Stainless steel bars are core basic materials that are applied to most industrial facilities.

Steel bar, which is a core component of car parts, power generation turbine blade, ship shaft, and precision machinery,
is alloy steel made by adding chrome and nickel, etc., to steel, and prevents corrosion, which is the biggest shortcoming of steels.

Consequently, they are in the limelight as core basic materials that are applied to most industrial facilities and used in various industries.

Dongwon Special Steel Co., Ltd provides products customized for our customers' demands.

Available size: Production external diameter

Available size

Classification	surface		Non-ESR material	ESR material
rolling round bar	black skin	BS	13.0~215.0 ㎜Ø	13.0~215.0
	white skin	CG	6.0~80.0	6.0~80.0
		CD	6.2~30.0	6.2~30.0
		ST	8.0~80.0	8.0~80.0
		RT	80.0~205.0	80.0~240 ㎜Ø
forging round bar	black skin	BS	216~350.0	90.0~250 ㎜Ø
	white skin	RT	206.0~350.0	80.0~240 ㎜Ø
rolling ballet			72, 75, 80, 85, 87, 90, 95, 100, 102, 110, 115, 120, 130, 131, 135, 140, 150

※ 350Ø RT or larger round bar requires separate negotiation

Available size : Dimension, diametrical variation, length

Available size : Dimension, diametrical variation, length

Classification	surface	dimensional tolerance	diametrical variation	ordered length
rolling product	BS	· 13.1~35㎜Ø: ±0.20㎜   ·35.1~50㎜Ø: ±0.25㎜ · 50.1~80㎜Ø: ±0.30㎜   ·85.1~85㎜Ø: ±0.50㎜ · 160.1~215㎜Ø: ±1.5% of Dia	70% of dimensional tolerance	2.0~7.7M
	ST	H11 or K11	30% of dimensional tolerance	2.0~7.5M
	CG	H9 or K9		2.0~7.5M
	CD	H9 or K9		2.0~7.5M
	RT	+0.6% of nominal diameter, -0	70% of dimensional tolerance	30.0~7.5M
rolling product	BS	· lower than 130㎜Ø : +3, -0   · 130.1~300㎜Ø: +5, -0 · 300.1~350㎜Ø: +8, -0	70% of dimensional tolerance	2.0~6.0M
	RT	· lower than 220㎜Ø : +0.6% of nominal diameter, -0 · more than 220㎜Ø : +0.1% of nominal diameter, -0

※ QT of lower than 5.5M can be produced/ More than 4M is required when fixed length or multiple length
※ As for white surface products of lower than 65mmØ and black surface products of lower than 70mmØ, the customer’s requirements could be meet with in random length range
※ Separate discussion should be needed as for white surface products of higher than 65mmØ and black surface products of higher than 70mmØ
※ SL products of higher than 110mmØ is less than 6.0M

Available : rolled flat bar

Available : rolled flat bar

	150≤W ≤210	210<W ≤250	250<W ≤310	310<W ≤360	360<W ≤410	410<W ≤450	450<W ≤510	510<W ≤610
10≤W≤13
13<W≤16
16<W≤19
19<W≤50
50<W≤65
65<W≤100
100<W≤115
115<W≤130
130<W≤150

※H-V Mill production range:■■■■■■
※Applicable ESR material range :■■■
※Only MD products can be produced:■■■

Available size TABLE

Available size TABLE 표

size	H8	H9	H10	H11
6.1~10.0㎜Ø	+0, -0.022	+0, -0.036	+0, -0.058	+0, -0.090
10.1~18.0㎜Ø	+0, -0.027	+0, -0.043	+0, -0.070	+0, -0.11
18.1~30.0㎜Ø	+0, -0.033	+0, -0.052	+0, -0.084	+0, -0.13
30.1~50.0㎜Ø	+0, -0.039	+0, -0.062	+0, -0.100	+0, -0.16
50.1~80.0㎜Ø	+0, -0.046	+0, -0.074	+0, -0.120	+0, -0.19
80.1~120.0㎜Ø	+0, -0.054	+0, -0.087	+0, -0.040	+0, -0.22

Steel bar-related standards

Steel bar-related standards

Standards		Description of standards
KS	D3706	Stainless steel bar
	D3692	Cold Finished stainless steel bar
JIS	G4303	Stainless steel bar
	G4318	Cold Finished stainless steel bar
ASTM	A 276	Standards specification for stainless steel bars and shapes
	A 582	Standards Specification for Free-machining stainless steel bars
	A 564	Standards Specification for hot-rolled and cold-finised age-hardening stainless steel bars and shapes
	A 479	Standards Specification for free-machining stainless steel bars for use in boilers and other pressure vessels
	A 182	Standards Specification for forged or rolled alloy steel pipe flange, forged fittings and valve and parts for high-temperature service
	A 193	Standards Specification for alloy steel and stainless steel bolting materials for high-temperature service
AISI	ZZZZZZZZ	American Iron and steel institute
DIN	10088-3	Semi-finished products for general purposes
MDF	A 182	Kepic standards