	7.90	8.00
1.2	9.43	9.30	9.48	9.60
1.5	11.79	11.63	11.85	12.00
2	15.72	15.50	15.80	16.00
Density (g/cm³)	7.86	7.75	7.9	8

kg/m² = thickness (mm) × density (g/cm³)

316 is supplied on request.

Edge section

Scale1 mmThicknesses drawn 6× enlarged

9KROMPASheet

Choosing the right grade

The grade is set by where the material sits and what load it carries.

Where will the material be used?

For dry interiors where only appearance matters, 430 or 201 is enough. 304 is used in kitchens, food and general fabrication. Near the sea, at a pool, with chlorinated cleaning or in a chemical plant you need 316; in these environments 304 develops pitting corrosion. 316 is supplied on request.

Will it carry a load?

For cladding or panels, strength is not the deciding factor. If it carries a load, look at the yield strength (MPa): 201 at 260, 430 at 260, 304 at 230, 316 at 240. The highest and lowest differ by 30 MPa. Answer the environment question first.

Yield strength, MPa

201260
430260
304230
316240

Standard value; not a test result specific to Krompa.

Sheet (plate) value; does not apply to tube or box section.

201 – an honest warning

201 cannot be told apart from 304 by eye. It costs less than 304. But its nickel content is low: 3.5–5.5% (304: 8–10.5%). Its protective oxide layer is not as stable as that of 304. Outdoors, by the sea, in wet areas and in chloride environments it develops surface rust in a short time. Choosing 201 knowingly, for a dry interior, is the right call.

Nickel ranges: standard value (EN 10088-2, ASTM A240).

10KROMPAGrade

ASTM A240 · EN 10088-2

Grade data

Standard values — not a Krompa test result.

AISI 201EN 1.4372

Structure	Austenitic
Magnetic	No

PREN

16.0

AISI 430EN 1.4016

Structure	Ferritic
Magnetic	Yes

PREN

16.0

AISI 304EN 1.4301

Structure	Austenitic
Magnetic	No

PREN

17.5

AISI 316EN 1.4401

Structure	Austenitic
Magnetic	No

PREN

23.1

PREN: Pitting corrosion resistance index. PREN = %Cr + 3.3 × %Mo + 16 × %N. Calculated from the lower limit the standard guarantees.

Grade	Composition, weight %						Mechanical · standard value		Standard
Grade	C	N	Cr	Ni	Mo	Mn	Yield (Rp0.2)MPa	Tensile (Rm)MPa	Standard
201	≤0.15	≤0.25	16.0–18.0	3.5–5.5	—	5.5–7.5	260	≥515	ASTM A240
430	≤0.08	—	16.0–18.0	—	—	≤1.0	260	450–600	EN 10088-2
304	≤0.07	≤0.11	17.5–19.5	8.0–10.5	—	≤2.0	230	540–750	EN 10088-2
316	≤0.07	≤0.11	16.5–18.5	10.0–13.0	2.0–2.5	≤2.0	240	530–680	EN 10088-2

Sheet condition of the mechanical values: Annealed sheet (ASTM A240) — 201; Cold rolled sheet (EN 10088-2) — 430, 304, 316.

Austenitic: Non-magnetic when annealed; may become slightly magnetic after cold forming or welding.

316 is supplied on request.

11KROMPAGrade

Where this material goes

Food and Beverage Plants

304316

304 for washed lines, 316 for salty cleaning

TubeSectionSheet

Commercial Kitchen Fabrication

304

Wet worktops: 304, not 430

TubeSectionSheet

Home Appliances

430304

Dry panels: 430, wet surfaces: 304

TubeSheet

Chemical and Water Treatment

316

Where chlorides are present, 304 is not enough

TubeSheet

Wet Areas and Drainage

304316

Permanently wet floors: 304

TubeSectionSheet

Railings and Architectural Work

304316

Outdoors 304, on the coast 316

TubeSection

12KROMPAIndustries

304430

TubeSectionSheet

Machinery and Industrial Fabrication

Housing from sheet, frame from profile, line from tube

For machine housings in dry interiors, 430 (Cr 16.0–18.0%) is suitable; where there is washdown or damp, use 304. Choose 304 for welded frames: 430 welds less well than 304. Send the grade, size and quantity.

Energy Plants

304316

Auxiliary lines: 304, salty water: 316

TubeSectionSheet

Mining and Mineral Processing

304316

Damp, dust and acidic water: 304 and 316

TubeSectionSheet

Marine and Port

316

In salt spray, 316

TubeSectionSheet

Automotive and Transport

304316

Body frame from profile, cladding from sheet

SectionSheet

13KROMPAIndustries

Stainless Round Tube Weight Chart

Theoretical weight reference

This chart is a material reference; it does not show Krompa's production or stock range.

Wall thickness (mm) · kg/m

Outside diameter (mm)	1	1.2	1.5	2	2.5	3
Ø12	0.273	0.322	0.391	0.496	0.589	0.670
Ø16	0.372	0.441	0.540	0.695	0.838	0.968
Ø19	0.447	0.530	0.651	0.844	1.02	1.19
Ø20	0.472	0.560	0.689	0.893	1.09	1.27
Ø21.3	0.504	0.599	0.737	0.958	1.17	1.36
Ø25	0.596	0.709	0.875	1.14	1.40	1.64
Ø26.9	0.643	0.765	0.946	1.24	1.51	1.78
Ø30	0.720	0.858	1.06	1.39	1.71	2.01
Ø32	0.769	0.917	1.14	1.49	1.83	2.16
Ø33.7	0.812	0.968	1.20	1.57	1.94	2.29
Ø38	0.918	1.10	1.36	1.79	2.20	2.61
Ø40	0.968	1.16	1.43	1.89	2.33	2.75
Ø42.4	1.03	1.23	1.52	2.01	2.48	2.93
Ø48.3	1.17	1.40	1.74	2.30	2.84	3.37
Ø50	1.22	1.45	1.81	2.38	2.95	3.50
Ø50.8	1.24	1.48	1.84	2.42	3.00	3.56
Ø60.3	1.47	1.76	2.19	2.89	3.59	4.27
Ø63.5	1.55	1.86	2.31	3.05	3.78	4.50
Ø76.1	1.86	2.23	2.78	3.68	4.57	5.44
Ø88.9	2.18	2.61	3.25	4.31	5.36	6.40
Ø101.6	2.50	2.99	3.73	4.94	6.15	7.34
Ø114.3	2.81	3.37	4.20	5.57	6.94	8.29

Weights are calculated with the AISI 304 density (7.9 g/cm³).

Open the table on the website

14KROMPAWeight Charts

Stainless Box Section Weight Chart

Theoretical weight reference

This chart is a material reference; it does not show Krompa's production or stock range.

Square Section

Wall thickness (mm) · kg/m

Side (mm)	1	1.2	1.5	2	2.5	3
10 × 10	0.284	0.334	0.403	0.506	0.593	0.664
15 × 15	0.442	0.523	0.640	0.822	0.988	1.14
20 × 20	0.600	0.713	0.877	1.14	1.38	1.61
25 × 25	0.758	0.902	1.11	1.45	1.78	2.09
30 × 30	0.916	1.09	1.35	1.77	2.17	2.56
35 × 35	1.07	1.28	1.59	2.09	2.57	3.03
40 × 40	1.23	1.47	1.82	2.40	2.96	3.51
50 × 50	1.55	1.85	2.30	3.03	3.75	4.46
60 × 60	1.86	2.23	2.77	3.67	4.54	5.40
70 × 70	2.18	2.61	3.25	4.30	5.33	6.35
80 × 80	2.50	2.99	3.72	4.93	6.12	7.30
100 × 100	3.13	3.75	4.67	6.19	7.70	9.20
120 × 120	3.76	4.50	5.62	7.46	9.28	11.09
150 × 150	4.71	5.64	7.04	9.35	11.65	13.94
200 × 200	6.29	7.54	9.41	12.51	15.60	18.68

Open the table on the website

Rectangular Section

Wall thickness (mm) · kg/m

Size (mm)	1	1.5	2	2.5	3
20 × 10	0.442	0.640	0.822	0.988	1.14
30 × 15	0.679	0.995	1.30	1.58	1.85
30 × 20	0.758	1.11	1.45	1.78	2.09
40 × 20	0.916	1.35	1.77	2.17	2.56
40 × 30	1.07	1.59	2.09	2.57	3.03
50 × 25	1.15	1.71	2.24	2.77	3.27
50 × 30	1.23	1.82	2.40	2.96	3.51
60 × 30	1.39	2.06	2.72	3.36	3.98
60 × 40	1.55	2.30	3.03	3.75	4.46
80 × 40	1.86	2.77	3.67	4.54	5.40
100 × 50	2.34	3.48	4.61	5.73	6.83
120 × 60	2.81	4.19	5.56	6.91	8.25
150 × 50	3.13	4.67	6.19	7.70	9.20
200 × 100	4.71	7.04	9.35	11.65	13.94

Open the table on the website

Weights are calculated with the AISI 304 density (7.9 g/cm³).

15KROMPAWeight Charts

Stainless Sheet Weight Chart

Theoretical weight reference

This chart is a material reference; it does not show Krompa's production or stock range.

Sheet size (mm) · kg

Thickness (mm)	1000 × 1000	1000 × 2000	1250 × 2500	1500 × 3000	1500 × 6000	2000 × 6000
0.4	3.16	6.32	9.88	14.22	28.44	37.92
0.5	3.95	7.90	12.34	17.78	35.55	47.40
0.6	4.74	9.48	14.81	21.33	42.66	56.88
0.8	6.32	12.64	19.75	28.44	56.88	75.84
1	7.90	15.80	24.69	35.55	71.10	94.80
1.2	9.48	18.96	29.63	42.66	85.32	113.76
1.5	11.85	23.70	37.03	53.33	106.65	142.20
2	15.80	31.60	49.38	71.10	142.20	189.60
2.5	19.75	39.50	61.72	88.88	177.75	237.00
3	23.70	47.40	74.06	106.65	213.30	284.40
4	31.60	63.20	98.75	142.20	284.40	379.20
5	39.50	79.00	123.44	177.75	355.50	474.00
6	47.40	94.80	148.13	213.30	426.60	568.80
8	63.20	126.40	197.50	284.40	568.80	758.40
10	79.00	158.00	246.88	355.50	711.00	948.00
12	94.80	189.60	296.25	426.60	853.20	1,137.60
15	118.50	237.00	370.31	533.25	1,066.50	1,422.00
20	158.00	316.00	493.75	711.00	1,422.00	1,896.00

Open the table on the website

Grade factorOther grades: table value × factor

AISI 304 = 1.000

AISI 201×0.995
AISI 430×0.981
AISI 304×1.000
AISI 316×1.013

Weights are calculated with the AISI 304 density (7.9 g/cm³).

16KROMPAWeight Charts

Method

Theoretical weight reference

This chart is a material reference; it does not show Krompa's production or stock range.

Grade factorsDensity ratio for the sheet table

AISI 304 = 1.000

Grade	Density (g/cm³)	Factor
AISI 201EN 1.4372	7.86	0.995
AISI 430EN 1.4016	7.75	0.981
AISI 304EN 1.4301	7.9	1.000
AISI 316EN 1.4401	8	1.013

Formulas

Volume (mm³) ÷ 1,000,000 × density = kg

Densityg/cm³Per metre: Length = 1000 mm

Round Tube
π/4 × (OD² − ID²) × Length × Density
Outside DiametermmWall ThicknessmmLengthmm
ID = OD − 2 × Wall Thicknessmm
Resultkg/m
Square Tube
(Side² − Inner Side²) × Length × Density
SidemmWall ThicknessmmLengthmm
Inner Side = Side − 2 × Wall Thicknessmm
Resultkg/m
Rectangular Tube
(A×B − inner A × inner B) × Length × Density
Width (A)mmHeight (B)mmWall ThicknessmmLengthmm
inner A = A − 2 × Wall Thicknessmminner B = B − 2 × Wall Thicknessmm
Resultkg/m
Sheet / Plate
Thickness × Width × Length × Density
ThicknessmmWidthmmLengthmm
1 m²: Width = Length = 1000 mm
Resultkg