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40 results

Standards (10)

GB/TASTMENJISISO
06Cr19Ni103041.4301SUS304X5CrNi18-10
022Cr19Ni10316L1.4404SUS316LX2CrNiMo17-12-2
022Cr17Ni12Mo23161.4401SUS316X5CrNiMo17-12-2
06Cr18Ni11Ti3211.4541SUS321X6CrNiTi18-10
022Cr23Ni5Mo3N22051.4462SUS329J3LX2CrNiMoN22-5-3
022Cr19Ni10304L1.4307SUS304LX2CrNi18-9
06Cr17Ni12Mo2316Ti1.4571SUS316TiX6CrNiMoTi17-12-2
022Cr19Ni13Mo3317L1.4438SUS317LX2CrNiMo18-15-4
S3220522051.4462SUS329J3LX2CrNiMoN22-5-3
S3275025071.4410SUS329J4LX2CrNiMoN25-7-4

Knowledge (15)

ARTICLE

Stainless steel grade selection for coastal and chloride environments

How chloride exposure, temperature and maintenance decide between 304, 316L and duplex grades.

ARTICLE

Auditing a stainless supplier: the five documents that matter

Certificates, traceability, inspection reports and what to verify before the first order.

ARTICLE

Coil, sheet or circle: how the ordered form changes landed cost

The same tonne of stainless has three different cost structures depending on the form you buy.

ARTICLE

Thickness tolerance: what a buyer should put in the PO

Nominal thickness is not a promise — the acceptance range is.

ARTICLE

Weld oxidation is a corrosion site — not just a colour problem

Why heat tint must be removed and how to specify cleaning after welding.

Q&A (15)

S
surface1 answers

Should weld seams on 316L be passivated if they will be painted?

Part of a 316L frame will be painted, the rest stays bare. Do the weld seams under paint still need passivation?

L
trade1 answers

Lead time expectations for cut-to-length 316L in Europe?

A German customer expects 3-week delivery for cut-to-length 316L sheet from an Asian supplier. Is that realistic, and what should we promise?

I
quality1 answers

Is there a practical way to test 2205 duplex without a lab?

We receive 2205 plate and need a quick incoming check before cutting. A full chemical analysis takes days. What can we do in-house?

H
trade
STANDARD_GUIDE

Reading ASTM G48 pitting test results

Methods A, B and C, how test conditions differ from service, and the limits of the result.

FAQ

Fixing dross when laser cutting stainless steel

Adjust focus, speed, gas pressure and nozzle condition in a defined order.

ARTICLE

Heat input control when welding 2205 duplex

Ferrite-austenite balance, filler selection and practical welding windows.

STANDARD_GUIDE

HS classification for stainless flat products

7219 versus 7220, hot versus cold rolled, and common classification mistakes.

ARTICLE

CBAM data preparation for stainless steel exports

CN codes, production routes, direct and indirect emissions, and verification requirements.

1 answers

How should we pack circles to avoid transit damage?

We are shipping 500 mm 304 circles to a cookware factory. Last shipment had bent edges. What packaging works for circles?

W
standards1 answers

What does 'annealed and pickled' actually guarantee?

A supplier quotes 'annealed and pickled' 316L plate, another quotes 'hot rolled, annealed'. Is there a meaningful difference in corrosion resistance or mechanical properties?

L
processing1 answers

Laser welding 0.8 mm 304 — what shielding gas?

We are laser welding thin 304 sheet for appliance panels. Some references say argon, some helium mix. What do you use for consistent cosmetic welds?

H
quality1 answers

How do you verify a mill certificate is genuine?

We received an EN 10204 3.1 certificate that looks right, but the heat number cannot be found on the mill's website. How do buyers actually verify these?

C
materials1 answers

Can we substitute 316L with 304L for a urea storage tank?

A customer wants to cut cost by using 304L instead of 316L for a urea solution tank at ambient temperature. Is that acceptable from a corrosion standpoint?

W
surface1 answers

What surface finish should I specify for a hygienic conveyor frame?

We are building a stainless conveyor frame for a dairy plant. The fabricator offers 2B or No.4. Does the finish matter for cleaning and inspection, or is it purely cosmetic?

P
surface1 answers

Pickling paste or electrolytic cleaning for weld seams on site?

For site-installed 316L pipework, the contractor wants to use pickling paste on weld seams. Is that acceptable, or should we require electrolytic cleaning?