Grade Finder

Search the full grade index by designation, standard, equivalent or application.

Every grade we document

24 grades found

AISI 4140 / 42CrMo4

AISI 4140 / 42CrMo4

AISI 4140EN 42CrMo4 / 1.7225

The benchmark chromium-molybdenum through-hardening engineering steel. Excellent combination of strength, toughness and machinability in the quenched and tempered condition.

3 forms available
AISI 4340 / 34CrNiMo6

AISI 4340 / 34CrNiMo6

AISI 4340EN 34CrNiMo6 / 1.6582

Nickel-chromium-molybdenum steel with very high hardenability and toughness in heavy sections, chosen for the most highly stressed machined components.

2 forms available
Armox 500T

Armox 500T

SSAB
Nominal Hardness 480 - 540 HBW

The most widely used protection plate worldwide. Balances ballistic performance with the weldability and formability a fabricator needs to build complete armoured structures.

2 forms available
Armox 600T

Armox 600T

SSAB
Nominal Hardness 570 - 640 HBW

High hardness protection plate delivering the same protection level at reduced weight, or a higher threat level at the same weight, compared with 500 HBW armour.

2 forms available
Duplex 2205

Duplex 2205

UNS S31803 / S32205EN 1.4462

The most widely used duplex grade. Roughly double the yield strength of 316L, allowing thinner and lighter sections while delivering far better chloride stress corrosion cracking resistance.

6 forms available
Super Duplex 2507

Super Duplex 2507

UNS S32750 / S32760EN 1.4410 / 1.4501

Super duplex with PREN above 40 for the most aggressive seawater and sour service. S32760 (Zeron 100) adds tungsten and copper for enhanced acid resistance.

5 forms available
S690QL

S690QL

EN S690QL / 1.8928

Quenched and tempered structural steel with 690 MPa minimum yield. Allows dramatic weight reduction in load bearing structures against conventional S355.

1 forms available
S960QL

S960QL

EN S960QL / 1.8933

Ultra high strength quenched and tempered plate for the most weight-critical lifting and mobile equipment structures.

1 forms available
S1100QL

S1100QL

EN S1100QL

The highest yield strength structural plate in commercial supply, used where every kilogram of structural weight carries a payload penalty.

1 forms available
Inconel 625

Inconel 625

UNS N06625EN 2.4856

Nickel-chromium-molybdenum alloy strengthened by niobium. Exceptional strength and corrosion resistance from cryogenic temperatures to 980 C without heat treatment.

5 forms available
Inconel 600

Inconel 600

UNS N06600EN 2.4816

Solid solution nickel-chromium-iron alloy with high resistance to oxidation, carburisation and chloride ion stress corrosion cracking at elevated temperature.

5 forms available
Monel 400

Monel 400

UNS N04400EN 2.4360

Nickel-copper alloy with outstanding resistance to flowing seawater, hydrofluoric acid and alkalis, and total immunity to chloride stress corrosion cracking.

5 forms available
Hastelloy C276

Hastelloy C276

UNS N10276EN 2.4819

Nickel-molybdenum-chromium alloy with tungsten, regarded as the most universally corrosion resistant alloy available for both oxidising and reducing media.

5 forms available
304 / 304L

304 / 304L

UNS S30400 / S30403EN 1.4301 / 1.4307

The workhorse austenitic stainless steel. 304L's lower carbon content prevents carbide precipitation during welding, making it the default choice for welded fabrications that cannot be post-weld annealed.

6 forms available
316 / 316L

316 / 316L

UNS S31600 / S31603EN 1.4401 / 1.4404

Molybdenum-bearing austenitic stainless steel. The 2-3% Mo addition transforms pitting resistance in chloride-bearing media, making 316L the baseline grade for marine and chemical service in the Gulf.

6 forms available
321 / 347

321 / 347

UNS S32100 / S34700EN 1.4541 / 1.4550

Titanium and niobium stabilised austenitic grades. The stabilising addition ties up carbon so the steel resists intergranular corrosion after prolonged exposure in the 425-815 C sensitisation range.

5 forms available
904L

904L

UNS N08904EN 1.4539

High alloy austenitic grade with 4-5% molybdenum and copper, bridging the gap between 316L and nickel alloys for sulphuric and phosphoric acid service.

5 forms available
Titanium Grade 2

Titanium Grade 2

UNS R50400EN 3.7035

Commercially pure titanium, the industry workhorse. Fully resistant to seawater and oxidising chlorides with excellent formability and weldability.

6 forms available
Titanium Grade 5 (Ti-6Al-4V)

Titanium Grade 5 (Ti-6Al-4V)

UNS R56400EN 3.7165

The most widely used titanium alloy, accounting for the majority of all titanium consumption. Roughly three times the strength of commercially pure titanium at the same density.

3 forms available
UHMW PE1000

UHMW PE1000

Orbilan
Material PE-UHMW, PE1000

Standard ultra high molecular weight polyethylene liner sheet. The lowest coefficient of friction of any engineering polymer combined with outstanding impact absorption.

2 forms available
UHMW PE8000

UHMW PE8000

Orbilan
Material PE-UHMW enhanced, PE8000

Enhanced UHMW-PE with a higher molecular weight delivering around 30% better abrasion performance than standard PE1000 for the most demanding liner duties.

2 forms available
Hardox 450

Hardox 450

SSAB
Nominal Hardness 450 HBW

The most versatile abrasion resistant plate in the range. 450 HBW delivers roughly 2.5 times the service life of mild steel while remaining straightforward to bend, cut and weld in a normal workshop.

2 forms available
Hardox 500

Hardox 500

SSAB
Nominal Hardness 500 HBW

Higher hardness plate for severe sliding abrasion where 450 HBW wears out too quickly, while retaining good workshop formability.

2 forms available
Hardox 600

Hardox 600

SSAB
Nominal Hardness 600 HBW

The hardest abrasion resistant plate in general production, reserved for extreme sliding wear where part replacement downtime dominates cost.

2 forms available