This document provides quality control and production procedures for a casting company. It details incoming inspection of raw materials and molds, measurement management including calibration of devices, and production process inspection. It lists available casting materials and standards. Dimensional tolerances are provided. Typical casting applications include machinery, medical, and hardware parts. The service process involves quotation, sample delivery, and mass production cycles ranging from 10 to 50 days depending on the complexity of the part.

1. QUALITY CONTROL
Quality Policy: Scientific management, casting high-quality products;
Continuous improvement and meeting customer satisfaction.
Incoming Inspection:
1. Raw materials& accessories incoming inspection
2. Mold inspection
Measurement Management
1. Files establishment of the monitoring device
2. Proper use of the monitoring device
3. Calibration, maintenance of the monitoring device
4. Deal scrapped of the monitoring device
Production Process Inspection
INSPECTION INSTRUMENT
Spectrum Analyzer Three Coordinates Measuring MachineHardness Tester

2. QUALITY CERTIFICATION
Passed the ISO9001-2000 Quality System Certification by British BM Trada Company

3. PRODUCTION PROCESS
Tools design&making Wax patterns injection Shaving&Inspection
Ceramic shell buildingDewax in steamautoclave
Firing the dewaxed shells
Assemble the wax patterns
Cut off
Correction
Mellting-Pouring
Grinding residual gates
Knockout
Shot blasting
Heat treatment
Surface treatment
Machining
Packaging

4. OUR CASTING CAPABILITY
（一）OUR CASTING CAPABILITY
(1)Depth of casting hole
Through Hole
2mm≤D＜4mm H≤2D Blind Hole
4mm≤D＜8mm H≤4D 2mm≤D＜4mm L≤D
D≥8mm H≤5D 4mm≤D＜8mm L≤2D
D≥8mm L≤2.5D
Dmin﹦2mm
The scope can be enlarged by the use of pre-formed ceramic cores at additional cost,only economical for large quantities
(2)Minimum wall thickness：2mm(1mm for small area)
(3)Radius of Rounds and fillest
(4)Surface Roughness：Ra1.6-3.2
(5)Casting Weight：2g-50kg
(6)Annual output：600 tons R≥0.3mm R≥0.5mm
（二）NOTES FOR CASTING-CONFIGURATION DESIGN
=1.5Min
=2T Rec
Equalize wall thickness Avoid sharp change in thickness
Avoid sharp angle Avoid sharp angle
Avoid sharp angle Avoid cross section
Dmin=2mm

5. MATERIAL STANDARDS
A wide range of carbon steel, low alloy steel and Stainless Steel are available on Customer’s specifications.
Casting materials
being processed
Material standards Materials category C Si Mn P≤ S≤ Cr Ni Mo Cu Nb
CF-8(304)
USA ASTM A743
A743M-93a
Austenitic
Stainless Steel
≤0.08 ≤2.0 ≤1.5 0.04 0.04 18.0-21.0 8.0-11.0
CF-8M(316)
USA ASTM A743
A743M-93a
Austenitic
Stainless Steel
≤0.08 ≤2.0 ≤1.5 0.04 0.04 18.0-21.0 9.0-12.0 2.0-3.0
CF-3M(316L)
USA ASTM A743
A743M-93a
Austenitic
Stainless Steel
≤0.03 ≤1.5 ≤1.5 0.04 0.04 17.0-21.0 9.0-13.0 2.0-3.0
1.4581
Germany
DIN EN 10283
Austenitic
Stainless Steel
≤0.07 ≤1.5 ≤1.5 0.04 0.03 18.0-20.0 9.0-12.0 2.0-2.5 ≥8*C,≤1.0
CF-16F(303T)
Special For
Customer
Austenitic
Stainless Steel
≤0.15 ≤1.0 ≤2.0 0.03 0.08-0.13 17.0-19.0 8.0-10.0 ≤0.6
SCS14
Japan
JIS G5121 1991
Austenitic
Stainless Steel
≤0.08 ≤2.0 ≤2.0 0.04 0.04 17.0-20.0 10.0-14.0 2.0-3.0
CB7Cu-1 (17-4PH)
USA ASTM A743
A743M-93a
Precipitation-hard
ening
Stainless Steel
≤0.07 ≤1.0 ≤0.7 0.035 0.03 15.5-17.7 3.6-4.6 2.5-3.2 0.15-0.35
430 USA AISI
Ferritic Stainless
Steel
≤0.12 ≤1.0 ≤1.0 0.04 0.03 16.0-18.0
CA-40(2Cr13)
USA ASTM A743
A743M-93a
Martensitic
Stainless Steel
0.20-0.40 ≤1.5 ≤1.0 0.04 0.04 11.5-14.0 ≤1.0
1.4059
Germany
DIN EN 10283
Martensitic
Stainless Steel
0.2-0.2
7
≤1.0 ≤1.0 0.045 0.03 15.0-17.0
1.25-2.
5
IC 1020 USA ICI Carbon Cast Steel 0.15-0.25 0.2-1.0 0.2-0.6 0.04 0.045 ≤0.35 ≤0.5 ≤0.25
IC 1030 USA ICI Carbon Cast Steel 0.25-0.35 0.2-1.0 0.7-1.0 0.04 0.045 ≤0.35 ≤0.5
IC 1040 USA ICI Carbon Cast Steel 0.35-0.45 0.2-1.0 0.7-1.0 0.04 0.045 ≤0.35 ≤0.5
IC 1050 USA ICI Carbon Cast Steel 0.45-0.55 0.2-1.0 0.7-1.0 0.04 0.045
IC 4140 USA ICI Alloy Cast Steel 0.35-0.45 0.2-0.8 0.7-1.0 0.04 0.045 0.8-1.1 ≤0.5 0.15-0.25
IC 4150 USA ICI Alloy Cast Steel 0.45-0.55 0.2-0.8 0.75-1.0 0.04 0.04 0.8-1.1 0.15-0.25
IC 4340 USA ICI Alloy Cast Steel 0.35-0.45 0.2-0.8 0.7-1.0 0.04 0.045 0.7-0.9 1.65-2.00 0.2-0.3
IC 8620 USA ICI Alloy Cast Steel 0.15-0.25 0.2-0.8 0.65-0.95 0.04 0.045 0.4-0.7 0.4-0.7 0.15-0.25
GS-25CrMo4
Germany
DIN 17182-85
Alloy Cast Steel 0.22-0.29 0.3-0.5 0.5-0.8 0.035 0.035 0.9-1.2 ＜0.3
0.15-0.
3
ZGMn13-2
China
GB5680-1998
High-Mn Wear-
resistantCast Steel
1.0-1.4 0.3-1.0 11.0-14.0 0.09 0.05
1.4136
Germany
DIN 17465-77
Wear-resistant
Cast Steel
0.5-0.9 ≤2.0 ≤1.0 0.045 0.03 27.0-30.0 2.0-2.5
CS-2
USA
ASTM A597-93
Alloy Tool
Cast Steel
0.45-0.55 0.9~1.2 ≤0.75 0.03 0.03 0.4-0.6
CS-7
USA
ASTM A597-9３
Alloy Tool
Cast Steel
0.50-0.60 ≤1 0.5-0.8 0.03 0.03 3.0-3.5 1.2-1.6

6. DIMENSION TOLERANCE
Linear Tolerance
Nominaldimension
(mm)
Length，width，height (mm) Centre line distances (mm)
D1 D2 D3 D1 D2
From To Tolerance Field Tolerance Field Tolerance Field Tolerance Tolerance
0 6 土 0.10 0.2 土 0.08 0.16
土 0.06 0.12
土 0.25 土 0.16
6 10 土 0.12 0.24 土 0.10 0.2
10 14 土 0.15 0.3 土 0.12 0.24
土 0.09 0.18
14 18 土 0.20 0.4 土 0.14 0.28
18 24 土 0.25 0.5 土 0.17 0.34 土 0.12 0.23
土 0.32 土 0.20
24 30 土 0.30 0.6 土 0.20 0.4 土 0.14 0.27
30 40 土 0.37 0.74 土 0.25 0.5 土 0.17 0.33
土 0.50 土 0.30
40 50 土 0.44 0.88 土 0.30 0.6 土 0.20 0.39
50 65 土 0.52 1.04 土 0.38 0.76 土 0.23 0.46
土 0.71 土 0.45
65 80 土 0.60 1.2 土 0.46 0.92 土 0.27 0.53
80 100 土 0.68 1.38 土 0.53 1.06 土 0.30 0.6
土 0.90 土 0.60
100 120 土 0.76 1.52 土 0.60 1.2 土 0.33 0.66
120 140 土 0.84 1.68 土 0.65 1.3 土 0.36 0.71
土 1.15 土 0.85140 160 土 0.92 1.84 土 0.72 1.44 土 0.38 0.76
160 180 土 1.02 2.04 土 0.80 1.6 土 0.42 0.81
180 200 土 1.12 2.24 土 0.88 1.76 土 0.43 0.86
土 1.80 土 1.00200 225 土 1.28 2.56 土 0.95 1.9 土 0.47 0.93
225 250 土 1.44 2.88 土 1.05 2.1 土 0.51 1.02
250 280 土 1.64 3.28 土 1.15 2.3 土 0.56 1.12
土 2.20 土 1.25
280 315 土 1.84 3.68 土 1.25 2.5 土 0.63 1.26
315 355 土 2.10 4.2 土 1.40 2.6 土 0.71 1.42
土 2.60 土 1.60
355 400 土 2.40 4.8 土 1.60 3.2 土 0.80 1.6
D1: General dimension tolerances
D2: Applicable to important dimensions requiring close tolerances
D3: Premium tolerances require additional operations at extra cost,
Only applied to a few special dimensions

7. PRODUCTS APPLICATION
TYPICAL PRODUCTS
MACHINERY EQUIPMENT PARTS CATEGORY
Valve part,material CF8M(316 cast
Stainless steel),Complex internal
Cavity,we use soluble wax to make
the core
Medical equipment part,material
CB7Cu-1(17-4PH precipitation-
hardening stainless steel),heat
treatment to HRC40-45
Pneumatic tool, with quite com-
Plex shape, Material IC8620(
Cast alloy steel),nitride surface
After casting
Cutting-tool,material 440C(marten-
Sitic stainless steel),heat treatment
to HRC55-60, can make knife&
scissors
Tool part,material CS-7(cast alloy
Tool steel),heat treatment to
HRC50-55
Transmission Machinery part,mater-
ial IC1040(cast carbon steel),the
original design is:assemble three parts
into one after respectively processed,
now we cast as a whole,to reduce costs
General industry(non)-
standard parts
Printing machinery partsAgricultural machinery partsMining machinery parts
Textile machinery partsFood machinery parts

8. INSTRUMENT$EQUIPMENT ACCESSORIES CATEGORY
TRANSPORT TOOLS PARTS CATEGORY
HARDWARE ACCESSORIES CATEGORY
Electronic instrument accessories Fire-fighting equipment
accessories
Sports equipment accessories Measuring&Cutting Tool
accessories
Medical devices accessories
Measuring&&Cutting Tool
accessories
Vehicle&motorcycle partsVehicle&motorcycle parts Railway locomotive parts
Kitchen accessoriesClocks&watche&jewelry
accessories
Marine hardware accessories
Electric&pneumatic&hand
Tools accessories
Artworks accessoriesLump accessories

9. SERVICE PROCESS
SERVICE CYCLE
Quotation cycle：General Castings，3-6 days after received inquiry；
to be machined products，6-10 days after received inquiry
Sample delivery cycle：General Castings，10-20 days after contract signed；
to be machined products，20-30 days after contract signed
Mass production cycle：General Castings，20-40 days after order signed；
to be machined products，30-50 days after order signed
Toliet&bathroom accessories
Door&window&lock
accessories
Toliet&bathroom accessories
Architectural hardware
accessories
Architectural hardware
accessories
Gate controller hardware
accessories
Architectural hardware
accessories
Electric&pneumatic&hand
Tools accessories
Electric&pneumatic&hand
Tools accessories
Customer inquiry Process analysis/
Accounting of price
Quotation
Sample delivery Technical
preparation
The signing of
the contract
Customer
confirmation
Mass production Products delivery

10. Special products or special requests should be consulted separately
TO SPEED UP THE QUOTATION PROCESS，PLEASE SUBMIT
AS MUCH OF THE LEFT INFORMATION AS POSSIBLE
1. PLS provide complete draft of castings or parts，which should be clearly marked parts material，
tolerances，surface processing，surface roughness，the beginning of the base processing，heat
treatment and surface treatment requiremnts；Point out the key dimensions & important surfaces
that need to pay particular attention to
2. Testing and inspection of the project & reporting requirements
3. Order quantity and annual demand.
4. The way to dlivery & the requirements of progress，packaging and transportation
Contacts info :
Zhaoqing OLYM Metal Products Co.,Ltd
Address:yong'an Town,Dinghu District Zhaoqing City,Guangdong Province,China
Email: sale@olymcast.com;
Skype:olymcast2001
Contact :0086 13822621994
http://www.castch.com