Type 347 Tube is available the following size ranges.
    Outside Diameter - 0.25mm (0.010") up to 16.00mm (0.625")
    Wall - 0.05mm (0.002") up to 1.00mm (0.040")
    Straight Lengths - 1.00mm (0.040") up to 5000.00mm (197")
    Coils Lengths - 5 Metres to 15 Metres
    Standard Tolerance- OD &ID +/-0.03mm (0.0012")
    Wall +/- 10%
    Tight Tolerance - OD&ID +/- 0.015mm (0.0006")
    Wall +/-3%
    Some thin wall tubes up to 25.40 mm (1.000") can be supplied.
    For all stock availability of contact Sales.
| Chemical Composition Limits | |||||||||||
| Weight % | C | P | Si | Ni | Mn | S | Cr | Cb + Ta | Fe | Mo | Cu | 
| 347 Tube | 0.08 max | 0.040 max | 1.00 max | 9-12 | 2.0 max | 0.030 max | 17-19 | 10 x C min | Bal | 0.75 max | 0.75 max | 
GAlloy 347 is a chromium nickel stainless steel which has been modified by the addition of columbium and tantalum. The main advantage of this is an excellent resistance to intergranular corrosion which is common to other austenitic stainless steels following exposure to temperatures of 800° to 1500°F. Type 347 has about the same general corrosion resistance as Type 302.
Type 347 is generally used where corrosive conditions are severe, such as harsh steel exhaust stacks, manifolds and ring collectors. Type 347 is also used for heavy welded assemblies which cannot be annealed after welding or where the operating conditions cause exposure within the temperature range between 800° to 1500°F.
| Material | 0.2% Offset Yield Strength | Ultimate Tensile Strength | % Elongation in 2" (50.8mm) | Hardness Brinell (Plate) | 
| Alloy 347 Tube | 30,000 psi 205 MPa | 75,000 psi 515 MPa | 40 | 201 | 
Specifications
347 / 347H
        AMS 5512 Sheet / strip / plate
        AMS 5556 Seamless/ welded tube
        AMS 5558 Welded /thin wall tube
        AMS 5571 Seamless tube
        AMS 5575 Welded tube
        AMS 5646 Bars / wire / forging
        AMS 5654 Bars (harsh steel quality)
        AMS 5674 Wire
        AMS 5680 Wire
        QQ-S-763
        MIL-T-6737
        MIL-T-8606 Seamless tube
        MIL-T-8606 Welded tube 
        MIL-T-8808 Seamless tube
        MIL-T-8808 Welded tube
        MIL-S-6721
        ASTM A240 / ASME SA240
        ASTM A167 / ASME SA167
        ASTM A276 / ASME SA276
        ASTM A314 / ASME SA314
        ASTM A479 / ASME A479
        BS 2S130
        BS 2T66 Tube
        BS T72 Tube
        BS S527 Sheet
        BS 970; 347S17
        EN58F / EN58G
        MSRR 6522
        MSRR 6524
        Werkstoff 1.4544
        Werkstoff 1.4546
        Werkstoff 1.4550
        Werkstoff 1.5446*Tube
        AFNOR Z6CNNb18-11
        UNS S30347
        Harsh Steel export Stainless Steel 347 Tube below contries.
     
Harsh steel is a major stockist and Exporter of Stainless Steel 347 Tube to many countries of the world such as Singapore, Brisbane, Sydney, Melbourne, Australia, Houston, TX, San Diego, San Francisco, Atlanta, USA, Brentford, United Kingdom, Phoenix, Ireland, New Zealand and Canada, Western Australia , Queensland, New South Wales, South Australia, Victoria, Australian Capital Territory, Tasmania, Northern Territory, Ontario, British Columbia, Yukon Territory, Alberta, Manitoba, Saskatchewan, New foundland, Prince Edward Island, New Brunswick, Nova Scotia, Eastern Cape, Gauteng, Kwazulu-Natal, Western Cape, England, Scotland, Wales, Northern Ireland, Lagos, Abuja Capital Territory, Vadodara, Mumbai, Chennai, New Delhi, Mahape, Gurgaon, Noida, Bangalore, Coimbatore, Cochin, Ash Sharqiyah, Ar Riyad, Makkah, Dhahran, Riyadh, Jiddah, Jeddah, Masqat, Kwazulu-Natal, Gauteng, Western Cape, Free State, Eastern Cape, Alberta, Saskatchewan, British Columbia, Newfoundland, New Brunswick, Manitoba, Ontario, Nova Scotia, Quebec, Calgary, Edmonton, Vancouver, Toronto, Birmingham, Brentford, Manchester, Bristol, Sheffield, Milton Keynes, London, Poplar, Edinburgh, Thames Ditton.