Krompa

Where this material ends up

Tube, profile and sheet are not products on their own — they are part of a job. Below is what this material becomes across industries: counters, process lines, railings, machine frames.

Food and Beverage Plants

Food and Beverage Plants

Product-contact lines are washed often; the general answer is 304 (Cr 17.5–19.5% · Ni 8.0–10.5%). For salty or acidic cleaning, 316 (Mo 2.0–2.5%). Transfer lines are made from Ø16–76.1 mm tube, platform and stair frames from 15×15–80×80 mm profile, tank shells from sheet. Send the grade and size and we'll cut it and ship.

Typical grade: AISI 304 / EN 1.4301 · AISI 316 / EN 1.4401

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Machinery and Industrial Fabrication

Machinery and Industrial Fabrication

For machine housings in dry interiors, 430 (Cr 16.0–18.0%) is suitable; where there is washdown or damp, use 304. Covers and panels are folded from sheet, frames made from 15×15–80×80 mm profile, fluid lines run in Ø16–76.1 mm tube. Choose 304 for welded frames: 430 welds less well than 304. Send the grade, size and quantity.

Typical grade: AISI 304 / EN 1.4301 · AISI 430 / EN 1.4016

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Commercial Kitchen Fabrication

Commercial Kitchen Fabrication

In a commercial kitchen the surface gets wet and washed; 430 is not suitable for wet areas or food contact, so use 304 (Cr 17.5–19.5% · Ni 8.0–10.5%). Tops are folded from sheet, legs and frames made from 15×15–80×80 mm profile, shelf supports from Ø16–76.1 mm tube. Send the grade and size and we'll cut it to length.

Typical grade: AISI 304 / EN 1.4301

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Railings and Architectural Work

Railings and Architectural Work

Outdoors, a railing is exposed to rain and damp; 430 is not suitable outdoors. 304 for general outdoor work, 316 (Mo 2.0–2.5%) on the coast and in chlorinated air. Handrails are made from Ø16–76.1 mm round tube, uprights from 15×15–80×80 mm profile. Send the environment and the size and we'll pick the grade together.

Typical grade: AISI 304 / EN 1.4301 · AISI 316 / EN 1.4401

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Chemical and Water Treatment

Chemical and Water Treatment

On a line carrying aggressive fluid, 304 pits wherever chlorides are present. 316 is chosen for this environment (Mo 2.0–2.5% · Ni 10.0–13.0%). Lines are made from Ø16–76.1 mm tube, tank linings from sheet. Send the fluid and the size and we'll confirm the grade together.

Typical grade: AISI 316 / EN 1.4401

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Wet Areas and Drainage

Wet Areas and Drainage

430 is not used on permanently wet floors; wet areas are outside its range. Channel bodies are folded from 304 sheet (Cr 17.5–19.5% · Ni 8.0–10.5%); where the water is chlorinated or salty, 316. Gratings and supports are made from 15×15–80×80 mm profile, drain lines from Ø16–76.1 mm tube. Send the grade and size.

Typical grade: AISI 304 / EN 1.4301 · AISI 316 / EN 1.4401

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Automotive and Transport

Automotive and Transport

Trailers and bodies are exposed to road salt and damp; 430 is not suitable outdoors. 304 for frames and fittings, 316 (Mo 2.0–2.5%) on salted roads and coastal routes. Body frames are made from 15×15–80×80 mm profile, inner and outer cladding from sheet. The listed profiles have a wall thickness of 0.5–1.5 mm; let's check any load-bearing spot together.

Typical grade: AISI 304 / EN 1.4301 · AISI 316 / EN 1.4401

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Energy Plants

Energy Plants

The auxiliary lines of an energy plant (cooling and process water, cable supports, guards) run in damp conditions; the general answer is 304 (Cr 17.5–19.5% · Ni 8.0–10.5%). On chlorinated or salty water lines, 316 (Mo 2.0–2.5%). Water lines are made from Ø16–76.1 mm tube, cable supports from 15×15–80×80 mm profile, guards from sheet. Send the line type and size and we'll pick the grade together.

Typical grade: AISI 304 / EN 1.4301 · AISI 316 / EN 1.4401

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Marine and Port

Marine and Port

In salty, damp air 304 pits. For deck and quay fittings the grade goes to 316 (Mo 2.0–2.5% · Ni 10.0–13.0%). Handrails and guardrails are made from Ø16–76.1 mm tube, supports from 15×15–80×80 mm profile, guards from sheet. 316 is sourced on request: send the size and quantity.

Typical grade: AISI 316 / EN 1.4401

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Mining and Mineral Processing

Mining and Mineral Processing

Damp, dust and acidic process water are hard on plant equipment; 304 (Cr 17.5–19.5% · Ni 8.0–10.5%) for general platform work. On acidic water lines, 316 (Mo 2.0–2.5%). Conveyor platforms and railings are made from 15×15–80×80 mm profile and Ø16–76.1 mm tube, guards and channel covers from sheet. Send the grade and size.

Typical grade: AISI 304 / EN 1.4301 · AISI 316 / EN 1.4401

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Home Appliances

Home Appliances

For interior panels of white goods and small appliances, 430 is suitable and economical (Cr 16.0–18.0%); on surfaces that meet water and food (dishwasher tubs, washing-machine drums), 304. Bodies and panels are formed from sheet, heater and handle lines run in Ø16–76.1 mm tube. Send the grade, thickness and size.

Typical grade: AISI 430 / EN 1.4016 · AISI 304 / EN 1.4301

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