Round bars

Round bar
Supported standards JIS G 4303 Stainless steel bars
Type of steel JIS standards and AICHI standards

Product catalog

Features

Product dimensions

Specifications (finish) Range of dimensions
Peeling finish φ10mm to 400mm
Acid bath finish φ10mm to 80mm
  • Some sizes cannot be manufactured depending on type of steel.

Product specifications

Dimensional tolerance (Peeling finish)(unit: mm)

Diameter Dimensional tolerance
Up to 15 +0.15
−0
over 15 under 25 +0.15
−0
over 25 under 80 +0.25
−0
over 80 under 125 +0.50
−0
over 125 under 150 +1.0
−0
over 150 under 400 +2.0
−0

Dimensional tolerance (acid bath finish)(unit: mm)

Diameter Dimensional tolerance Eccentricity or deviation
Up to 15 ±0.3 75% or less of the range of dimensional tolerance
over 15 under 25 ±0.4
over 25 under 35 ±0.5
over 35 under 50 ±0.6
over 50 under 80 ±0.8
over 80 under 100 ±1.0
over 100 under 120 ±1.3
over 120 under 160 ±1.6
over 160 under 200 ±2.0
Exceeding 200 ±1.2%

Other

Category Dimensional tolerance
Bending 3 mm or less per meter, total less than 3 (mm/m) × total length (meters) or less
Length 3 to 6m
Length tolerance +40mm, −0mm

Type of steel

Standards Manufactured type of steel
JIS standards Conforming to JIS G 4303
AICHI standards Refer to the product catalog (Stainless steel) and the table below

Major brand steel types of AICHI specification

Category Name of type of steel Major components and characteristics
Martensite AUS403H 12Cr-0.03C
Improved cold processing characteristics based on SUS403
AUJ440C 13Cr-0.6C
Stainless steel for bearings have strength equal to SUS440C and corrosion resistance
AUS6M 13Cr-0.6C-Mo-V
Improved hardness, abrasion resistance and tempering resistance
AUS8 13Cr-0.8C-Mo-V
Improved hardness, abrasion resistance and tempering resistance
ACUTO440 17Cr-0.8C-1Mo-V
Achieves both sharpness as a blade and high corrosion resistance
Austenite AUS304ST 18Cr-8Ni-0.2N-0.02C-Nb
High strength from controlled rolling with SUS304N2 base
SUS304K1 19Cr-9.3Ni-0.8Cu-0.07N
Satisfies non-magnetism after drawing with SUS304 base
SUS304KM 19Cr-9Ni-0.5Cu-0.08N
Satisfies non-magnetism after drawing with SUS304 base
AUS205 17Cr-14Mn-0.8Ni-0.35N
Excellent machining hardness from cold processing and satisfies non-magnetism after treatment
AUT-1 17Cr-12Ni-5Mn-4Si-N
Austenitic stainless steel for sliding components with excellent seizure prevention
Hardened deposition TXA208 16Cr-7Ni-1.2Mo-1.8Cu-Nb
Achieves corrosion resistance, high strength and high toughness with SUS630 base

Applications

Construction of the new AICHI STEEL main building
Application Construction of the new AICHI STEEL main building
Field Building construction
Shape Channel bar, Angle bar, Round bar, Compression bar, Flat bar
Type of steel SUS304A
Reason design characteristics
Truss girder
Application Truss girder
Field Building construction
Shape Round bars
Type of steel SUS304A
Reason Corrosion resistance
Furukawa underground reservoir ventilation duct support fittings
Application Furukawa underground reservoir ventilation duct support fittings
Field Civil engineering
Shape H-beam, Flat bar, Round bar, etc.
Type of steel SUS304
Reason Corrosion resistance
Boat shafts propeller shafts
Application Boat shafts propeller shafts
Field Shipbuilding
Shape Round bars
Type of steel TXA208
Reason Corrosion resistance, high strength, high toughness
Toyota fuel cell vehicle: MIRAI High pressure hydrogen components
Application Toyota fuel cell vehicle: MIRAI
High pressure hydrogen components
Field Fuel cell vehicle & Hydrogen station
Shape Round bars
Type of steel AUS316L-H2
Reason High-pressure resistance circulation stiffening characteristics
Hydrogen station devices Filling nozzle
Application Hydrogen station devices Filling nozzle
Field Fuel cell vehicle & Hydrogen station
Shape Round bars
Type of steel AUS316L-H2
Reason High-pressure resistance circulation stiffening characteristics
Hydrogen stations emergency withdrawal coupler
Application Hydrogen stations emergency withdrawal coupler
Field Fuel cell vehicle & Hydrogen station
Shape Round bars
Type of steel AUS316L-H2
Reason High-pressure resistance circulation stiffening characteristics
Ultra-high pressure back pressure valve
Application Ultra-high pressure back pressure valve
Field Fuel cell vehicle & Hydrogen station
Shape Round bars
Type of steel AUS316L-H2
Reason High-pressure resistance circulation stiffening characteristics
Hydrogen station overflow check valves
Application Hydrogen station overflow check valves
Field Fuel cell vehicle & Hydrogen station
Shape Round bars
Type of steel AUS316L-H2
Reason High-pressure resistance circulation stiffening characteristics
Hydrogen station pressure reduction valve
Application Hydrogen station pressure reduction valve
Field Fuel cell vehicle & Hydrogen station
Shape Round bars
Type of steel AUS316L-H2
Reason High-pressure resistance circulation stiffening characteristics
High pressure hydrogen manual valves/check valves
Application High pressure hydrogen manual valves/check valves
Field Fuel cell vehicle & Hydrogen station
Shape Round bars
Type of steel AUS316L-H2
Reason High-pressure resistance circulation stiffening characteristics

Product inquiries

Phone

AICHI STEEL Corporation
Sales and Planning Division

TEL +81 (52) 603-9362

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