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Technical
Specifications

Our products are manufactured according to international standards, ensuring the highest quality and durability for various industrial applications.

Material Standards

ASTM Specifications & Grades

ASTM Specification	Grade
Austenitic Stainless Steel	304/CF8/1.4308/1.4301, 316/CF8M/1.4408, 304L/CF3/1.4306, 316L/CF3M/1.4404/1.4409, CF8C/1.4827, CK20/1.4843, CN7M/1.4500, CG8M/1.4431 etc.
Carbon Steel	WCB/1.0619, WCC, LCB, LCC/1.1138, EN-8, EN-9, EN-36 etc.
Duplex Stainless Steel	1A, 2A, 3A, 2205/4A, 2507/5A, 6A, 7A, CF3MN/1.4435, CD4MCU, CG6MMN/1.3964 etc.
Ferritic Stainless Steel	430/CB30/1.4059 etc.
Low Carbon Steel	WC1/1.5419, WC4, WC5, WC6/1.7356, WC9/1.7379, WC11, C5/1.7363, C12, C12A etc.
Martensitic Stainless Steel	410/CA15/1.4008, CA6NM-A/CA6NM-B/1.4313, 420/CA40/1.4028, 431, 440C etc.
Nickel Based Super Alloys	CW12MW, CW2M, CW6MC, Inconel, Monel, Hastelloy etc.

Precision Standards

Reference international standard: VDG P690

Nominal size mm	D1 Tolerance (general dimensions)	D2 Tolerance (some functional dimensions)
0 to 6	±0.15	±0.12
6 to 10	±0.18	±0.14
10 to 18	±0.22	±0.17
18 to 30	±0.26	±0.20
30 to 50	±0.40	±0.31
50 to 80	±0.45	±0.37
80 to 120	±0.55	±0.44
120 to 180	±0.8	±0.65
180 to 250	±1.20	±0.95
250 to 315	±1.30	±1.10
315 to 400	±1.80	±1.40

Straightness, flatness, parallelism, shape

Precision class	Length of the tolerated element
Precision class	to 25 mm	25 to 50 mm	up to 50 mm
D1	0.15 mm	0.25 mm	0.6%
D2	0.10 mm	0.20 mm	0.4%

According to ISO R 468, DIN 4769 and VSM10321

Class	Ra	Rz	Rt
N9	6.3	23-32	25-38