Stainless Steel 347H Round Bar

ASTM A276 347H Stainless Steel Round Bar Stockist in Mumbai India. ASTM A276 347H Hex Bar, Flat Bar, Forged Bar, Square Bar SS 347H Bright Bar Stockist and Supplier in Mumbai India.


Preston Pipes & Alloys is a trusted name in the metal industry, offering quality stainless products across India and beyond. One of our key offerings is the stainless steel 347H round bar, a high-temperature grade known for its strong corrosion and heat resistance. This bar contains elements like carbon, chromium, manganese, nickel, phosphorus, sulfur, silicon, and columbium/tantalum. These elements help improve strength and oxidation resistance. We manufacture these bars using hot rolled, cold rolled, hot forging, rolling, and machining methods to match diverse industrial needs. As leading 347H stainless round bar suppliers, we ensure precision, durability, and timely delivery.


UNS S34709 Round Bars offer excellent mechanical strength and maintain hardness even in tough conditions. This makes them ideal for pressure and heat uses. They also feature strong creep resistance and long-lasting performance under thermal stress. Their physical traits include good density and thermal conductivity which ensures smooth heat transfer in processing equipment. Our 347H Rods are withstand demanding applications without warping or losing strength, making them a reliable choice for many industries.


SS 347H Round Bar

ASTM A276 347H Round Bars follow top standards and come in various sizes and shapes. Sizes range from 14mm to 300mm, with thickness from 50mm to 6000mm long, and lengths from 1 to 6 meters or custom-cut as needed. We supply these in round, square, hex, billet, ingot, and forged forms. These bars are widely used in chemical plants, food processing, pharmaceutical production, petroleum refining, waste heat recovery systems, and services involving polythionic acid. The Stainless Steel 347H Round Bar performs well in areas that require strength and corrosion resistance.


We follow strict quality checks to make sure each 347H round bar meets industry expectations. Every bar goes through hardness, mechanical, ultrasonic, PMI, IGC and flattening tests. These tests help to ensure the bar's strength, structure, and dependability. We also offer a variety of finishes, end types, lengths, and custom dimensions to meet your specific requirements. All products meet global standards such as ASTM A276/A479 and ASME SA276/A479. As a reputable SS 347H round bar stockist, we guarantee prompt delivery.

Stainless Steel 347H Round Bar Specification

Specifications ASTM A276, ASME SA276 / ASTM A479 ASME SA479
Standard EN, DIN, JIS, ASTM, BS, ASME, AISI
SS 347H Round Bars Outside Diameter in the range of 4mm to 500mm
SS 347H Bright Bars Outside Diameter in the range of 4mm to 100mm
SS 347H Hex Bars 18mm – 57mm (11/16″ to 2-3/4″)
SS 347H Square Bars 18mm – 47mm (11/16″ to 1-3/4″)
SS 347H Flat Bars 1/2” to 10” in thickness range of 2mm to 150mm
Finish Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Length 1 to 6 Meters, Custom Cut Lengths
Form Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.

Common Type of Stainless Steel 347H Round Bar

SS 347H Hex Bar

SS 347H Hex Bar

SS 347H Bright Bar

SS 347H Bright Bar

SS 347H Cold Rolled Bar

SS 347H Cold Rolled Bar

SS 347H Flat Bar

SS 347H Flat Bar

SS 347H Square Bar

SS 347H Square Bar

SS 347H Rectangular Bar

SS 347H Rectangular Bar

SS 347H Polished Round Bar

SS 347H Polished Round Bar

SS 347H Hollow Bar

SS 347H Hollow Bar


Contact Preston Pipes and Alloys for best offer & competitive
quotation of Stainless Steel 347H Round Bar

Stainless Steel 347H Round Bar Chemical Composition

Grade C Mn Si P S Cr Cb Ni Fe
SS 347 0.04 – 0.10 2 max 1.0 max 0.045 max 0.030 max 17 – 19 8xC – 1.10 9.0 – 13.0 62.72 min

Stainless Steel 347H Round Bar Mechanical Properties

Density Melting Point Tensile Strength Yield Strength (0.2% Offset) Elongation
8.0 g/cm3 1454 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

Stainless Steel 347H Round Bar Equivalent Material

STANDARD WERKSTOFF NR. UNS JIS EN
SS 347H 1.4961 S34709 SUS 347H X6CrNiNb18-12

Stainless Steel 347H Round Bar Weight Chart

Diameter Weight Chart Dia Weight Chart
(mm) per metre (kg) (in) per metre (kg)
3mm 0.06 1/8" 0.06
4mm 0.10 3/16" 0.14
5mm 0.16 1/4" 0.25
6mm 0.22 5/16" 0.39
7mm 0.30 3/8" 0.56
8mm 0.40 7/16" 0.77
10mm 0.62 1/2" 1.00
12mm 0.89 9/16" 1.22
14mm 1.22 5/8" 1.56
15mm 1.40 11/16" 1.89
16mm 1.59 3/4" 2.25
18mm 2.01 7/8" 3.07
20mm 2.48 1" 4.03
22mm 3.00
24mm 3.57
25mm 3.88

Industrial Application of Stainless Steel 347H Round Bar