1.4542 Stainless Steel

1.4542 stainless steel stockholders and suppliers. 1.4542 is a precipitation-hardening, corrosion-resistant stainless grade available in round and flat form, supplied throughout the UK. In its solution-annealed condition, it remains relatively soft and ductile, but when appropriately aged, it achieves medium to high strength with good toughness. As a martensitic precipitation-hardening stainless, it is recognised for delivering high tensile and yield strength through solution annealing followed by a single or double low-temperature ageing process. In many environments, the corrosion resistance of 1.4542 is similar to that of 304 austenitic stainless steel.

1.4542 stainless steel is held on stock and can be delivered throughout the UK.
All orders are supplied in accordance with our ISO 9001 accreditation.

Related Specifications
Alternative stainless grades we supply  FV520B | S31254 | 904L | 310 | 321 | 316 | 440B | 440C | 420 | 410 | 416 | 431 | S31803 | S32760

Form of Supply

1.4542 is commonly stocked in round bar in the following conditions:-
Condition A
H900
H1025
H1075
H1150+H1150

Flat bar is stocked in Condition A and can be cut to your specific requirements. We can also offer precision ground bar which can be produced and supplied ground to your required tolerances.

Click here to contact our experienced sales team who will assist you with your 1.4542 stainless steel enquiry.

  • Flat
  • Diameter

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Applications

Used in many industries including offshore, marine, food, paper mills, oil field and aerospace. 1.4542 is used for components such as fasteners, couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings.

Carbon 0.07% max Chromium 15.00-17.50%
Manganese 1.00% max Nickel 3.00-5.00%
Silicon 1.00% max Copper 3.00-5.00%
Phosphorous 0.04% max Niobium + 0.15-0.45%
Sulphur 0.03% max Tantalum

Heat slowly and uniformly to 1180-1200ºC. Do not forge below 1010ºC. Hold at temperature for one hour prior to forging the component. Cool in air to room temperature. Forged components require solution annealing before any further heat treatment.

1.4542 stainless has very good corrosion resistance properties. Corrosion tests in service have shown good results in all aged conditions. With better corrosion resistance to standard hardenable stainless grades such as 431, 420 and 410. It has corrosion resistance comparable to 304 stainless specification.

1.4542 requires similar arc and resistance welding processes to those used on standard specifications of stainless steel. Welding up to 100mm thick can be carried out without the requirement of pre heating due to its low hardness. We recommend you contact your welding consumables supplier who should provide you full assistance and information on welding 1.4542 stainless steel.

Similar in machining characteristics to 304 and 410 stainless steel specifications. Condition H900 has high hardness and strength which is the most difficult to machine and the machining of this is recommended to be carried out at 60% of the rate which is used for Condition A.

For increase resistance to surface wear, with a slight reduction in corrosion resistance, it can be nitrided. When nitrided at 540ºC an approximate hardness of 64-67 HRc is achievable, with a surface hardness depth of up to 0.15mm. The steel maintains a high core strength.

1.4542 is commonly supplied in the solution treated condition (Condition A). Heat treated at different temperatures will offer a wide range of properties. (We also hold stock in H1150+H1150).

Condition Temp. [°C] Hardness
Time (hours)		 Type of
Cooling		 Hardness
HB HRc
A 1038 1/2 Oil/Air (to below 32°C) 363 max 39 max
H900 480 1 Air 388-444 40-47
H925 495 4 Air 375-429 38-45
H1025 550 4 Air 331-401 34-42
H1075 580 4 Air 302-375 31-38
H1100 595 4 Air 293-363 30-37
H1150 621 4 Air 277-352 28-38
H1150+H1150 621-621 4 followed by 4 Air/Air 255-311 24-33

Condition A H900 H925 H1025 H1075 H1100 H1150 H1150
+H1150		 H1150M
Tensile Strength N/mm² 1034 1380 1310 1170 1140 1035 1000 860 862
0.2% YS N/mm² 650 1275 1200 1140 1035 930 860 725 585
Reduction of Area % 30-60 50 54 56 58 58 60 60 68
Elongation % 6-15 14 14 15 16 17 19 16 22
Charpy Impact J – >20 34 47 61 61 68 41 135

*Longitudinal

Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of 1.4542 stainless steel.

Stainless steel 1.4542 is available with BS EN 10204 3.1 mill certificate, please request when placing any orders.

1.4542 stainless is supplied in accordance with our ISO 9001:2015 registration.

UK Delivery UK Delivery only £35.00
ISO 9001:2015 Registration