Gloria Steel Limited

One stop solution for special steel requirements

Manufacturing: Manufacturing Profile; Melting Facility; Plate mill and Forging Capability; Heat treatment; Machining; CNC cutting Machine; Pre-treatment plant

CNC cutting Machine

Numerical control cutting technical standard

1. verticality of adopting standard

Plate Thickness （mm）

Verticality （mm）

＜100

100-150

150-200

200-250

250-300

300-400

＜3

3-4

4-5

5-6

6-7

7-9

2. Cutting angle of vertical deviation（Cutting tolerance ：±mm）

precision of tolerance

Thickness （mm）

≤25

1.5

＞25-50

2

＞50-100

2.5

＞100-200

3

＞200-300

5

3. Stress relief

Mn steel,special steel: Inner Hole of right angle, Can be at angle section instead arc cutting.

4. Plate straightness according to: GIS709

GB/T: Per square meter ≤7mm

Inside control standard : 4mm

Medium Plate : according to Inside control standard : 4mm

special steel: according to GB/T

The thickness of steel plate allowance according to above standard.

5. Processing piece of allowance

Plate Thickness （mm）

＜100

＜200

＜300

＞300

Unilateral allowance（mm）

5－8

8－10

10－15

＞20

pressure vessels,boiler (BHW35,A537CL2,A299grB,A841grC,A387Gr11CL2,A516Gr70N+HIC,A515Gr60N,A203GrE,A517grQ), metallic structures(A36,A514GrB/P,S690QL,S890QL,S960Q,S355NL,S460NL,S355J2G3) offshore platform (EQ70,A709Gr100,A572Gr50,A514GrQ,API 2H50T,API 2W60,DNV DH36,EH36,FH36,EH40,FH40,E500). mould steel (S45C,P20,1.2311,1.2312,1.2738,NKA80,S136 ESR, 1.2316,1.2379,1.2344,1.2343,1.2803,1.2080,AISI M2) stainless steel, grades: 304, 304H, 304L, 316,316H,316L, 309S, 310S, 410,410S,17-4PH,2205,904L, 409L, 430,420,347,317L and so on.

1. verticality of adopting standard
Plate Thickness （mm）				Verticality （mm）
＜100 100-150 150-200 200-250 250-300 300-400				＜3 3-4 4-5 5-6 6-7 7-9
2. Cutting angle of vertical deviation（Cutting tolerance ：±mm）
precision of tolerance	Thickness （mm）
	≤25 1.5	＞25-50 2	＞50-100 2.5			＞100-200 3	＞200-300 5
3. Stress relief
Mn steel,special steel: Inner Hole of right angle, Can be at angle section instead arc cutting.
4. Plate straightness according to: GIS709
GB/T: Per square meter ≤7mm Inside control standard : 4mm Medium Plate : according to Inside control standard : 4mm special steel: according to GB/T The thickness of steel plate allowance according to above standard.
5. Processing piece of allowance
Plate Thickness （mm）＜100 ＜200 ＜300 ＞300					Unilateral allowance（mm） 5－8 8－10 10－15 ＞20