CUSTOM
Leveraging its mature production lines and skilled technical team, Xin King Steel flexibly undertakes OEM/ODM customization from substrate selection to surface finishing, precisely matching varied working conditions and design requirements.
We will tailor a solution specifically for you and respond to your inquiry within 24 hours.
Product Comparison
JIS Standard Technical Specifications
I. Galvanized Steel Coil
1.1 Applicable Standards
| Standard Code | Standard Title | Scope |
|---|---|---|
| JIS G3302 | Hot-dip galvanized steel sheets and coils | Applies to hot-dip galvanized steel sheets/coils (GI) |
| JIS G3313 | Electrolytic zinc-coated steel sheets and coils | Applies to electrolytic zinc-coated steel sheets/coils (EG) |
1.2 Grade Classification
| Grade | Application | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) |
|---|---|---|---|---|
| SGCC | General use | — | ≥270 | ≥20 |
| SGCD | Drawing | — | ≥270 | ≥25 |
| SGCE | Deep drawing | — | ≥270 | ≥30 |
| SGC340 | Structural | ≥245 | ≥340 | ≥20 |
| SGC400 | Structural | ≥295 | ≥400 | ≥18 |
| SGC440 | Structural | ≥335 | ≥440 | ≥18 |
| SGC490 | Structural | ≥365 | ≥490 | ≥16 |
| SGC570 | Structural | ≥420 | ≥570 | ≥14 |
1.3 Zinc Coating Mass Designation
| Designation | Coating Mass (g/m²) | Minimum Coating Mass (g/m²) |
|---|---|---|
| Z06 | 60 | 48 |
| Z08 | 80 | 64 |
| Z10 | 100 | 80 |
| Z12 | 120 | 96 |
| Z14 | 140 | 112 |
| Z18 | 180 | 144 |
| Z20 | 200 | 160 |
| Z22 | 220 | 176 |
| Z25 | 250 | 200 |
| Z27 | 275 | 220 |
1.4 Surface Treatment Codes
| Code | Description |
|---|---|
| C | Chromate treated (regular) |
| O | Oiled |
| U | Unoiled |
| P | Phosphate treated |
II. Aluzinc Steel Coil (Galvalume)
2.1 Applicable Standard
| Standard Code | Standard Title | Scope |
|---|---|---|
| JIS G3321 | Hot-dip 55% aluminum-zinc alloy-coated steel sheets and coils | 55%Al-43.5%Zn-1.5%Si coated steel |
2.2 Grade Classification
| Grade | Application | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) |
|---|---|---|---|---|
| SGLCC | General use | — | ≥270 | ≥20 |
| SGLCD | Drawing | — | ≥270 | ≥25 |
| SGLCE | Deep drawing | — | ≥270 | ≥30 |
| SGLC340 | Structural | ≥245 | ≥340 | ≥20 |
| SGLC400 | Structural | ≥295 | ≥400 | ≥18 |
| SGLC440 | Structural | ≥335 | ≥440 | ≥18 |
| SGLC490 | Structural | ≥365 | ≥490 | ≥16 |
| SGLC570 | Structural | ≥420 | ≥570 | ≥14 |
2.3 Coating Mass Designation
| Designation | Coating Mass (g/m²) | Minimum Coating Mass (g/m²) |
|---|---|---|
| AZ06 | 60 | 48 |
| AZ08 | 80 | 64 |
| AZ10 | 100 | 80 |
| AZ12 | 120 | 96 |
| AZ14 | 140 | 112 |
| AZ18 | 180 | 144 |
| AZ20 | 200 | 160 |
| AZ22 | 220 | 176 |
| AZ25 | 250 | 200 |
| AZ27 | 275 | 220 |
2.4 Coating Composition Requirements
| Element | Content Range |
|---|---|
| Aluminum (Al) | 55% ± 1.5% |
| Zinc (Zn) | 43.5% ± 1.5% |
| Silicon (Si) | 1.5% ± 0.5% |
2.5 Surface Treatment Codes
| Code | Description |
|---|---|
| C | Chromate treated |
| AF | Anti-fingerprint |
| O | Oiled |
| U | Unoiled |
| P | Phosphate treated |
III. Prepainted Steel Coil (Color Coated Steel)
3.1 Applicable Standard
| Standard Code | Standard Title | Scope |
|---|---|---|
| JIS G3312 | Prepainted steel sheets and coils | Applies to color-coated steel based on GI / AZ substrates |
3.2 Grade Classification
| Grade | Base Metal Type | Coating Type | Application |
|---|---|---|---|
| PPGI | Galvanized steel | Organic coating | General use |
| PPGL | Aluzinc steel | Organic coating | General use |
| PPS | Galvanized steel | Silicon-modified polyester | Weather-resistant |
| PPF | Galvanized steel | Fluorocarbon (PVDF) | High weather resistance |
3.3 Coating Performance Requirements
| Property | Requirement | Test Method |
|---|---|---|
| Coating thickness | Top coat ≥15μm, back coat ≥5μm | JIS K 5600 |
| Pencil hardness | ≥HB | JIS K 5600 |
| Bend test (T-bend) | General use ≤3T, drawing ≤2T | JIS G 3312 |
| Reverse impact | ≥6J | JIS G 3312 |
| Solvent resistance (MEK) | ≥50 rubs | JIS K 5600 |
| Salt spray resistance | ≥500 h (no blistering, no red rust) | JIS Z 2371 |
| UV resistance | ΔE ≤ 3.0 (1000 h) | JIS K 5600 |
3.4 Coating Type Classification
| Coating Type | Code | Characteristics |
|---|---|---|
| Polyester | PE | Standard weather resistance |
| Silicon-modified polyester | SMP | Medium weather resistance |
| High-durability polyester | HDP | High weather resistance |
| Fluorocarbon (PVDF) | PVDF | Superior weather resistance |
IV. Stainless Steel Coil & Prepainted Stainless Steel Coil
4.1 Applicable Standards
| Standard Code | Standard Title | Scope |
|---|---|---|
| JIS G4304 | Hot-rolled stainless steel plates, sheets and strips | Hot-rolled stainless steel |
| JIS G4305 | Cold-rolled stainless steel plates, sheets and strips | Cold-rolled stainless steel |
| JIS G4313 | Stainless steel strips for springs | Spring-grade stainless steel strips |
4.2 Common Grades & Chemical Composition (wt%)
| Grade | Type | C | Si | Mn | P | S | Cr | Ni | Mo | Other |
|---|---|---|---|---|---|---|---|---|---|---|
| SUS201 | Austenitic | ≤0.15 | ≤1.00 | 5.5-7.5 | ≤0.045 | ≤0.030 | 16.0-18.0 | 3.5-5.5 | — | N≤0.25 |
| SUS304 | Austenitic | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0-20.0 | 8.0-10.5 | — | — |
| SUS316 | Austenitic | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | — |
| SUS430 | Ferritic | ≤0.12 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 16.0-18.0 | ≤0.75 | — | — |
4.3 Mechanical Property Requirements
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| SUS201 | ≥275 | ≥515 | ≥40 | ≤217 |
| SUS304 | ≥205 | ≥515 | ≥40 | ≤201 |
| SUS316 | ≥205 | ≥515 | ≥40 | ≤217 |
| SUS430 | ≥205 | ≥450 | ≥22 | ≤183 |
4.4 Surface Finish Conditions
| Code | Description | Characteristics |
|---|---|---|
| 2B | Bright cold-rolled | Smooth, bright surface after cold rolling, heat treatment, pickling and skin pass |
| BA | Bright annealed | Mirror-like finish after bright annealing in protective atmosphere |
| No.4 | Brushed | Continuous grain pattern by abrasive belt grinding |
| HL | Hairline | Long linear grain, uniform texture |
| 8K | Mirror | Precision polished mirror finish |
| 2D | Dull finish | Matte surface after heat treatment and pickling |
V. Aluminum Coil & Prepainted Aluminum Coil
5.1 Applicable Standards
| Standard Code | Standard Title | Scope |
|---|---|---|
| JIS H4000 | Aluminum and aluminum alloy sheets and strips | Aluminum / alloy sheets and coils |
| JIS H4160 | Aluminum and aluminum alloy foils | Aluminum foils |
| JIS H8601 | Anodic oxide coatings on aluminum and aluminum alloys | Anodized finish |
5.2 Common Grades & Chemical Composition (wt%)
| Grade | Type | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Al |
|---|---|---|---|---|---|---|---|---|---|---|
| A1050 | Pure Al | ≤0.25 | ≤0.40 | ≤0.05 | ≤0.05 | ≤0.05 | — | ≤0.05 | ≤0.03 | ≥99.5 |
| A1060 | Pure Al | ≤0.25 | ≤0.35 | ≤0.05 | ≤0.03 | ≤0.03 | — | ≤0.05 | ≤0.03 | ≥99.6 |
| A1100 | Pure Al | ≤1.0 | ≤0.7 | 0.05-0.20 | ≤0.05 | — | — | ≤0.10 | — | ≥99.0 |
| A3003 | Al-Mn | ≤0.6 | ≤0.7 | 0.05-0.20 | 1.0-1.5 | — | — | ≤0.10 | — | Balance |
| A5052 | Al-Mg | ≤0.25 | ≤0.40 | ≤0.10 | ≤0.10 | 2.2-2.8 | 0.15-0.35 | ≤0.10 | — | Balance |
| A6061 | Al-Mg-Si | 0.4-0.8 | ≤0.7 | 0.15-0.40 | ≤0.15 | 0.8-1.2 | 0.04-0.35 | ≤0.25 | ≤0.15 | Balance |
5.3 Mechanical Properties (JIS H4000)
| Grade | Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|---|
| A1050 | O | ≥60 | — | ≥23 |
| A1050 | H14 | ≥100 | — | ≥6 |
| A1100 | O | ≥75 | — | ≥25 |
| A1100 | H14 | ≥110 | — | ≥9 |
| A3003 | O | ≥95 | ≥35 | ≥20 |
| A3003 | H14 | ≥145 | ≥130 | ≥8 |
| A5052 | O | ≥170 | ≥65 | ≥20 |
| A5052 | H32 | ≥215 | ≥160 | ≥10 |
| A6061 | T6 | ≥260 | ≥240 | ≥10 |
5.4 Temper Designations
| Code | Description |
|---|---|
| O | Annealed |
| H12 | Quarter hard |
| H14 | Half hard |
| H16 | Three-quarter hard |
| H18 | Full hard |
| H24 | Half hard (annealed & rolled) |
| H32 | Stabilized (1/4 hard) |
| H34 | Stabilized (1/2 hard) |
| T6 | Solution heat treated + artificial aging |
VI. Cross-Reference of Standards
| Product Type | JIS Standard | ASTM Equivalent | EN Equivalent | GB Equivalent |
|---|---|---|---|---|
| Galvanized Steel Coil | JIS G3302 | ASTM A653 | EN 10346 | GB/T 2518 |
| Aluzinc Steel Coil | JIS G3321 | ASTM A792 | EN 10346 | GB/T 14978 |
| Prepainted Steel Coil | JIS G3312 | ASTM A755 | EN 10169 | GB/T 12754 |
| Stainless Steel Coil | JIS G4304/G4305 | ASTM A240 | EN 10088 | GB/T 3280 |
| Prepainted Stainless Coil | — | — | — | Company standard |
| Aluminum Coil | JIS H4000 | ASTM B209 | EN 485 | GB/T 3880 |
| Prepainted Aluminum Coil | — | ASTM B209 | — | YS/T 431 |
VII. Quality Control Points
7.1 Coating / Layer Inspection
| Test Item | Test Method | JIS Requirement |
|---|---|---|
| Coating mass | 3-point sampling, XRF | ≥ specified minimum |
| Coating thickness | Magnetic thickness gauge | Top coat ≥15μm |
| Color difference | Colorimeter | ΔE ≤ 1.0 (vs standard panel) |
| Gloss (60°) | Gloss meter | As per customer specification |
| Adhesion (T-bend) | Bend test | ≤3T without flaking |
| Adhesion (cross-cut) | Cross-cut test | Class 0 or 1 |
7.2 Corrosion Resistance Tests
| Test Item | Test Conditions | Requirement |
|---|---|---|
| Neutral salt spray (NSS) | 5% NaCl, 35°C | GI ≥72h, AZ ≥200h, prepainted ≥500h |
| Cyclic corrosion test | Salt spray + dry + humidity | Per customer requirement |
| UV aging resistance | QUV 340nm, 60°C | 1000h, ΔE ≤ 3.0 |
VIII. Significance of JIS Standard Certification
- International Recognition: JIS standards are widely accepted in Japan, Southeast Asia, Middle East, and global markets.
- Quality Assurance: Strict requirements on chemical composition, mechanical properties, dimensional tolerances and surface quality.
- Trade Facilitation: Products compliant with JIS standards have easier access to Japanese and Southeast Asian markets.
- Technical Benchmark: Certain JIS specifications exceed international standards (e.g., dimensional accuracy, surface finish).
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Privacy Policy & Terms
Last Updated: August 25, 2026
Part 1: Privacy Policy
1. Introduction
Shandong Xin King Steel Co., LTD. (hereinafter referred to as "we," "our company," or "Xin King Steel") respects and protects your privacy. This Privacy Policy explains how we collect, use, store, protect, and share your personal information when you visit our website (hereinafter referred to as "this website") or use our services.
Please carefully read and fully understand this Privacy Policy before using this website or providing us with your personal information. If you do not agree with this policy, please do not use this website or provide your personal information.
2. Information We Collect
2.1 Information You Voluntarily Provide
When you interact with this website, we may collect the following categories of information that you voluntarily provide:
Contact Information – including your name, company name, email address, phone number, and country/region.
Inquiry Information – such as product requirements, project details, and the message content you submit when making an inquiry or contacting us.
Account Information – if you register an account, we collect your username, password, and other registration details.
Subscription Information – if you subscribe to our newsletter or marketing communications.
Technical Inquiries – technical questions you raise via email, online customer service, or social media.
2.2 Information Automatically Collected
When you visit this website, we may automatically collect the following types of information:
Device Information – including your IP address, browser type, operating system, device type, and screen resolution.
Access Information – such as access time, pages viewed, click behavior, referral source, time spent on the site, and download history.
Location Information – approximate geographic location (country/city level) derived from your IP address.
Performance Information – including page load speed, error reports, and other website performance data.
2.3 Cookies and Similar Technologies
We use cookies and similar technologies to enhance your browsing experience. For details, please refer to the Cookie section of this policy.
3. How We Use Your Information
We may use the information collected for the following purposes:
To provide and optimize services – responding to your inquiries, processing orders, providing technical support, and arranging sample delivery.
For communication and feedback – replying to your queries, sending order confirmations, shipping notifications, delivery tracking information, and similar communications.
To personalize your experience – recommending relevant products and services based on your interests and preferences.
For marketing and promotion – sending product updates, industry news, and promotional activities. You may unsubscribe from such communications at any time.
For website analytics – analyzing website visit data to optimize content and user experience.
To comply with legal obligations – complying with applicable laws and regulations and responding to legitimate requests from law enforcement agencies.
For security assurance – detecting and preventing fraud, abuse, and other malicious activities.
4. Information Sharing and Disclosure
We are committed to not selling your personal information. We may share your information with third parties only in the following circumstances:
4.1 Service Providers
We may engage trusted third-party service providers to assist in operating our website, processing payments, sending emails, providing technical support, analyzing data, and similar functions. These providers have access to your information only to the extent necessary to perform their specific tasks and are contractually obligated to maintain confidentiality. Categories of such providers include cloud hosting services, data analytics platforms (such as Google Analytics and Baidu Analytics), email marketing platforms, and online customer service system providers.
4.2 Business Transfer
In the event of a merger, acquisition, asset sale, bankruptcy liquidation, or similar transaction, your information may be transferred as part of the business assets. We will notify you of any such change via a prominent notice on this website or by other appropriate means.
4.3 Legal Requirements
We may disclose your information when required to do so by law, such as to comply with applicable laws and regulations, to respond to court orders, subpoenas, or other legal processes, to protect the rights, property, or safety of our company and affiliates, or to investigate and address fraud or security incidents.
5. Data Security
We implement reasonable technical and organizational measures to protect your personal information from unauthorized access, use, disclosure, modification, or destruction. These measures include:
SSL Encryption – our website uses SSL/TLS encryption technology to ensure secure data transmission.
Access Control – internal access to personal information is strictly restricted to authorized personnel only.
Periodic Review – we regularly review our data collection, storage, and processing practices.
Security Training – our employees receive training on data security and privacy protection.
Please note that while we take reasonable measures to protect your information, no data transmission or storage system can be 100% secure. If you discover any security vulnerability, please contact us immediately using the information provided below.
6. Data Retention
We retain your personal information for the period necessary to fulfill the purposes described in this policy, unless a longer retention period is required or permitted by law. Our retention practices are as follows:
Inquiry information is retained for 5 years after the completion of the related transaction.
Account information is kept for the duration of the account’s existence, plus an additional 3 years after the account is closed.
Subscription information is retained until you unsubscribe from the service.
Website access logs are retained for 12 months.
7. Your Rights
Under applicable data protection laws, including the GDPR, you have the following rights concerning your personal information:
Right of Access – you may request a copy of your personal information held by us.
Right to Rectification – you may request correction of inaccurate or incomplete personal information.
Right to Erasure – you may request deletion of your personal information under specific circumstances.
Right to Restriction of Processing – you may request that we restrict the processing of your personal information in certain situations.
Right to Data Portability – you may request that we transfer your personal information to a third party in a structured, commonly used, and machine-readable format.
Right to Object – you may object to the processing of your personal information based on our legitimate interests.
Right to Withdraw Consent – you may withdraw any consent you have previously given at any time. Such withdrawal will not affect the lawfulness of processing based on consent before its withdrawal.
If you wish to exercise any of these rights, please contact us using the information provided at the end of this policy. We will respond to your request within 30 days.
8. Cookie Policy
8.1 What are Cookies?
Cookies are small text files stored on your device by a website to record your preferences, login status, and browsing behavior.
8.2 Types of Cookies We Use
We use the following categories of cookies:
Necessary Cookies – these are essential for enabling basic website functions, such as page navigation and language selection. They are required and cannot be disabled.
Performance Cookies – these collect information about how visitors use our website, helping us improve performance. They are optional.
Functional Cookies – these remember your preferences to provide a personalized experience. They are optional.
Marketing Cookies – these are used to deliver relevant advertisements and analyze marketing effectiveness. They are optional.
8.3 Managing Cookies
You can manage or delete cookies through your browser settings. Please note that disabling necessary cookies may affect the normal functionality of the website.
9. Third-Party Links
This website may contain links to third-party websites. These sites have independent privacy policies, and we assume no responsibility for the content or practices of such sites. Please carefully read their privacy policies before submitting any personal information to third-party websites.
10. International Data Transfers
Shandong Xin King Steel Co., LTD. is located in China, and our services may be offered to customers globally. If you are located outside China, your information may be transferred to China or other countries/regions. We will take appropriate security measures to ensure that your information is adequately protected in accordance with applicable data protection laws.
11. Children's Privacy
This website is not intended for minors under 18 years of age. We do not knowingly collect personal information from minors. If we discover that such information has been inadvertently collected, we will delete it immediately.
12. Updates to This Privacy Policy
We may update this Privacy Policy from time to time. Material changes will be communicated to you through one of the following methods: posting the updated version on this website, or notifying you via email (if you are subscribed) or via a website announcement before the change takes effect. We recommend that you periodically review this Privacy Policy to stay informed of the latest updates.
13. Contact Us
If you have any questions, comments, or requests regarding this Privacy Policy, please contact us using the contact information provided on the “Contact Us” page of this website:
Online Form: You can also submit an inquiry through the “Contact Us” page on this website.