Stainless Steel 310 (AMS 5521 / AMS 5651) UNS S31000/S31008 Werkstoff 1.4842/1.4845:
Alloy 310 is a austenitic chromium-nickel stainless steel. Alloy 310 is used where good corrosion and heat resistance are required. Alloy 310 has excellent oxidation resistance and can resist oxidation or scaling up to 2000°F. Due to this Alloy 310 is widely used for furnace applications.

Specifications :

• AMS 5521 Sheet / strip / plate
• AMS 5572 Seamless tube
• AMS 5577 Welded tube
• AMS 5651 Bar / wire / forging
• QQ-S-763
• ASTM A240 / ASME SA240
• ASTM A167 / ASME SA167
• ASTM A276 / ASME SA276
• ASTM A479 / ASME SA479
• ASTM A484 / ASME SA484
• ASTM A176 / ASME SA176
• BS 970; 310S24
• Werkstoff 1.4842
• Werkstoff 1.4845
• AFNOR Z12CN25-20
• UNS S31000 (310)
• UNS S31008 (310S)

304 is available in Sheet, Strip, Plate, Tube, Bar (Round), Rod, Rings, Forgings.

Type 304 is a variation of the basic 18-8 grade, Type 304, with a higher chromium and lower carbon content. Lower carbon minimizes chromium carbide precipitation due to welding and its susceptibility to intergranular corrosion. In many instances, it can be used in the ”as-welded“ condition, while Type 304 must be annealed in order to retain adequate corrosion resistance.

Type 304L is an extra low-carbon variation of Type 304 with a 0.03% maximum carbon content that eliminates carbide precipitation due to welding. As a result, this alloy can be used in the ”as-welded“ condition, even in severe corrosive conditions. It often eliminates the necessity of annealing weldments except for applications specifying stress relief. It has slightly lower mechanical properties than Type 304.

Specifications : Types 304 Stainless Steel and 304L Stainless Steel are covered by the following specifications:

• Type 304 L Vac Melt (AMS 5647, QQ-S-763, ASME SA 479, ASTM A 276, ASTM A 479, ASTM A 484)
• AMS 5501 Sheet / strip 125ksi
• AMS 5511 Sheet /strip (ann)
• AMS 5513 Sheet / strip (ann)
• AMS 5560 Seamless tube
• AMS 5563 1/4Hd seamless/welded
• AMS 5564 1/8Hd seamless/welded
• AMS 5565 Welded tube
• AMS 5566 Seamless/welded tube
• AMS 5567 Seamless/welded tube
• AMS 5569 Seamless/ welded tube
• AMS 5575 Welded tube
• AMS 5639 Bar / Forgings (304)
• AMS 5647 Bar / Forgings (304L)
• MIL-T-8506 Seamless /welded tube
• MIL-T-5695 Seamless / welded tube
• MIL-T-6845 Seamless / welded
• MIL-T-8504 Seamless/welded tube
• MIL-T-6737 Welded tube
• QQ-S-763
• ASTM A276 / ASME SA276
• ASTM A479 / ASME SA479
• ASTM A484 / ASME SA484
• BS 970; 304S31 / 304S12
• Werkstoff 1.4306
• AFNOR Z2CN18-10
• UNS S30400
• UNS S30403

Harsh steel is a Leading Stockholder and Exporter of Stainless steel Strips in Grades such as SS 201, SS 202, SS 301, SS 304, SS 304L, SS 316, SS 316L, SS 310, SS 317, SS 347, SS 410 and SS 430 for various industries such as Chemical, Pharma, Oil and gas, Nuclear industry, Defence sector etc. Harsh steel situated in Mumbai, Maharashtra, India. It has mastered the art of providing the best of its Quality Stainless steel strips with all Tempers which includes Annealed, 1/8 hard, 1/4 hard, 1/2 hard, 3/4 hard, full hard, Extra Full hard, and Heat Treated, & Spring Tempers, hardness from HV160 to HV620.

List of Stainless steel Strips Stock available or can be made available such as below with its sizes and specifications:

Stainless steel 201 strips :

Harsh steel Supplies and Exports Stainless steel 201 Strips from 2.5mm wide to 400mm, slit to close tolerances. We supply in below specifications: -

Harsh steel provided the Specification as below: -

• Material is manufactured on a bespoke basis to the customer's individual needs and hardness.


• Material can be supplied in coil or length form


• Hardness of material to customer's specific requirements.

Harsh steel Export and Supply capabilities include:

• Annealed & Precision


• thickness 0.1mm to 6.00mm


• width 2.5mm to 1320mm (slit to close tolerances)

Harsh steel provides the Cold rolled mill finishes such as:

• 2D - cold rolled, heat treated, pickled.


• 2B - cold rolled, heat treated, pickled, skin passed on bright rolls.


• 2R(BA) - cold rolled, bright annealed


• HR - hot rolled, annealed

Harsh Steel is an Indian Based ISO 9001-2008 Quality Offshore manufacturer of precision machined Auto parts, aerospace and medical components and assemblies and has been Supplying and Exporting Precision CNC/VMC components in India and other countries such as UK, US, MIDDLE EAST, OMAN, KUWAIT, QUATAR, CZECH REPUBLIC, TURKEY and many other countries. Harsh steel produces close-tolerance, precision machined auto parts, aerospace and medical components upto 300mm diameter. The process include Swiss screw machining, turning, milling, center-less grinding, assembly and supply-chain logistics. Harsh steel Specialities include fasteners, pins, valve bodies, bushings, pistons, sleeves, housings, medical implants, medical plates, auto parts and other custom CNC and VMC precision machined components.

Harsh steel provided the Specification as below: 

• Material is manufactured on a bespoke basis to the customer's individual needs and hardness.
• Material can be supplied in coil or length form
• Hardness of material to customer's specific requirements.

Harsh steel provides the Cold rolled mill finishes such as:

• 2D - cold rolled, heat treated, pickled.
• 2B - cold rolled, heat treated, pickled, skin passed on bright rolls.
• 2R(BA) - cold rolled, bright annealed
• HR - hot rolled, annealed

Harsh steel provides Stainless steel 202 Cold rolled mill finish strips such as:

• Stainless Steel 202 Strip 2D - cold rolled, heat treated, pickled.
• Stainless Steel 202 Strip 2B - cold rolled, heat treated, pickled, skin passed on bright rolls.
• Stainless Steel 202 Strip 2R(BA) - cold rolled, bright annealed
• Stainless Steel 202 Strip HR - hot rolled, annealed

Stainless Steel 202 Strip Processing
The annealing temperature for Type 202 is between 1850-2000°F. Rapid cooling through the carbide precipitation range (1500 – 800 o F) is necessary to keep the carbides in solution and prevent sensitization. Type 202 is not hardenable by thermal treatment; it is only hardenable by cold working

Stainless Steel 202 Strip Welding:
Type 202 can be welded by all conventional methods applied to 18 percent chromium, 8 percent nickel steels. Filler metal of the conventional chromium-nickel analyses can be used. Like other austenitic stainless steels where carbon is not controlled below 0.03%, Type 202 is susceptible to intergranular corrosion in the weld heat affected zone.

Stainless Steel 202 Strip Corrosion:
Type 202 is resistant to a wide variety of mild to moderately corrosive environments. It has corrosion resistance approaching that of Types 301and has been successfully substituted for 304 in many mild environments.

Harsh steel provided the Specification of Stainless steel 202 strips as below: -
Material is manufactured on a bespoke basis to the customer's individual needs and hardness.
Material can be supplied in coil or length form
Hardness of material to customer's specific requirements.

Harsh steel Export and Supply Stainless steel 304H strips capabilities include:

• Stainless Steel 304H Strip Annealed & Precision
• Stainless Steel 304H Strip thickness-0.1mm to 6.00mm
• Stainless Steel 304H Strip width-2.5mm to 1320mm (slit to close tolerances)

Harsh steel provides Stainless steel 304H Cold rolled mill finish strips such as:

• Stainless Steel 304H Strip 2D - cold rolled, heat treated, pickled.
• Stainless Steel 304H Strip 2B - cold rolled, heat treated, pickled, skin passed on bright rolls.
• Stainless Steel 304H Strip 2R(BA) - cold rolled, bright annealed
• Stainless Steel 304H Strip HR - hot rolled, annealed

Stainless Steel 304h Strip Applications:

• Stainless Steel 304H Strip is often used as a material of construction up to about 1500oF. Some examples of applications that Alloy 304H is commonly used for includes:
• Most commonly used in petroleum refineries
• Boilers
• Heat exchangers
• Condensers
• Pipelines
• Cooling towers
• Steam exhausts
• Electric generation plants
• On occasion will be found in fertilizer and chemical plants

Stainless Steel 304h Strip Heat Resistance:
Good oxidation resistance in intermittent service to 870O C and in continuous service to 920O C
Continuous use of Alloy 304 in the 425-860°C range is not recommended if subsequent aqueous corrosion resistance is important
Alloy 304H has higher strength at elevated temperatures so is often used for structural and pressure-containing applications at temperatures above about 500°C and up to about 800°C
Alloy 304H will become sensitized in the temperature range of 425-860°C; this is not a problem for high temperature applications, but will result in reduced aqueous corrosion resistance.

Stainless Steel 304h Strip Corrosion Resistance:

• Resistance to corrosion in oxidizing environments is a result from the 18 to 19% chromium that the 304 alloys contain
• Resistance to moderately aggressive organic acids is a result from the 9 to 11% nickel that the 304 alloys contain
• At times, Alloy 304L may show a lower corrosion rate than the higher carbon Alloy 304; otherwise, the 304, 304L, and 304H alloys may be considered to perform uniformly in most corrosive environments.

Stainless Steel 304h Strip Welding Characteristics:

• Readily welded by most standard processes.
• May be necessary to anneal the plate after welding
• Annealing helps restore corrosion resistance lost by the sensitization.

Stainless Steel 304h Strip Processing - Hot Forming:

• Working tempertarues of 1652-2102 degrees F are recommended
• Material should be annealed at 1900 degrees F
• Material should be water quenched or or rapidly cooled

Stainless Steel 304h Strip Processing - Cold Forming:

• Alloy is quite ductile and forms easily
• Helps increase strength and hardness of alloy
• May leave alloy slightly magnetic

Stainless Steel 304h Strip Machinability:

• Subject to work hardening during deformation
• Subject to chip breaking
• Best results achieved through slower speed, heavier feeds, good lubrication, and sharp tooling