Alloy coil is pearlitic heat-resistant steel with high thermal strength at high temperature（ δ B ≥ 440MPa) and oxidation resistance, with certain hydrogen corrosion resistance.

Alloy coil is pearlitic heat-resistant steel with high thermal strength at high temperature（ δ B ≥ 440MPa) and oxidation resistance, with certain hydrogen corrosion resistance.

Alloy coil is pearlitic heat-resistant steel with high thermal strength at high temperature（ δ B ≥ 440MPa) and oxidation resistance, with certain hydrogen corrosion resistance.

Alloy coil is pearlitic heat-resistant steel with high thermal strength at high temperature（ δ B ≥ 440MPa) and oxidation resistance, with certain hydrogen corrosion resistance.

Alloy coil is pearlitic heat-resistant steel with high thermal strength at high temperature（ δ B ≥ 440MPa) and oxidation resistance, with certain hydrogen corrosion resistance.

Alloy coil is pearlitic heat-resistant steel with high thermal strength at high temperature（ δ B ≥ 440MPa) and oxidation resistance, with certain hydrogen corrosion resistance.

Alloy coil is pearlitic heat-resistant steel with high thermal strength at high temperature（ δ B ≥ 440MPa) and oxidation resistance, with certain hydrogen corrosion resistance.

Alloy coil is pearlitic heat-resistant steel with high thermal strength at high temperature（ δ B ≥ 440MPa) and oxidation resistance, with certain hydrogen corrosion resistance.

Alloy coil is pearlitic heat-resistant steel with high thermal strength at high temperature（ δ B ≥ 440MPa) and oxidation resistance, with certain hydrogen corrosion resistance.

Alloy coil is pearlitic heat-resistant steel with high thermal strength at high temperature（ δ B ≥ 440MPa) and oxidation resistance, with certain hydrogen corrosion resistance.